/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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:10:33,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:10:33,788 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 01:10:33,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:10:33,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:10:33,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:10:33,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:10:33,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:10:33,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:10:33,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:10:33,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:10:33,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:10:33,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:10:33,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:10:33,811 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:10:33,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:10:33,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:10:33,812 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:10:33,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:10:33,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:10:33,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:10:33,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:10:33,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:10:33,813 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:10:33,814 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:10:33,814 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:10:33,814 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:10:33,814 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:10:33,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:10:33,815 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:10:33,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:10:33,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:10:33,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:10:33,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:10:33,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:10:33,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:10:33,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:10:33,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:10:33,817 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:10:33,817 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:10:33,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:10:33,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:10:33,817 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:10:33,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:10:33,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:10:33,818 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:10:33,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:10:33,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:10:33,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:10:33,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:10:33,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:10:33,993 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:10:33,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2023-12-22 01:10:34,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:10:35,207 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:10:35,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2023-12-22 01:10:35,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d59b289/d1a2619b39534fe89c157aa3e107f710/FLAG105c2966b [2023-12-22 01:10:35,245 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d59b289/d1a2619b39534fe89c157aa3e107f710 [2023-12-22 01:10:35,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:10:35,250 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:10:35,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:10:35,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:10:35,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:10:35,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:10:35" (1/1) ... [2023-12-22 01:10:35,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7081af58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:35, skipping insertion in model container [2023-12-22 01:10:35,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:10:35" (1/1) ... [2023-12-22 01:10:35,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:10:35,606 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[11742,11755] [2023-12-22 01:10:35,650 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[18803,18816] [2023-12-22 01:10:36,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:10:36,132 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:10:36,152 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[11742,11755] [2023-12-22 01:10:36,158 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[18803,18816] [2023-12-22 01:10:36,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:10:36,467 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:10:36,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36 WrapperNode [2023-12-22 01:10:36,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:10:36,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:10:36,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:10:36,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:10:36,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,586 INFO L138 Inliner]: procedures = 38, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5066 [2023-12-22 01:10:36,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:10:36,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:10:36,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:10:36,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:10:36,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,610 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,655 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 01:10:36,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:10:36,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:10:36,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:10:36,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:10:36,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (1/1) ... [2023-12-22 01:10:36,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:10:36,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:10:36,816 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 01:10:36,839 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 01:10:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:10:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:10:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:10:36,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:10:36,926 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:10:36,927 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:10:58,108 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:10:58,153 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:10:58,154 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:10:58,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:10:58 BoogieIcfgContainer [2023-12-22 01:10:58,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:10:58,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:10:58,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:10:58,158 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:10:58,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:10:35" (1/3) ... [2023-12-22 01:10:58,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5571eba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:10:58, skipping insertion in model container [2023-12-22 01:10:58,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:10:36" (2/3) ... [2023-12-22 01:10:58,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5571eba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:10:58, skipping insertion in model container [2023-12-22 01:10:58,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:10:58" (3/3) ... [2023-12-22 01:10:58,159 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2023-12-22 01:10:58,170 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:10:58,170 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:10:58,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:10:58,215 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;@49a1c83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:10:58,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:10:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states 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 01:10:58,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 01:10:58,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:10:58,226 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] [2023-12-22 01:10:58,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:10:58,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:10:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1603356568, now seen corresponding path program 1 times [2023-12-22 01:10:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:10:58,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929678165] [2023-12-22 01:10:58,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:10:58,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:10:58,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:10:58,244 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 01:10:58,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 01:10:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:10:58,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:10:58,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:10:58,336 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 01:10:58,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:10:58,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:10:58,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929678165] [2023-12-22 01:10:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929678165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:10:58,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:10:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:10:58,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97688141] [2023-12-22 01:10:58,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:10:58,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:10:58,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:10:58,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:10:58,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:10:58,362 INFO L87 Difference]: Start difference. First operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 01:10:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:10:58,439 INFO L93 Difference]: Finished difference Result 1632 states and 3215 transitions. [2023-12-22 01:10:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:10:58,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-22 01:10:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:10:58,456 INFO L225 Difference]: With dead ends: 1632 [2023-12-22 01:10:58,456 INFO L226 Difference]: Without dead ends: 830 [2023-12-22 01:10:58,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 01:10:58,464 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:10:58,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1570 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:10:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-12-22 01:10:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2023-12-22 01:10:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8973429951690821) internal successors, (1571), 829 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 01:10:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1571 transitions. [2023-12-22 01:10:58,525 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1571 transitions. Word has length 21 [2023-12-22 01:10:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:10:58,526 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1571 transitions. [2023-12-22 01:10:58,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 01:10:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1571 transitions. [2023-12-22 01:10:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 01:10:58,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:10:58,527 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] [2023-12-22 01:10:58,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 01:10:58,731 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 01:10:58,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:10:58,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:10:58,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1103262826, now seen corresponding path program 1 times [2023-12-22 01:10:58,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:10:58,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661942441] [2023-12-22 01:10:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:10:58,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:10:58,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:10:58,735 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 01:10:58,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:10:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:10:58,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:10:58,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:10:58,828 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 01:10:58,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:10:58,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:10:58,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661942441] [2023-12-22 01:10:58,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661942441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:10:58,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:10:58,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:10:58,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193184638] [2023-12-22 01:10:58,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:10:58,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:10:58,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:10:58,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:10:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:10:58,831 INFO L87 Difference]: Start difference. First operand 830 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 01:10:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:10:58,905 INFO L93 Difference]: Finished difference Result 874 states and 1640 transitions. [2023-12-22 01:10:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:10:58,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-22 01:10:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:10:58,908 INFO L225 Difference]: With dead ends: 874 [2023-12-22 01:10:58,909 INFO L226 Difference]: Without dead ends: 830 [2023-12-22 01:10:58,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 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 01:10:58,910 INFO L413 NwaCegarLoop]: 1568 mSDtfsCounter, 0 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:10:58,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4669 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:10:58,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-12-22 01:10:58,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2023-12-22 01:10:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8599033816425121) internal successors, (1540), 829 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states 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 01:10:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1540 transitions. [2023-12-22 01:10:58,922 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1540 transitions. Word has length 21 [2023-12-22 01:10:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:10:58,922 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1540 transitions. [2023-12-22 01:10:58,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 01:10:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1540 transitions. [2023-12-22 01:10:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 01:10:58,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:10:58,927 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] [2023-12-22 01:10:58,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 01:10:59,130 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 01:10:59,130 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:10:59,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:10:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash 51546625, now seen corresponding path program 1 times [2023-12-22 01:10:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:10:59,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276392146] [2023-12-22 01:10:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:10:59,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:10:59,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:10:59,133 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 01:10:59,133 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 (4)] Waiting until timeout for monitored process [2023-12-22 01:10:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:10:59,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:10:59,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:10:59,786 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 01:10:59,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:10:59,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:10:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276392146] [2023-12-22 01:10:59,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276392146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:10:59,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:10:59,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:10:59,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207861820] [2023-12-22 01:10:59,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:10:59,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:10:59,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:10:59,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:10:59,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:10:59,789 INFO L87 Difference]: Start difference. First operand 830 states and 1540 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 01:10:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:10:59,985 INFO L93 Difference]: Finished difference Result 1076 states and 1936 transitions. [2023-12-22 01:10:59,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:10:59,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-22 01:10:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:10:59,989 INFO L225 Difference]: With dead ends: 1076 [2023-12-22 01:10:59,989 INFO L226 Difference]: Without dead ends: 1035 [2023-12-22 01:10:59,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:10:59,990 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 3234 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:10:59,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3234 Valid, 1997 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:10:59,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-12-22 01:11:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 908. [2023-12-22 01:11:00,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 906 states have (on average 1.8399558498896247) internal successors, (1667), 907 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states 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 01:11:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1667 transitions. [2023-12-22 01:11:00,004 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1667 transitions. Word has length 51 [2023-12-22 01:11:00,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:00,004 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1667 transitions. [2023-12-22 01:11:00,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 01:11:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1667 transitions. [2023-12-22 01:11:00,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-22 01:11:00,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:00,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:11:00,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 01:11:00,208 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 01:11:00,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:00,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:00,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2145916561, now seen corresponding path program 1 times [2023-12-22 01:11:00,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:00,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290825608] [2023-12-22 01:11:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:00,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:00,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:00,211 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 01:11:00,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:00,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:00,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:00,380 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 01:11:00,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:00,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:00,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290825608] [2023-12-22 01:11:00,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290825608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:00,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:00,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:00,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036009585] [2023-12-22 01:11:00,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:00,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:00,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:00,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:00,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:00,382 INFO L87 Difference]: Start difference. First operand 908 states and 1667 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:11:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:00,414 INFO L93 Difference]: Finished difference Result 1130 states and 2025 transitions. [2023-12-22 01:11:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-22 01:11:00,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:00,418 INFO L225 Difference]: With dead ends: 1130 [2023-12-22 01:11:00,418 INFO L226 Difference]: Without dead ends: 1011 [2023-12-22 01:11:00,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:00,419 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1480 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1596 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 01:11:00,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-12-22 01:11:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1009. [2023-12-22 01:11:00,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1007 states have (on average 1.8133068520357498) internal successors, (1826), 1008 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states 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 01:11:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1826 transitions. [2023-12-22 01:11:00,433 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1826 transitions. Word has length 53 [2023-12-22 01:11:00,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:00,433 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1826 transitions. [2023-12-22 01:11:00,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:11:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1826 transitions. [2023-12-22 01:11:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 01:11:00,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:00,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:11:00,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 01:11:00,637 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 01:11:00,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:00,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:00,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2036322024, now seen corresponding path program 1 times [2023-12-22 01:11:00,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:00,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799605410] [2023-12-22 01:11:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:00,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:00,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:00,640 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 01:11:00,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 01:11:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:00,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:11:00,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:00,728 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 01:11:00,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:00,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:00,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799605410] [2023-12-22 01:11:00,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799605410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:00,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:00,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:11:00,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721958748] [2023-12-22 01:11:00,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:00,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:11:00,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:00,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:11:00,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:11:00,730 INFO L87 Difference]: Start difference. First operand 1009 states and 1826 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:11:00,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:00,778 INFO L93 Difference]: Finished difference Result 1023 states and 1843 transitions. [2023-12-22 01:11:00,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:11:00,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-22 01:11:00,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:00,784 INFO L225 Difference]: With dead ends: 1023 [2023-12-22 01:11:00,784 INFO L226 Difference]: Without dead ends: 1021 [2023-12-22 01:11:00,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 01:11:00,785 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4600 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 01:11:00,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4600 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-12-22 01:11:00,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1017. [2023-12-22 01:11:00,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1015 states have (on average 1.805911330049261) internal successors, (1833), 1016 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states 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 01:11:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1833 transitions. [2023-12-22 01:11:00,801 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1833 transitions. Word has length 54 [2023-12-22 01:11:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:00,801 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1833 transitions. [2023-12-22 01:11:00,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 01:11:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1833 transitions. [2023-12-22 01:11:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:11:00,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:00,807 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] [2023-12-22 01:11:00,823 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 01:11:01,011 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 01:11:01,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:01,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1922958665, now seen corresponding path program 1 times [2023-12-22 01:11:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:01,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975477078] [2023-12-22 01:11:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:01,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:11:01,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:01,013 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 01:11:01,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:01,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:01,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:01,137 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 01:11:01,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:01,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:01,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975477078] [2023-12-22 01:11:01,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975477078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:01,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:01,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778582086] [2023-12-22 01:11:01,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:01,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:01,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:01,139 INFO L87 Difference]: Start difference. First operand 1017 states and 1833 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:01,170 INFO L93 Difference]: Finished difference Result 1257 states and 2213 transitions. [2023-12-22 01:11:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 01:11:01,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:01,174 INFO L225 Difference]: With dead ends: 1257 [2023-12-22 01:11:01,174 INFO L226 Difference]: Without dead ends: 1132 [2023-12-22 01:11:01,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 01:11:01,175 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1494 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1653 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 01:11:01,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-22 01:11:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1130. [2023-12-22 01:11:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1128 states have (on average 1.7810283687943262) internal successors, (2009), 1129 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states 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 01:11:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 2009 transitions. [2023-12-22 01:11:01,190 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 2009 transitions. Word has length 55 [2023-12-22 01:11:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:01,190 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 2009 transitions. [2023-12-22 01:11:01,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 2009 transitions. [2023-12-22 01:11:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:11:01,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:01,191 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] [2023-12-22 01:11:01,196 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 01:11:01,394 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 01:11:01,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:01,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1694319433, now seen corresponding path program 1 times [2023-12-22 01:11:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:01,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10595486] [2023-12-22 01:11:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:01,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:01,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:01,396 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 01:11:01,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:01,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:01,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:01,510 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 01:11:01,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:01,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:01,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10595486] [2023-12-22 01:11:01,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10595486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:01,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:01,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:01,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324075492] [2023-12-22 01:11:01,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:01,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:01,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:01,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:01,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:01,511 INFO L87 Difference]: Start difference. First operand 1130 states and 2009 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:01,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:01,545 INFO L93 Difference]: Finished difference Result 1772 states and 3012 transitions. [2023-12-22 01:11:01,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:01,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 01:11:01,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:01,549 INFO L225 Difference]: With dead ends: 1772 [2023-12-22 01:11:01,549 INFO L226 Difference]: Without dead ends: 1433 [2023-12-22 01:11:01,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 01:11:01,550 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1490 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1653 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 01:11:01,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2023-12-22 01:11:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1431. [2023-12-22 01:11:01,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1429 states have (on average 1.72778166550035) internal successors, (2469), 1430 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 01:11:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2469 transitions. [2023-12-22 01:11:01,570 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2469 transitions. Word has length 55 [2023-12-22 01:11:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:01,571 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 2469 transitions. [2023-12-22 01:11:01,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2469 transitions. [2023-12-22 01:11:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:11:01,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:01,571 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] [2023-12-22 01:11:01,578 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 01:11:01,775 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 01:11:01,776 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:01,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:01,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1068663369, now seen corresponding path program 1 times [2023-12-22 01:11:01,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:01,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649070195] [2023-12-22 01:11:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:01,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:01,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:01,777 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 01:11:01,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:01,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:01,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:01,876 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 01:11:01,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:01,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649070195] [2023-12-22 01:11:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649070195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:01,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:01,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:01,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249676438] [2023-12-22 01:11:01,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:01,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:01,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:01,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:01,877 INFO L87 Difference]: Start difference. First operand 1431 states and 2469 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:01,936 INFO L93 Difference]: Finished difference Result 2639 states and 4329 transitions. [2023-12-22 01:11:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 01:11:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:01,942 INFO L225 Difference]: With dead ends: 2639 [2023-12-22 01:11:01,942 INFO L226 Difference]: Without dead ends: 1999 [2023-12-22 01:11:01,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 01:11:01,943 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1488 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1655 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 01:11:01,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1655 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:01,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2023-12-22 01:11:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2023-12-22 01:11:01,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1995 states have (on average 1.66265664160401) internal successors, (3317), 1996 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states 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 01:11:01,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 3317 transitions. [2023-12-22 01:11:01,973 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 3317 transitions. Word has length 55 [2023-12-22 01:11:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:01,974 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 3317 transitions. [2023-12-22 01:11:01,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:01,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 3317 transitions. [2023-12-22 01:11:01,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:11:01,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:01,974 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] [2023-12-22 01:11:01,979 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 01:11:02,177 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 01:11:02,177 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:02,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1957396809, now seen corresponding path program 1 times [2023-12-22 01:11:02,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:02,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763599471] [2023-12-22 01:11:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:02,178 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 01:11:02,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:02,179 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 01:11:02,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:02,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:02,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:02,286 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 01:11:02,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:02,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:02,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763599471] [2023-12-22 01:11:02,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763599471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:02,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:02,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:02,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611590269] [2023-12-22 01:11:02,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:02,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:02,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:02,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:02,288 INFO L87 Difference]: Start difference. First operand 1997 states and 3317 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:02,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:02,336 INFO L93 Difference]: Finished difference Result 4265 states and 6747 transitions. [2023-12-22 01:11:02,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:02,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 01:11:02,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:02,345 INFO L225 Difference]: With dead ends: 4265 [2023-12-22 01:11:02,345 INFO L226 Difference]: Without dead ends: 3059 [2023-12-22 01:11:02,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 01:11:02,350 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1486 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1657 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 01:11:02,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1657 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-12-22 01:11:02,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3057. [2023-12-22 01:11:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 3055 states have (on average 1.5937806873977087) internal successors, (4869), 3056 states have internal predecessors, (4869), 0 states have call successors, (0), 0 states 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 01:11:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4869 transitions. [2023-12-22 01:11:02,401 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4869 transitions. Word has length 55 [2023-12-22 01:11:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:02,401 INFO L495 AbstractCegarLoop]: Abstraction has 3057 states and 4869 transitions. [2023-12-22 01:11:02,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4869 transitions. [2023-12-22 01:11:02,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 01:11:02,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:02,402 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] [2023-12-22 01:11:02,406 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 (10)] Forceful destruction successful, exit code 0 [2023-12-22 01:11:02,606 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 01:11:02,606 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:02,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:02,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1654375497, now seen corresponding path program 1 times [2023-12-22 01:11:02,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:02,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800720683] [2023-12-22 01:11:02,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:02,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:02,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:02,608 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 01:11:02,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 01:11:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:02,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:02,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:02,758 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 01:11:02,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:02,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:02,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800720683] [2023-12-22 01:11:02,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800720683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:02,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:02,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:02,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141791654] [2023-12-22 01:11:02,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:02,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:02,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:02,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:02,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:02,760 INFO L87 Difference]: Start difference. First operand 3057 states and 4869 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:02,820 INFO L93 Difference]: Finished difference Result 7301 states and 11151 transitions. [2023-12-22 01:11:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:02,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-22 01:11:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:02,836 INFO L225 Difference]: With dead ends: 7301 [2023-12-22 01:11:02,836 INFO L226 Difference]: Without dead ends: 5035 [2023-12-22 01:11:02,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 01:11:02,840 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 1492 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1659 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 01:11:02,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:02,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2023-12-22 01:11:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5033. [2023-12-22 01:11:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5033 states, 5031 states have (on average 1.5275293182269927) internal successors, (7685), 5032 states have internal predecessors, (7685), 0 states have call successors, (0), 0 states 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 01:11:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 7685 transitions. [2023-12-22 01:11:02,927 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 7685 transitions. Word has length 55 [2023-12-22 01:11:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:02,927 INFO L495 AbstractCegarLoop]: Abstraction has 5033 states and 7685 transitions. [2023-12-22 01:11:02,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 01:11:02,927 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 7685 transitions. [2023-12-22 01:11:02,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 01:11:02,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:02,928 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] [2023-12-22 01:11:02,933 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 01:11:03,131 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 01:11:03,131 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:03,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:03,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2135574669, now seen corresponding path program 1 times [2023-12-22 01:11:03,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:03,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225397430] [2023-12-22 01:11:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:03,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:03,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:03,133 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 01:11:03,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:03,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:03,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:03,261 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 01:11:03,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:03,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:03,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225397430] [2023-12-22 01:11:03,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225397430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:03,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:03,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:11:03,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803463817] [2023-12-22 01:11:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:03,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:03,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:03,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:03,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:03,263 INFO L87 Difference]: Start difference. First operand 5033 states and 7685 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 01:11:34,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:34,870 INFO L93 Difference]: Finished difference Result 6537 states and 10558 transitions. [2023-12-22 01:11:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:34,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2023-12-22 01:11:34,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:34,900 INFO L225 Difference]: With dead ends: 6537 [2023-12-22 01:11:34,900 INFO L226 Difference]: Without dead ends: 5784 [2023-12-22 01:11:34,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 01:11:34,902 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 837 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:34,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 645 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 31.4s Time] [2023-12-22 01:11:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5784 states. [2023-12-22 01:11:34,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5784 to 5784. [2023-12-22 01:11:34,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5782 states have (on average 1.4859910065721205) internal successors, (8592), 5783 states have internal predecessors, (8592), 0 states have call successors, (0), 0 states 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 01:11:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 8592 transitions. [2023-12-22 01:11:34,997 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 8592 transitions. Word has length 60 [2023-12-22 01:11:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:34,997 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 8592 transitions. [2023-12-22 01:11:34,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 01:11:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 8592 transitions. [2023-12-22 01:11:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 01:11:35,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:35,000 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] [2023-12-22 01:11:35,012 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 01:11:35,203 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 01:11:35,203 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:35,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:35,204 INFO L85 PathProgramCache]: Analyzing trace with hash 285878162, now seen corresponding path program 1 times [2023-12-22 01:11:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486290696] [2023-12-22 01:11:35,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:35,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:35,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:35,205 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 01:11:35,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:35,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:11:35,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:35,935 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:35,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:36,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:36,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486290696] [2023-12-22 01:11:36,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486290696] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:36,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:36,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:11:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248015577] [2023-12-22 01:11:36,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:36,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:11:36,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:36,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:11:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:11:36,282 INFO L87 Difference]: Start difference. First operand 5784 states and 8592 transitions. Second operand has 16 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:11:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:37,850 INFO L93 Difference]: Finished difference Result 15122 states and 22101 transitions. [2023-12-22 01:11:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:11:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 0 states have call successors, (0), 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 73 [2023-12-22 01:11:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:37,869 INFO L225 Difference]: With dead ends: 15122 [2023-12-22 01:11:37,870 INFO L226 Difference]: Without dead ends: 12144 [2023-12-22 01:11:37,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:11:37,875 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 2171 mSDsluCounter, 10894 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 12437 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:37,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 12437 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:11:37,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12144 states. [2023-12-22 01:11:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12144 to 10024. [2023-12-22 01:11:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10024 states, 10022 states have (on average 1.471961684294552) internal successors, (14752), 10023 states have internal predecessors, (14752), 0 states have call successors, (0), 0 states 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 01:11:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10024 states to 10024 states and 14752 transitions. [2023-12-22 01:11:38,113 INFO L78 Accepts]: Start accepts. Automaton has 10024 states and 14752 transitions. Word has length 73 [2023-12-22 01:11:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:38,113 INFO L495 AbstractCegarLoop]: Abstraction has 10024 states and 14752 transitions. [2023-12-22 01:11:38,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 01:11:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 10024 states and 14752 transitions. [2023-12-22 01:11:38,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 01:11:38,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:38,116 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] [2023-12-22 01:11:38,122 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 01:11:38,320 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 01:11:38,320 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:38,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash 57238930, now seen corresponding path program 1 times [2023-12-22 01:11:38,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:38,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098033458] [2023-12-22 01:11:38,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:38,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:38,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:38,322 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 01:11:38,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:38,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:38,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:38,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:38,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:38,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098033458] [2023-12-22 01:11:38,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098033458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:38,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:38,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427479192] [2023-12-22 01:11:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:38,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:38,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:38,418 INFO L87 Difference]: Start difference. First operand 10024 states and 14752 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 01:11:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:38,513 INFO L93 Difference]: Finished difference Result 15998 states and 23557 transitions. [2023-12-22 01:11:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:38,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-22 01:11:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:38,524 INFO L225 Difference]: With dead ends: 15998 [2023-12-22 01:11:38,524 INFO L226 Difference]: Without dead ends: 7516 [2023-12-22 01:11:38,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 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 01:11:38,533 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3103 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 01:11:38,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3103 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2023-12-22 01:11:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 7509. [2023-12-22 01:11:38,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7509 states, 7507 states have (on average 1.4766218196350074) internal successors, (11085), 7508 states have internal predecessors, (11085), 0 states have call successors, (0), 0 states 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 01:11:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7509 states to 7509 states and 11085 transitions. [2023-12-22 01:11:38,713 INFO L78 Accepts]: Start accepts. Automaton has 7509 states and 11085 transitions. Word has length 73 [2023-12-22 01:11:38,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:38,713 INFO L495 AbstractCegarLoop]: Abstraction has 7509 states and 11085 transitions. [2023-12-22 01:11:38,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 01:11:38,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7509 states and 11085 transitions. [2023-12-22 01:11:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 01:11:38,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:38,714 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] [2023-12-22 01:11:38,728 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 01:11:38,920 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 01:11:38,920 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:38,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1433078630, now seen corresponding path program 1 times [2023-12-22 01:11:38,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:38,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718072938] [2023-12-22 01:11:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:38,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:38,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:38,922 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 01:11:38,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:38,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:38,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:39,029 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 01:11:39,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:39,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:39,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718072938] [2023-12-22 01:11:39,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718072938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:39,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:39,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:39,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526266622] [2023-12-22 01:11:39,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:39,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:39,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:39,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:39,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:39,031 INFO L87 Difference]: Start difference. First operand 7509 states and 11085 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 01:11:39,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:39,090 INFO L93 Difference]: Finished difference Result 10489 states and 15431 transitions. [2023-12-22 01:11:39,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:39,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2023-12-22 01:11:39,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:39,097 INFO L225 Difference]: With dead ends: 10489 [2023-12-22 01:11:39,097 INFO L226 Difference]: Without dead ends: 4535 [2023-12-22 01:11:39,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 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 01:11:39,102 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 43 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3088 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 01:11:39,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3088 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:39,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2023-12-22 01:11:39,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 4533. [2023-12-22 01:11:39,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4533 states, 4531 states have (on average 1.4771573604060915) internal successors, (6693), 4532 states have internal predecessors, (6693), 0 states have call successors, (0), 0 states 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 01:11:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 6693 transitions. [2023-12-22 01:11:39,208 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 6693 transitions. Word has length 75 [2023-12-22 01:11:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:39,208 INFO L495 AbstractCegarLoop]: Abstraction has 4533 states and 6693 transitions. [2023-12-22 01:11:39,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 01:11:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 6693 transitions. [2023-12-22 01:11:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 01:11:39,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:39,209 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] [2023-12-22 01:11:39,214 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 01:11:39,412 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 01:11:39,412 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:39,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1221061864, now seen corresponding path program 1 times [2023-12-22 01:11:39,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356326481] [2023-12-22 01:11:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:39,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:39,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:39,414 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 01:11:39,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 01:11:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:39,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:11:39,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:40,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:40,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356326481] [2023-12-22 01:11:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356326481] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:40,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:40,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:11:40,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869784050] [2023-12-22 01:11:40,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:40,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:11:40,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:11:40,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:11:40,369 INFO L87 Difference]: Start difference. First operand 4533 states and 6693 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 16 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:11:41,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:41,685 INFO L93 Difference]: Finished difference Result 12941 states and 18697 transitions. [2023-12-22 01:11:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:11:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 16 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-22 01:11:41,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:41,696 INFO L225 Difference]: With dead ends: 12941 [2023-12-22 01:11:41,697 INFO L226 Difference]: Without dead ends: 9963 [2023-12-22 01:11:41,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 136 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 01:11:41,701 INFO L413 NwaCegarLoop]: 1588 mSDtfsCounter, 5101 mSDsluCounter, 10899 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 12487 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:41,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 12487 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:11:41,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9963 states. [2023-12-22 01:11:41,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9963 to 7797. [2023-12-22 01:11:41,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7797 states, 7795 states have (on average 1.4405388069275176) internal successors, (11229), 7796 states have internal predecessors, (11229), 0 states have call successors, (0), 0 states 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 01:11:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7797 states to 7797 states and 11229 transitions. [2023-12-22 01:11:41,855 INFO L78 Accepts]: Start accepts. Automaton has 7797 states and 11229 transitions. Word has length 76 [2023-12-22 01:11:41,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:41,855 INFO L495 AbstractCegarLoop]: Abstraction has 7797 states and 11229 transitions. [2023-12-22 01:11:41,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.75) internal successors, (140), 16 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:11:41,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7797 states and 11229 transitions. [2023-12-22 01:11:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 01:11:41,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:41,857 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] [2023-12-22 01:11:41,862 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 01:11:42,062 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 01:11:42,062 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:42,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:42,062 INFO L85 PathProgramCache]: Analyzing trace with hash -864246036, now seen corresponding path program 1 times [2023-12-22 01:11:42,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:42,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342904218] [2023-12-22 01:11:42,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:42,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:42,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:42,064 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 01:11:42,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:42,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:42,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:42,163 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 01:11:42,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:42,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342904218] [2023-12-22 01:11:42,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342904218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:42,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312171763] [2023-12-22 01:11:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:42,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:42,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:42,165 INFO L87 Difference]: Start difference. First operand 7797 states and 11229 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 01:11:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:42,232 INFO L93 Difference]: Finished difference Result 10921 states and 15647 transitions. [2023-12-22 01:11:42,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:42,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 01:11:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:42,238 INFO L225 Difference]: With dead ends: 10921 [2023-12-22 01:11:42,239 INFO L226 Difference]: Without dead ends: 4679 [2023-12-22 01:11:42,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 01:11:42,246 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 39 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3073 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 01:11:42,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3073 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:42,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4679 states. [2023-12-22 01:11:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4679 to 4677. [2023-12-22 01:11:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4677 states, 4675 states have (on average 1.4470588235294117) internal successors, (6765), 4676 states have internal predecessors, (6765), 0 states have call successors, (0), 0 states 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 01:11:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4677 states to 4677 states and 6765 transitions. [2023-12-22 01:11:42,354 INFO L78 Accepts]: Start accepts. Automaton has 4677 states and 6765 transitions. Word has length 78 [2023-12-22 01:11:42,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:42,354 INFO L495 AbstractCegarLoop]: Abstraction has 4677 states and 6765 transitions. [2023-12-22 01:11:42,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 01:11:42,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4677 states and 6765 transitions. [2023-12-22 01:11:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-22 01:11:42,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:42,355 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] [2023-12-22 01:11:42,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-22 01:11:42,558 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 01:11:42,558 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:42,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash -727176698, now seen corresponding path program 1 times [2023-12-22 01:11:42,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:42,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887227515] [2023-12-22 01:11:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:42,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:42,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:42,560 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 01:11:42,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:42,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:11:42,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:43,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:43,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887227515] [2023-12-22 01:11:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887227515] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:43,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:43,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:11:43,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833943813] [2023-12-22 01:11:43,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:43,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:11:43,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:43,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:11:43,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:11:43,475 INFO L87 Difference]: Start difference. First operand 4677 states and 6765 transitions. Second operand has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 01:11:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:44,509 INFO L93 Difference]: Finished difference Result 13085 states and 18433 transitions. [2023-12-22 01:11:44,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:11:44,510 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-22 01:11:44,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:44,519 INFO L225 Difference]: With dead ends: 13085 [2023-12-22 01:11:44,519 INFO L226 Difference]: Without dead ends: 9963 [2023-12-22 01:11:44,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:11:44,522 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 5079 mSDsluCounter, 9233 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 10803 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:44,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5079 Valid, 10803 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 01:11:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9963 states. [2023-12-22 01:11:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9963 to 8085. [2023-12-22 01:11:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8085 states, 8083 states have (on average 1.4070270939007794) internal successors, (11373), 8084 states have internal predecessors, (11373), 0 states have call successors, (0), 0 states 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 01:11:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8085 states to 8085 states and 11373 transitions. [2023-12-22 01:11:44,713 INFO L78 Accepts]: Start accepts. Automaton has 8085 states and 11373 transitions. Word has length 79 [2023-12-22 01:11:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:44,714 INFO L495 AbstractCegarLoop]: Abstraction has 8085 states and 11373 transitions. [2023-12-22 01:11:44,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 01:11:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8085 states and 11373 transitions. [2023-12-22 01:11:44,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 01:11:44,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:44,715 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] [2023-12-22 01:11:44,720 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 01:11:44,916 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 01:11:44,916 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:44,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1769411162, now seen corresponding path program 1 times [2023-12-22 01:11:44,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:44,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878284755] [2023-12-22 01:11:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:44,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:44,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:44,918 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 01:11:44,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:44,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:44,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:45,024 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 01:11:45,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:45,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:45,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878284755] [2023-12-22 01:11:45,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878284755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:45,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:45,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:45,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146775284] [2023-12-22 01:11:45,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:45,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:45,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:45,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:45,028 INFO L87 Difference]: Start difference. First operand 8085 states and 11373 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 01:11:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:45,106 INFO L93 Difference]: Finished difference Result 11353 states and 15863 transitions. [2023-12-22 01:11:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:45,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-22 01:11:45,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:45,111 INFO L225 Difference]: With dead ends: 11353 [2023-12-22 01:11:45,111 INFO L226 Difference]: Without dead ends: 4823 [2023-12-22 01:11:45,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 01:11:45,116 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 35 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3058 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 01:11:45,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3058 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:45,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4823 states. [2023-12-22 01:11:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4823 to 4821. [2023-12-22 01:11:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4821 states, 4819 states have (on average 1.418759078647022) internal successors, (6837), 4820 states have internal predecessors, (6837), 0 states have call successors, (0), 0 states 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 01:11:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4821 states to 4821 states and 6837 transitions. [2023-12-22 01:11:45,195 INFO L78 Accepts]: Start accepts. Automaton has 4821 states and 6837 transitions. Word has length 81 [2023-12-22 01:11:45,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:45,195 INFO L495 AbstractCegarLoop]: Abstraction has 4821 states and 6837 transitions. [2023-12-22 01:11:45,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 01:11:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4821 states and 6837 transitions. [2023-12-22 01:11:45,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-22 01:11:45,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:45,196 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] [2023-12-22 01:11:45,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 01:11:45,399 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 01:11:45,399 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:45,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash 651819404, now seen corresponding path program 1 times [2023-12-22 01:11:45,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:45,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324132254] [2023-12-22 01:11:45,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:45,400 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 01:11:45,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:45,401 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 01:11:45,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 01:11:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:45,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:11:45,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:46,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:46,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:46,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324132254] [2023-12-22 01:11:46,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324132254] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:46,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:46,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:11:46,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233583275] [2023-12-22 01:11:46,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:46,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:11:46,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:46,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:11:46,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:11:46,333 INFO L87 Difference]: Start difference. First operand 4821 states and 6837 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 01:11:47,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:47,489 INFO L93 Difference]: Finished difference Result 13229 states and 18169 transitions. [2023-12-22 01:11:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:11:47,490 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 82 [2023-12-22 01:11:47,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:47,497 INFO L225 Difference]: With dead ends: 13229 [2023-12-22 01:11:47,497 INFO L226 Difference]: Without dead ends: 9963 [2023-12-22 01:11:47,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:11:47,499 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1933 mSDsluCounter, 12257 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 13809 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:47,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 13809 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 01:11:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9963 states. [2023-12-22 01:11:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9963 to 8373. [2023-12-22 01:11:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8373 states, 8371 states have (on average 1.375821287779238) internal successors, (11517), 8372 states have internal predecessors, (11517), 0 states have call successors, (0), 0 states 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 01:11:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8373 states to 8373 states and 11517 transitions. [2023-12-22 01:11:47,665 INFO L78 Accepts]: Start accepts. Automaton has 8373 states and 11517 transitions. Word has length 82 [2023-12-22 01:11:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:47,665 INFO L495 AbstractCegarLoop]: Abstraction has 8373 states and 11517 transitions. [2023-12-22 01:11:47,665 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 01:11:47,665 INFO L276 IsEmpty]: Start isEmpty. Operand 8373 states and 11517 transitions. [2023-12-22 01:11:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-22 01:11:47,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:47,666 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] [2023-12-22 01:11:47,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 01:11:47,869 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 01:11:47,869 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:47,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash -971535880, now seen corresponding path program 1 times [2023-12-22 01:11:47,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:47,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056689226] [2023-12-22 01:11:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:47,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:47,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:47,871 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 01:11:47,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:47,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:11:47,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:47,977 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 01:11:47,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:11:47,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:47,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056689226] [2023-12-22 01:11:47,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056689226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:11:47,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:11:47,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:11:47,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495850653] [2023-12-22 01:11:47,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:11:47,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:11:47,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:47,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:11:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:11:47,978 INFO L87 Difference]: Start difference. First operand 8373 states and 11517 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 01:11:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:48,096 INFO L93 Difference]: Finished difference Result 11705 states and 15952 transitions. [2023-12-22 01:11:48,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:11:48,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-22 01:11:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:48,100 INFO L225 Difference]: With dead ends: 11705 [2023-12-22 01:11:48,100 INFO L226 Difference]: Without dead ends: 4887 [2023-12-22 01:11:48,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 01:11:48,105 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 31 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3043 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 01:11:48,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3043 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:48,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4887 states. [2023-12-22 01:11:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4887 to 4885. [2023-12-22 01:11:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4885 states, 4883 states have (on average 1.3891050583657587) internal successors, (6783), 4884 states have internal predecessors, (6783), 0 states have call successors, (0), 0 states 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 01:11:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 6783 transitions. [2023-12-22 01:11:48,191 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 6783 transitions. Word has length 84 [2023-12-22 01:11:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:48,192 INFO L495 AbstractCegarLoop]: Abstraction has 4885 states and 6783 transitions. [2023-12-22 01:11:48,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 01:11:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 6783 transitions. [2023-12-22 01:11:48,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-22 01:11:48,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:48,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:11:48,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-22 01:11:48,395 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 01:11:48,395 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:48,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash 504882810, now seen corresponding path program 1 times [2023-12-22 01:11:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:48,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602256960] [2023-12-22 01:11:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:48,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:48,397 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 01:11:48,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:48,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:11:48,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:49,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:49,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:49,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602256960] [2023-12-22 01:11:49,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602256960] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:49,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:49,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:11:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144142632] [2023-12-22 01:11:49,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:49,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:11:49,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:49,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:11:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:11:49,375 INFO L87 Difference]: Start difference. First operand 4885 states and 6783 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 01:11:50,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:50,278 INFO L93 Difference]: Finished difference Result 11123 states and 14906 transitions. [2023-12-22 01:11:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:11:50,279 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 85 [2023-12-22 01:11:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:50,284 INFO L225 Difference]: With dead ends: 11123 [2023-12-22 01:11:50,284 INFO L226 Difference]: Without dead ends: 7793 [2023-12-22 01:11:50,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 154 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 01:11:50,287 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 1986 mSDsluCounter, 9167 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 10701 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:50,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 10701 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 01:11:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2023-12-22 01:11:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 7263. [2023-12-22 01:11:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7263 states, 7261 states have (on average 1.3491254648120095) internal successors, (9796), 7262 states have internal predecessors, (9796), 0 states have call successors, (0), 0 states 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 01:11:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7263 states to 7263 states and 9796 transitions. [2023-12-22 01:11:50,432 INFO L78 Accepts]: Start accepts. Automaton has 7263 states and 9796 transitions. Word has length 85 [2023-12-22 01:11:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:50,432 INFO L495 AbstractCegarLoop]: Abstraction has 7263 states and 9796 transitions. [2023-12-22 01:11:50,432 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 01:11:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand 7263 states and 9796 transitions. [2023-12-22 01:11:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 01:11:50,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:50,433 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] [2023-12-22 01:11:50,436 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 01:11:50,636 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 01:11:50,636 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:50,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1071010638, now seen corresponding path program 1 times [2023-12-22 01:11:50,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524937625] [2023-12-22 01:11:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:50,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:50,637 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 01:11:50,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:50,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:11:50,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:11:50,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:11:50,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:50,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524937625] [2023-12-22 01:11:50,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524937625] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:50,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:50,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:11:50,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946818127] [2023-12-22 01:11:50,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:50,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:11:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:50,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:11:50,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:11:50,929 INFO L87 Difference]: Start difference. First operand 7263 states and 9796 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 01:11:51,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:11:51,390 INFO L93 Difference]: Finished difference Result 23587 states and 30552 transitions. [2023-12-22 01:11:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:11:51,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 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 87 [2023-12-22 01:11:51,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:11:51,405 INFO L225 Difference]: With dead ends: 23587 [2023-12-22 01:11:51,405 INFO L226 Difference]: Without dead ends: 17879 [2023-12-22 01:11:51,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 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 01:11:51,409 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1575 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:11:51,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 3257 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:11:51,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17879 states. [2023-12-22 01:11:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17879 to 17457. [2023-12-22 01:11:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17457 states, 17455 states have (on average 1.2602692638212547) internal successors, (21998), 17456 states have internal predecessors, (21998), 0 states have call successors, (0), 0 states 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 01:11:51,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17457 states to 17457 states and 21998 transitions. [2023-12-22 01:11:51,864 INFO L78 Accepts]: Start accepts. Automaton has 17457 states and 21998 transitions. Word has length 87 [2023-12-22 01:11:51,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:11:51,864 INFO L495 AbstractCegarLoop]: Abstraction has 17457 states and 21998 transitions. [2023-12-22 01:11:51,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 01:11:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 17457 states and 21998 transitions. [2023-12-22 01:11:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 01:11:51,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:11:51,870 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:11:51,873 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 01:11:52,073 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 01:11:52,073 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:11:52,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:11:52,073 INFO L85 PathProgramCache]: Analyzing trace with hash 418213508, now seen corresponding path program 1 times [2023-12-22 01:11:52,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:11:52,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289342737] [2023-12-22 01:11:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:11:52,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:11:52,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:11:52,075 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 01:11:52,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:11:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:11:52,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:11:52,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:11:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:52,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:11:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:11:53,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:11:53,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289342737] [2023-12-22 01:11:53,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289342737] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:11:53,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:11:53,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:11:53,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039603649] [2023-12-22 01:11:53,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:11:53,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:11:53,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:11:53,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:11:53,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:11:53,059 INFO L87 Difference]: Start difference. First operand 17457 states and 21998 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:25,080 INFO L93 Difference]: Finished difference Result 23540 states and 31973 transitions. [2023-12-22 01:13:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 01:13:25,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-22 01:13:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:25,097 INFO L225 Difference]: With dead ends: 23540 [2023-12-22 01:13:25,098 INFO L226 Difference]: Without dead ends: 22036 [2023-12-22 01:13:25,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:13:25,101 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 5999 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 8089 mSolverCounterSat, 3329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5999 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 11418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3329 IncrementalHoareTripleChecker+Valid, 8089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:25,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5999 Valid, 424 Invalid, 11418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3329 Valid, 8089 Invalid, 0 Unknown, 0 Unchecked, 91.1s Time] [2023-12-22 01:13:25,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22036 states. [2023-12-22 01:13:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22036 to 20461. [2023-12-22 01:13:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20461 states, 20459 states have (on average 1.263111589031722) internal successors, (25842), 20460 states have internal predecessors, (25842), 0 states have call successors, (0), 0 states 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 01:13:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20461 states to 20461 states and 25842 transitions. [2023-12-22 01:13:25,669 INFO L78 Accepts]: Start accepts. Automaton has 20461 states and 25842 transitions. Word has length 131 [2023-12-22 01:13:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:25,669 INFO L495 AbstractCegarLoop]: Abstraction has 20461 states and 25842 transitions. [2023-12-22 01:13:25,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 20461 states and 25842 transitions. [2023-12-22 01:13:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 01:13:25,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:25,674 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:25,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-22 01:13:25,876 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 01:13:25,877 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:25,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash 981905306, now seen corresponding path program 1 times [2023-12-22 01:13:25,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:25,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958374663] [2023-12-22 01:13:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:13:25,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:13:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:25,879 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 01:13:25,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 01:13:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:13:25,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:13:25,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 46 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:27,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:27,628 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 46 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:27,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:27,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958374663] [2023-12-22 01:13:27,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958374663] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:27,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:27,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:13:27,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825747472] [2023-12-22 01:13:27,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:27,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:13:27,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:27,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:13:27,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:13:27,631 INFO L87 Difference]: Start difference. First operand 20461 states and 25842 transitions. Second operand has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 25 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 01:13:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:29,587 INFO L93 Difference]: Finished difference Result 31113 states and 39113 transitions. [2023-12-22 01:13:29,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:13:29,588 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 25 states have internal predecessors, (240), 0 states have call successors, (0), 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 132 [2023-12-22 01:13:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:29,605 INFO L225 Difference]: With dead ends: 31113 [2023-12-22 01:13:29,606 INFO L226 Difference]: Without dead ends: 20679 [2023-12-22 01:13:29,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 01:13:29,613 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 18036 mSDsluCounter, 7820 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18036 SdHoareTripleChecker+Valid, 9344 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:29,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18036 Valid, 9344 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:13:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20679 states. [2023-12-22 01:13:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20679 to 20461. [2023-12-22 01:13:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20461 states, 20459 states have (on average 1.2523094970428663) internal successors, (25621), 20460 states have internal predecessors, (25621), 0 states have call successors, (0), 0 states 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 01:13:30,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20461 states to 20461 states and 25621 transitions. [2023-12-22 01:13:30,271 INFO L78 Accepts]: Start accepts. Automaton has 20461 states and 25621 transitions. Word has length 132 [2023-12-22 01:13:30,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:30,272 INFO L495 AbstractCegarLoop]: Abstraction has 20461 states and 25621 transitions. [2023-12-22 01:13:30,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.23076923076923) internal successors, (240), 25 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 01:13:30,272 INFO L276 IsEmpty]: Start isEmpty. Operand 20461 states and 25621 transitions. [2023-12-22 01:13:30,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 01:13:30,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:30,276 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:13:30,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 01:13:30,480 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 01:13:30,480 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:30,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:30,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1713206190, now seen corresponding path program 1 times [2023-12-22 01:13:30,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:30,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005085382] [2023-12-22 01:13:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:13:30,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:13:30,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:30,482 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 01:13:30,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 01:13:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:13:30,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:13:30,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:31,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:32,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:32,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005085382] [2023-12-22 01:13:32,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005085382] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:32,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:32,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:13:32,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382937846] [2023-12-22 01:13:32,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:32,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:13:32,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:32,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:13:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:13:32,227 INFO L87 Difference]: Start difference. First operand 20461 states and 25621 transitions. Second operand has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:34,403 INFO L93 Difference]: Finished difference Result 30121 states and 37636 transitions. [2023-12-22 01:13:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:13:34,404 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-22 01:13:34,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:34,423 INFO L225 Difference]: With dead ends: 30121 [2023-12-22 01:13:34,423 INFO L226 Difference]: Without dead ends: 23247 [2023-12-22 01:13:34,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 240 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 01:13:34,427 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 15196 mSDsluCounter, 9427 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15196 SdHoareTripleChecker+Valid, 10951 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:34,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15196 Valid, 10951 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:13:34,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23247 states. [2023-12-22 01:13:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23247 to 20461. [2023-12-22 01:13:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20461 states, 20459 states have (on average 1.2472261596363459) internal successors, (25517), 20460 states have internal predecessors, (25517), 0 states have call successors, (0), 0 states 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 01:13:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20461 states to 20461 states and 25517 transitions. [2023-12-22 01:13:35,064 INFO L78 Accepts]: Start accepts. Automaton has 20461 states and 25517 transitions. Word has length 133 [2023-12-22 01:13:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:35,065 INFO L495 AbstractCegarLoop]: Abstraction has 20461 states and 25517 transitions. [2023-12-22 01:13:35,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 20461 states and 25517 transitions. [2023-12-22 01:13:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-22 01:13:35,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:35,069 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:13:35,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 01:13:35,273 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 01:13:35,273 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:35,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1165065386, now seen corresponding path program 1 times [2023-12-22 01:13:35,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:35,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042176384] [2023-12-22 01:13:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:13:35,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:13:35,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:35,275 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 01:13:35,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:13:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:13:35,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:13:35,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 30 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:36,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 30 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:37,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:37,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042176384] [2023-12-22 01:13:37,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042176384] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:37,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:37,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:13:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287161470] [2023-12-22 01:13:37,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:37,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:13:37,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:37,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:13:37,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:13:37,066 INFO L87 Difference]: Start difference. First operand 20461 states and 25517 transitions. Second operand has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:39,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:39,441 INFO L93 Difference]: Finished difference Result 29089 states and 36168 transitions. [2023-12-22 01:13:39,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:13:39,441 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-22 01:13:39,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:39,509 INFO L225 Difference]: With dead ends: 29089 [2023-12-22 01:13:39,509 INFO L226 Difference]: Without dead ends: 22455 [2023-12-22 01:13:39,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 242 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 01:13:39,514 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 15244 mSDsluCounter, 7966 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15244 SdHoareTripleChecker+Valid, 9490 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:39,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15244 Valid, 9490 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:13:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22455 states. [2023-12-22 01:13:40,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22455 to 20461. [2023-12-22 01:13:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20461 states, 20459 states have (on average 1.2419473092526516) internal successors, (25409), 20460 states have internal predecessors, (25409), 0 states have call successors, (0), 0 states 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 01:13:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20461 states to 20461 states and 25409 transitions. [2023-12-22 01:13:40,222 INFO L78 Accepts]: Start accepts. Automaton has 20461 states and 25409 transitions. Word has length 134 [2023-12-22 01:13:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:40,222 INFO L495 AbstractCegarLoop]: Abstraction has 20461 states and 25409 transitions. [2023-12-22 01:13:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 20461 states and 25409 transitions. [2023-12-22 01:13:40,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 01:13:40,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:40,227 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:13:40,232 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 01:13:40,427 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 01:13:40,427 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:40,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:40,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1487552498, now seen corresponding path program 1 times [2023-12-22 01:13:40,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:40,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058199111] [2023-12-22 01:13:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:13:40,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:13:40,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:40,429 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 01:13:40,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:13:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:13:40,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:13:40,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 30 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:41,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 30 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:42,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:42,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058199111] [2023-12-22 01:13:42,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058199111] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:42,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:42,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:13:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925219842] [2023-12-22 01:13:42,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:42,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:13:42,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:13:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:13:42,487 INFO L87 Difference]: Start difference. First operand 20461 states and 25409 transitions. Second operand has 26 states, 26 states have (on average 9.807692307692308) internal successors, (255), 26 states have internal predecessors, (255), 0 states have call successors, (0), 0 states 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 01:13:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:48,557 INFO L93 Difference]: Finished difference Result 31809 states and 39226 transitions. [2023-12-22 01:13:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:13:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.807692307692308) internal successors, (255), 26 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-22 01:13:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:48,582 INFO L225 Difference]: With dead ends: 31809 [2023-12-22 01:13:48,582 INFO L226 Difference]: Without dead ends: 28943 [2023-12-22 01:13:48,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:13:48,587 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 5257 mSDsluCounter, 22365 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5257 SdHoareTripleChecker+Valid, 24007 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:48,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5257 Valid, 24007 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 01:13:48,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28943 states. [2023-12-22 01:13:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28943 to 15517. [2023-12-22 01:13:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15517 states, 15515 states have (on average 1.255301321301966) internal successors, (19476), 15516 states have internal predecessors, (19476), 0 states have call successors, (0), 0 states 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 01:13:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15517 states to 15517 states and 19476 transitions. [2023-12-22 01:13:49,305 INFO L78 Accepts]: Start accepts. Automaton has 15517 states and 19476 transitions. Word has length 135 [2023-12-22 01:13:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:49,305 INFO L495 AbstractCegarLoop]: Abstraction has 15517 states and 19476 transitions. [2023-12-22 01:13:49,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.807692307692308) internal successors, (255), 26 states have internal predecessors, (255), 0 states have call successors, (0), 0 states 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 01:13:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 15517 states and 19476 transitions. [2023-12-22 01:13:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 01:13:49,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:49,308 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:13:49,311 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 01:13:49,508 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 01:13:49,509 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:49,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:49,509 INFO L85 PathProgramCache]: Analyzing trace with hash -758128962, now seen corresponding path program 1 times [2023-12-22 01:13:49,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:49,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752715624] [2023-12-22 01:13:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:13:49,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:13:49,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:49,511 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 01:13:49,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:13:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:13:49,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:13:49,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:50,690 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:50,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:51,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752715624] [2023-12-22 01:13:51,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752715624] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:51,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:51,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:13:51,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443057196] [2023-12-22 01:13:51,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:51,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:13:51,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:51,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:13:51,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:13:51,115 INFO L87 Difference]: Start difference. First operand 15517 states and 19476 transitions. Second operand has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 25 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:53,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:13:53,162 INFO L93 Difference]: Finished difference Result 20867 states and 26019 transitions. [2023-12-22 01:13:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:13:53,163 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 25 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-22 01:13:53,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:13:53,177 INFO L225 Difference]: With dead ends: 20867 [2023-12-22 01:13:53,178 INFO L226 Difference]: Without dead ends: 16335 [2023-12-22 01:13:53,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 244 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 01:13:53,182 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 14996 mSDsluCounter, 6434 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14996 SdHoareTripleChecker+Valid, 7958 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:13:53,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14996 Valid, 7958 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 01:13:53,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16335 states. [2023-12-22 01:13:53,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16335 to 15517. [2023-12-22 01:13:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15517 states, 15515 states have (on average 1.2501450209474703) internal successors, (19396), 15516 states have internal predecessors, (19396), 0 states have call successors, (0), 0 states 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 01:13:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15517 states to 15517 states and 19396 transitions. [2023-12-22 01:13:53,750 INFO L78 Accepts]: Start accepts. Automaton has 15517 states and 19396 transitions. Word has length 135 [2023-12-22 01:13:53,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:13:53,750 INFO L495 AbstractCegarLoop]: Abstraction has 15517 states and 19396 transitions. [2023-12-22 01:13:53,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 25 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:13:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand 15517 states and 19396 transitions. [2023-12-22 01:13:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 01:13:53,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:13:53,753 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:13:53,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 01:13:53,953 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 01:13:53,953 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:13:53,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:13:53,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2122535610, now seen corresponding path program 1 times [2023-12-22 01:13:53,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:13:53,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683118514] [2023-12-22 01:13:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:13:53,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:13:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:13:53,955 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 01:13:53,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:13:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:13:54,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:13:54,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:13:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:55,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:13:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:13:56,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:13:56,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683118514] [2023-12-22 01:13:56,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683118514] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:13:56,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:13:56,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:13:56,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015380532] [2023-12-22 01:13:56,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:13:56,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:13:56,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:13:56,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:13:56,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:13:56,031 INFO L87 Difference]: Start difference. First operand 15517 states and 19396 transitions. Second operand has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 01:14:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:14:02,108 INFO L93 Difference]: Finished difference Result 23269 states and 28603 transitions. [2023-12-22 01:14:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:14:02,109 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-22 01:14:02,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:14:02,126 INFO L225 Difference]: With dead ends: 23269 [2023-12-22 01:14:02,126 INFO L226 Difference]: Without dead ends: 17971 [2023-12-22 01:14:02,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:14:02,132 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 3583 mSDsluCounter, 23475 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 25084 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:14:02,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3583 Valid, 25084 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 01:14:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17971 states. [2023-12-22 01:14:02,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17971 to 11387. [2023-12-22 01:14:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11387 states, 11385 states have (on average 1.2655248133509003) internal successors, (14408), 11386 states have internal predecessors, (14408), 0 states have call successors, (0), 0 states 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 01:14:02,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11387 states to 11387 states and 14408 transitions. [2023-12-22 01:14:02,602 INFO L78 Accepts]: Start accepts. Automaton has 11387 states and 14408 transitions. Word has length 136 [2023-12-22 01:14:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:14:02,603 INFO L495 AbstractCegarLoop]: Abstraction has 11387 states and 14408 transitions. [2023-12-22 01:14:02,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 01:14:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 11387 states and 14408 transitions. [2023-12-22 01:14:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 01:14:02,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:14:02,604 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:14:02,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 01:14:02,805 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 01:14:02,805 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:14:02,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:14:02,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1817726114, now seen corresponding path program 1 times [2023-12-22 01:14:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:14:02,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772386975] [2023-12-22 01:14:02,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:14:02,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:14:02,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:14:02,807 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 01:14:02,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:14:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:14:02,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:14:02,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:14:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:04,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:14:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:04,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:14:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772386975] [2023-12-22 01:14:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772386975] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:14:04,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:14:04,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:14:04,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474769956] [2023-12-22 01:14:04,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:14:04,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:14:04,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:14:04,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:14:04,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:14:04,912 INFO L87 Difference]: Start difference. First operand 11387 states and 14408 transitions. Second operand has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 01:14:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:14:11,400 INFO L93 Difference]: Finished difference Result 25377 states and 31055 transitions. [2023-12-22 01:14:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:14:11,400 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-22 01:14:11,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:14:11,422 INFO L225 Difference]: With dead ends: 25377 [2023-12-22 01:14:11,423 INFO L226 Difference]: Without dead ends: 23767 [2023-12-22 01:14:11,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:14:11,430 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 5247 mSDsluCounter, 23725 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5247 SdHoareTripleChecker+Valid, 25354 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:14:11,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5247 Valid, 25354 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 01:14:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23767 states. [2023-12-22 01:14:12,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23767 to 20446. [2023-12-22 01:14:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20446 states, 20444 states have (on average 1.2306300136959498) internal successors, (25159), 20445 states have internal predecessors, (25159), 0 states have call successors, (0), 0 states 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 01:14:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20446 states to 20446 states and 25159 transitions. [2023-12-22 01:14:12,386 INFO L78 Accepts]: Start accepts. Automaton has 20446 states and 25159 transitions. Word has length 136 [2023-12-22 01:14:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:14:12,386 INFO L495 AbstractCegarLoop]: Abstraction has 20446 states and 25159 transitions. [2023-12-22 01:14:12,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 01:14:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 20446 states and 25159 transitions. [2023-12-22 01:14:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 01:14:12,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:14:12,389 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:14:12,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-22 01:14:12,593 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 01:14:12,593 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:14:12,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:14:12,593 INFO L85 PathProgramCache]: Analyzing trace with hash 466156766, now seen corresponding path program 1 times [2023-12-22 01:14:12,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:14:12,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440906479] [2023-12-22 01:14:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:14:12,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:14:12,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:14:12,595 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 01:14:12,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:14:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:14:12,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:14:12,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:14:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:14,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:14:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:14,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:14:14,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440906479] [2023-12-22 01:14:14,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440906479] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:14:14,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:14:14,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:14:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473738336] [2023-12-22 01:14:14,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:14:14,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:14:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:14:14,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:14:14,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:14:14,590 INFO L87 Difference]: Start difference. First operand 20446 states and 25159 transitions. Second operand has 26 states, 26 states have (on average 9.653846153846153) internal successors, (251), 26 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 01:14:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:14:21,595 INFO L93 Difference]: Finished difference Result 33348 states and 40519 transitions. [2023-12-22 01:14:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 01:14:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.653846153846153) internal successors, (251), 26 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-22 01:14:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:14:21,622 INFO L225 Difference]: With dead ends: 33348 [2023-12-22 01:14:21,623 INFO L226 Difference]: Without dead ends: 29270 [2023-12-22 01:14:21,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 01:14:21,631 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 3680 mSDsluCounter, 24038 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3680 SdHoareTripleChecker+Valid, 25684 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:14:21,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3680 Valid, 25684 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 01:14:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29270 states. [2023-12-22 01:14:22,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29270 to 23784. [2023-12-22 01:14:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23784 states, 23782 states have (on average 1.2224371373307543) internal successors, (29072), 23783 states have internal predecessors, (29072), 0 states have call successors, (0), 0 states 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 01:14:22,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23784 states to 23784 states and 29072 transitions. [2023-12-22 01:14:22,789 INFO L78 Accepts]: Start accepts. Automaton has 23784 states and 29072 transitions. Word has length 136 [2023-12-22 01:14:22,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:14:22,790 INFO L495 AbstractCegarLoop]: Abstraction has 23784 states and 29072 transitions. [2023-12-22 01:14:22,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.653846153846153) internal successors, (251), 26 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 01:14:22,790 INFO L276 IsEmpty]: Start isEmpty. Operand 23784 states and 29072 transitions. [2023-12-22 01:14:22,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 01:14:22,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:14:22,793 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:14:22,797 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 01:14:22,996 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 01:14:22,996 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:14:22,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:14:22,997 INFO L85 PathProgramCache]: Analyzing trace with hash -825573446, now seen corresponding path program 1 times [2023-12-22 01:14:22,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:14:22,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616799362] [2023-12-22 01:14:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:14:22,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:14:22,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:14:22,998 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 01:14:22,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:14:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:14:23,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:14:23,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:14:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:24,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:14:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 49 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:25,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:14:25,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616799362] [2023-12-22 01:14:25,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616799362] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:14:25,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:14:25,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:14:25,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241947397] [2023-12-22 01:14:25,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:14:25,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:14:25,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:14:25,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:14:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:14:25,027 INFO L87 Difference]: Start difference. First operand 23784 states and 29072 transitions. Second operand has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 26 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:14:35,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:14:35,374 INFO L93 Difference]: Finished difference Result 61109 states and 72624 transitions. [2023-12-22 01:14:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:14:35,374 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 26 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-22 01:14:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:14:35,429 INFO L225 Difference]: With dead ends: 61109 [2023-12-22 01:14:35,429 INFO L226 Difference]: Without dead ends: 55372 [2023-12-22 01:14:35,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:14:35,436 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 3687 mSDsluCounter, 25855 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3687 SdHoareTripleChecker+Valid, 27522 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:14:35,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3687 Valid, 27522 Invalid, 3033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-22 01:14:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55372 states. [2023-12-22 01:14:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55372 to 41657. [2023-12-22 01:14:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41657 states, 41655 states have (on average 1.1994718521185932) internal successors, (49964), 41656 states have internal predecessors, (49964), 0 states have call successors, (0), 0 states 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 01:14:37,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41657 states to 41657 states and 49964 transitions. [2023-12-22 01:14:37,870 INFO L78 Accepts]: Start accepts. Automaton has 41657 states and 49964 transitions. Word has length 136 [2023-12-22 01:14:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:14:37,870 INFO L495 AbstractCegarLoop]: Abstraction has 41657 states and 49964 transitions. [2023-12-22 01:14:37,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 26 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:14:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 41657 states and 49964 transitions. [2023-12-22 01:14:37,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 01:14:37,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:14:37,887 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:14:37,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 01:14:38,088 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 01:14:38,088 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:14:38,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:14:38,088 INFO L85 PathProgramCache]: Analyzing trace with hash -82459398, now seen corresponding path program 1 times [2023-12-22 01:14:38,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:14:38,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560184942] [2023-12-22 01:14:38,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:14:38,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:14:38,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:14:38,090 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 01:14:38,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:14:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:14:38,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:14:38,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:14:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:40,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:14:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 54 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:14:41,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:14:41,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560184942] [2023-12-22 01:14:41,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560184942] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:14:41,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:14:41,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:14:41,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463218305] [2023-12-22 01:14:41,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:14:41,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:14:41,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:14:41,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:14:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:14:41,590 INFO L87 Difference]: Start difference. First operand 41657 states and 49964 transitions. Second operand has 36 states, 36 states have (on average 9.944444444444445) internal successors, (358), 36 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:15:02,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:15:02,065 INFO L93 Difference]: Finished difference Result 55883 states and 66902 transitions. [2023-12-22 01:15:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 01:15:02,066 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.944444444444445) internal successors, (358), 36 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2023-12-22 01:15:02,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:15:02,119 INFO L225 Difference]: With dead ends: 55883 [2023-12-22 01:15:02,119 INFO L226 Difference]: Without dead ends: 52128 [2023-12-22 01:15:02,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4495 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 01:15:02,128 INFO L413 NwaCegarLoop]: 1744 mSDtfsCounter, 5392 mSDsluCounter, 38458 mSDsCounter, 0 mSdLazyCounter, 6633 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 40202 SdHoareTripleChecker+Invalid, 6660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:15:02,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5392 Valid, 40202 Invalid, 6660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 6633 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-22 01:15:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52128 states. [2023-12-22 01:15:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52128 to 24056. [2023-12-22 01:15:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24056 states, 24054 states have (on average 1.2176768936559408) internal successors, (29290), 24055 states have internal predecessors, (29290), 0 states have call successors, (0), 0 states 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 01:15:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24056 states to 24056 states and 29290 transitions. [2023-12-22 01:15:03,840 INFO L78 Accepts]: Start accepts. Automaton has 24056 states and 29290 transitions. Word has length 187 [2023-12-22 01:15:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:15:03,841 INFO L495 AbstractCegarLoop]: Abstraction has 24056 states and 29290 transitions. [2023-12-22 01:15:03,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.944444444444445) internal successors, (358), 36 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:15:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24056 states and 29290 transitions. [2023-12-22 01:15:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 01:15:03,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:15:03,850 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:15:03,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 01:15:04,053 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 01:15:04,053 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:15:04,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:15:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2071920250, now seen corresponding path program 2 times [2023-12-22 01:15:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:15:04,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591086670] [2023-12-22 01:15:04,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:15:04,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:15:04,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:15:04,055 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 01:15:04,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:15:04,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:15:04,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:15:04,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:15:04,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:15:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2023-12-22 01:15:05,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:15:05,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:15:05,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591086670] [2023-12-22 01:15:05,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591086670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:15:05,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:15:05,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:15:05,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966099601] [2023-12-22 01:15:05,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:15:05,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:15:05,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:15:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:15:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:05,818 INFO L87 Difference]: Start difference. First operand 24056 states and 29290 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:15:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:15:07,603 INFO L93 Difference]: Finished difference Result 32346 states and 39572 transitions. [2023-12-22 01:15:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:15:07,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2023-12-22 01:15:07,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:15:07,629 INFO L225 Difference]: With dead ends: 32346 [2023-12-22 01:15:07,629 INFO L226 Difference]: Without dead ends: 27740 [2023-12-22 01:15:07,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:07,636 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 3139 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:15:07,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 3364 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:15:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27740 states. [2023-12-22 01:15:09,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27740 to 24018. [2023-12-22 01:15:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24018 states, 24016 states have (on average 1.2109010659560293) internal successors, (29081), 24017 states have internal predecessors, (29081), 0 states have call successors, (0), 0 states 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 01:15:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24018 states to 24018 states and 29081 transitions. [2023-12-22 01:15:09,266 INFO L78 Accepts]: Start accepts. Automaton has 24018 states and 29081 transitions. Word has length 187 [2023-12-22 01:15:09,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:15:09,266 INFO L495 AbstractCegarLoop]: Abstraction has 24018 states and 29081 transitions. [2023-12-22 01:15:09,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:15:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 24018 states and 29081 transitions. [2023-12-22 01:15:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 01:15:09,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:15:09,275 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:15:09,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-22 01:15:09,478 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 01:15:09,478 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:15:09,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:15:09,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1868341474, now seen corresponding path program 2 times [2023-12-22 01:15:09,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:15:09,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346678288] [2023-12-22 01:15:09,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:15:09,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:15:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:15:09,480 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 01:15:09,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:15:09,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:15:09,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:15:09,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:15:09,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:15:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2023-12-22 01:15:11,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:15:11,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:15:11,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346678288] [2023-12-22 01:15:11,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346678288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:15:11,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:15:11,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:15:11,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713089] [2023-12-22 01:15:11,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:15:11,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:15:11,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:15:11,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:15:11,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:11,286 INFO L87 Difference]: Start difference. First operand 24018 states and 29081 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 01:15:13,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:15:13,019 INFO L93 Difference]: Finished difference Result 29894 states and 36466 transitions. [2023-12-22 01:15:13,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:15:13,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 187 [2023-12-22 01:15:13,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:15:13,050 INFO L225 Difference]: With dead ends: 29894 [2023-12-22 01:15:13,051 INFO L226 Difference]: Without dead ends: 28294 [2023-12-22 01:15:13,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:13,058 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 3184 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:15:13,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 3333 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:15:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28294 states. [2023-12-22 01:15:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28294 to 25284. [2023-12-22 01:15:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25284 states, 25282 states have (on average 1.2076971758563404) internal successors, (30533), 25283 states have internal predecessors, (30533), 0 states have call successors, (0), 0 states 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 01:15:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25284 states to 25284 states and 30533 transitions. [2023-12-22 01:15:14,799 INFO L78 Accepts]: Start accepts. Automaton has 25284 states and 30533 transitions. Word has length 187 [2023-12-22 01:15:14,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:15:14,799 INFO L495 AbstractCegarLoop]: Abstraction has 25284 states and 30533 transitions. [2023-12-22 01:15:14,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 01:15:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 25284 states and 30533 transitions. [2023-12-22 01:15:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 01:15:14,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:15:14,807 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:15:14,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 01:15:15,007 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 01:15:15,007 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:15:15,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:15:15,008 INFO L85 PathProgramCache]: Analyzing trace with hash 415541406, now seen corresponding path program 2 times [2023-12-22 01:15:15,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:15:15,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656118256] [2023-12-22 01:15:15,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:15:15,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:15:15,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:15:15,009 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 01:15:15,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:15:15,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:15:15,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:15:15,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:15:15,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:15:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-22 01:15:16,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:15:16,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:15:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656118256] [2023-12-22 01:15:16,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656118256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:15:16,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:15:16,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:15:16,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659515566] [2023-12-22 01:15:16,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:15:16,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:15:16,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:15:16,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:15:16,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:16,686 INFO L87 Difference]: Start difference. First operand 25284 states and 30533 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 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 01:15:18,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:15:18,493 INFO L93 Difference]: Finished difference Result 32794 states and 39959 transitions. [2023-12-22 01:15:18,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:15:18,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 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 187 [2023-12-22 01:15:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:15:18,517 INFO L225 Difference]: With dead ends: 32794 [2023-12-22 01:15:18,518 INFO L226 Difference]: Without dead ends: 29646 [2023-12-22 01:15:18,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:18,522 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 4628 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:15:18,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4628 Valid, 3330 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:15:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29646 states. [2023-12-22 01:15:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29646 to 27759. [2023-12-22 01:15:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27759 states, 27757 states have (on average 1.2023633677991137) internal successors, (33374), 27758 states have internal predecessors, (33374), 0 states have call successors, (0), 0 states 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 01:15:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27759 states to 27759 states and 33374 transitions. [2023-12-22 01:15:20,357 INFO L78 Accepts]: Start accepts. Automaton has 27759 states and 33374 transitions. Word has length 187 [2023-12-22 01:15:20,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:15:20,357 INFO L495 AbstractCegarLoop]: Abstraction has 27759 states and 33374 transitions. [2023-12-22 01:15:20,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 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 01:15:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 27759 states and 33374 transitions. [2023-12-22 01:15:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 01:15:20,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:15:20,366 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:15:20,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 01:15:20,566 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 01:15:20,567 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:15:20,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:15:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash -876188806, now seen corresponding path program 2 times [2023-12-22 01:15:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:15:20,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096714165] [2023-12-22 01:15:20,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:15:20,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:15:20,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:15:20,568 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 01:15:20,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:15:20,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:15:20,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:15:20,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:15:20,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:15:22,023 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-12-22 01:15:22,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:15:22,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:15:22,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096714165] [2023-12-22 01:15:22,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096714165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:15:22,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:15:22,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:15:22,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947429276] [2023-12-22 01:15:22,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:15:22,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:15:22,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:15:22,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:15:22,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:22,024 INFO L87 Difference]: Start difference. First operand 27759 states and 33374 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 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 01:15:24,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:15:24,099 INFO L93 Difference]: Finished difference Result 33731 states and 40871 transitions. [2023-12-22 01:15:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:15:24,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 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 187 [2023-12-22 01:15:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:15:24,129 INFO L225 Difference]: With dead ends: 33731 [2023-12-22 01:15:24,129 INFO L226 Difference]: Without dead ends: 31760 [2023-12-22 01:15:24,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:15:24,135 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1729 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:15:24,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 3403 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:15:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2023-12-22 01:15:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 29502. [2023-12-22 01:15:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29502 states, 29500 states have (on average 1.1995254237288135) internal successors, (35386), 29501 states have internal predecessors, (35386), 0 states have call successors, (0), 0 states 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 01:15:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29502 states to 29502 states and 35386 transitions. [2023-12-22 01:15:26,057 INFO L78 Accepts]: Start accepts. Automaton has 29502 states and 35386 transitions. Word has length 187 [2023-12-22 01:15:26,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:15:26,058 INFO L495 AbstractCegarLoop]: Abstraction has 29502 states and 35386 transitions. [2023-12-22 01:15:26,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 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 01:15:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 29502 states and 35386 transitions. [2023-12-22 01:15:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-22 01:15:26,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:15:26,066 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:15:26,072 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 01:15:26,269 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 01:15:26,269 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:15:26,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:15:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -800711852, now seen corresponding path program 1 times [2023-12-22 01:15:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:15:26,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631150169] [2023-12-22 01:15:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:15:26,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:15:26,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:15:26,272 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 01:15:26,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:15:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:15:26,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:15:26,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:15:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:15:28,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:15:29,776 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 38 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:15:29,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:15:29,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631150169] [2023-12-22 01:15:29,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631150169] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:15:29,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:15:29,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:15:29,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814509098] [2023-12-22 01:15:29,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:15:29,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:15:29,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:15:29,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:15:29,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:15:29,778 INFO L87 Difference]: Start difference. First operand 29502 states and 35386 transitions. Second operand has 36 states, 36 states have (on average 10.11111111111111) internal successors, (364), 36 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:15:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:15:51,396 INFO L93 Difference]: Finished difference Result 66771 states and 78584 transitions. [2023-12-22 01:15:51,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:15:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.11111111111111) internal successors, (364), 36 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2023-12-22 01:15:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:15:51,457 INFO L225 Difference]: With dead ends: 66771 [2023-12-22 01:15:51,457 INFO L226 Difference]: Without dead ends: 63725 [2023-12-22 01:15:51,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:15:51,467 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 2632 mSDsluCounter, 35477 mSDsCounter, 0 mSdLazyCounter, 6579 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2632 SdHoareTripleChecker+Valid, 37220 SdHoareTripleChecker+Invalid, 6602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 6579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:15:51,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2632 Valid, 37220 Invalid, 6602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 6579 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-22 01:15:51,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63725 states. [2023-12-22 01:15:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63725 to 31127. [2023-12-22 01:15:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31127 states, 31125 states have (on average 1.196016064257028) internal successors, (37226), 31126 states have internal predecessors, (37226), 0 states have call successors, (0), 0 states 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 01:15:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31127 states to 31127 states and 37226 transitions. [2023-12-22 01:15:53,931 INFO L78 Accepts]: Start accepts. Automaton has 31127 states and 37226 transitions. Word has length 188 [2023-12-22 01:15:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:15:53,931 INFO L495 AbstractCegarLoop]: Abstraction has 31127 states and 37226 transitions. [2023-12-22 01:15:53,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.11111111111111) internal successors, (364), 36 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:15:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 31127 states and 37226 transitions. [2023-12-22 01:15:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-22 01:15:53,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:15:53,939 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:15:53,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-22 01:15:54,139 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 01:15:54,139 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:15:54,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:15:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1280180692, now seen corresponding path program 1 times [2023-12-22 01:15:54,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:15:54,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927784873] [2023-12-22 01:15:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:15:54,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:15:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:15:54,141 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 01:15:54,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:15:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:15:54,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:15:54,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:15:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:15:56,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:15:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 70 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:15:57,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:15:57,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927784873] [2023-12-22 01:15:57,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927784873] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:15:57,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:15:57,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:15:57,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398275501] [2023-12-22 01:15:57,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:15:57,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:15:57,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:15:57,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:15:57,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:15:57,264 INFO L87 Difference]: Start difference. First operand 31127 states and 37226 transitions. Second operand has 36 states, 36 states have (on average 9.833333333333334) internal successors, (354), 36 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 01:16:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:16:22,342 INFO L93 Difference]: Finished difference Result 45694 states and 54257 transitions. [2023-12-22 01:16:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 01:16:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.833333333333334) internal successors, (354), 36 states have internal predecessors, (354), 0 states have call successors, (0), 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 188 [2023-12-22 01:16:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:16:22,378 INFO L225 Difference]: With dead ends: 45694 [2023-12-22 01:16:22,379 INFO L226 Difference]: Without dead ends: 39588 [2023-12-22 01:16:22,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6252 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 01:16:22,387 INFO L413 NwaCegarLoop]: 1767 mSDtfsCounter, 2469 mSDsluCounter, 39037 mSDsCounter, 0 mSdLazyCounter, 7355 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 40804 SdHoareTripleChecker+Invalid, 7385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 7355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:16:22,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 40804 Invalid, 7385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 7355 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-22 01:16:22,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39588 states. [2023-12-22 01:16:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39588 to 32566. [2023-12-22 01:16:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32566 states, 32564 states have (on average 1.1945092740449577) internal successors, (38898), 32565 states have internal predecessors, (38898), 0 states have call successors, (0), 0 states 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 01:16:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32566 states to 32566 states and 38898 transitions. [2023-12-22 01:16:24,922 INFO L78 Accepts]: Start accepts. Automaton has 32566 states and 38898 transitions. Word has length 188 [2023-12-22 01:16:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:16:24,922 INFO L495 AbstractCegarLoop]: Abstraction has 32566 states and 38898 transitions. [2023-12-22 01:16:24,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.833333333333334) internal successors, (354), 36 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 01:16:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 32566 states and 38898 transitions. [2023-12-22 01:16:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-22 01:16:24,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:16:24,930 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:16:24,938 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 01:16:25,134 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 01:16:25,134 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:16:25,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:16:25,134 INFO L85 PathProgramCache]: Analyzing trace with hash -108750216, now seen corresponding path program 1 times [2023-12-22 01:16:25,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:16:25,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069704759] [2023-12-22 01:16:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:16:25,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:16:25,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:16:25,136 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 01:16:25,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:16:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:16:25,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:16:25,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:16:27,283 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:16:27,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:16:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 86 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:16:28,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:16:28,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069704759] [2023-12-22 01:16:28,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069704759] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:16:28,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:16:28,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:16:28,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985441185] [2023-12-22 01:16:28,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:16:28,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:16:28,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:16:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:16:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:16:28,166 INFO L87 Difference]: Start difference. First operand 32566 states and 38898 transitions. Second operand has 36 states, 36 states have (on average 9.694444444444445) internal successors, (349), 36 states have internal predecessors, (349), 0 states have call successors, (0), 0 states 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 01:16:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:16:51,691 INFO L93 Difference]: Finished difference Result 48734 states and 57575 transitions. [2023-12-22 01:16:51,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:16:51,692 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.694444444444445) internal successors, (349), 36 states have internal predecessors, (349), 0 states have call successors, (0), 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 188 [2023-12-22 01:16:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:16:51,728 INFO L225 Difference]: With dead ends: 48734 [2023-12-22 01:16:51,728 INFO L226 Difference]: Without dead ends: 42144 [2023-12-22 01:16:51,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7024 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:16:51,737 INFO L413 NwaCegarLoop]: 1749 mSDtfsCounter, 7020 mSDsluCounter, 40115 mSDsCounter, 0 mSdLazyCounter, 7551 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7020 SdHoareTripleChecker+Valid, 41864 SdHoareTripleChecker+Invalid, 7581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 7551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:16:51,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7020 Valid, 41864 Invalid, 7581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 7551 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-22 01:16:51,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42144 states. [2023-12-22 01:16:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42144 to 33244. [2023-12-22 01:16:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33244 states, 33242 states have (on average 1.1930690090848926) internal successors, (39660), 33243 states have internal predecessors, (39660), 0 states have call successors, (0), 0 states 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 01:16:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33244 states to 33244 states and 39660 transitions. [2023-12-22 01:16:54,451 INFO L78 Accepts]: Start accepts. Automaton has 33244 states and 39660 transitions. Word has length 188 [2023-12-22 01:16:54,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:16:54,451 INFO L495 AbstractCegarLoop]: Abstraction has 33244 states and 39660 transitions. [2023-12-22 01:16:54,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.694444444444445) internal successors, (349), 36 states have internal predecessors, (349), 0 states have call successors, (0), 0 states 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 01:16:54,451 INFO L276 IsEmpty]: Start isEmpty. Operand 33244 states and 39660 transitions. [2023-12-22 01:16:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-22 01:16:54,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:16:54,458 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:16:54,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-22 01:16:54,662 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 01:16:54,662 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:16:54,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:16:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1893069950, now seen corresponding path program 1 times [2023-12-22 01:16:54,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:16:54,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822906117] [2023-12-22 01:16:54,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:16:54,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:16:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:16:54,665 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 01:16:54,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 01:16:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:16:54,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:16:54,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:16:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:16:56,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:16:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 32 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:16:57,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:16:57,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822906117] [2023-12-22 01:16:57,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822906117] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:16:57,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:16:57,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:16:57,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355549718] [2023-12-22 01:16:57,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:16:57,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:16:57,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:16:57,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:16:57,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:16:57,826 INFO L87 Difference]: Start difference. First operand 33244 states and 39660 transitions. Second operand has 36 states, 36 states have (on average 10.277777777777779) internal successors, (370), 36 states have internal predecessors, (370), 0 states have call successors, (0), 0 states 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 01:17:18,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:17:18,987 INFO L93 Difference]: Finished difference Result 77199 states and 90422 transitions. [2023-12-22 01:17:18,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:17:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.277777777777779) internal successors, (370), 36 states have internal predecessors, (370), 0 states have call successors, (0), 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 189 [2023-12-22 01:17:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:17:19,053 INFO L225 Difference]: With dead ends: 77199 [2023-12-22 01:17:19,054 INFO L226 Difference]: Without dead ends: 71061 [2023-12-22 01:17:19,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 01:17:19,064 INFO L413 NwaCegarLoop]: 1707 mSDtfsCounter, 7138 mSDsluCounter, 33087 mSDsCounter, 0 mSdLazyCounter, 5930 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7138 SdHoareTripleChecker+Valid, 34794 SdHoareTripleChecker+Invalid, 5955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:17:19,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7138 Valid, 34794 Invalid, 5955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 5930 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-22 01:17:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71061 states. [2023-12-22 01:17:24,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71061 to 62716. [2023-12-22 01:17:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62716 states, 62714 states have (on average 1.1758777944318652) internal successors, (73744), 62715 states have internal predecessors, (73744), 0 states have call successors, (0), 0 states 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 01:17:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62716 states to 62716 states and 73744 transitions. [2023-12-22 01:17:24,772 INFO L78 Accepts]: Start accepts. Automaton has 62716 states and 73744 transitions. Word has length 189 [2023-12-22 01:17:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:17:24,773 INFO L495 AbstractCegarLoop]: Abstraction has 62716 states and 73744 transitions. [2023-12-22 01:17:24,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.277777777777779) internal successors, (370), 36 states have internal predecessors, (370), 0 states have call successors, (0), 0 states 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 01:17:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 62716 states and 73744 transitions. [2023-12-22 01:17:24,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-22 01:17:24,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:17:24,803 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:17:24,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-22 01:17:25,003 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 01:17:25,004 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:17:25,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:17:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash -338951878, now seen corresponding path program 2 times [2023-12-22 01:17:25,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:17:25,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143588185] [2023-12-22 01:17:25,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:17:25,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:17:25,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:17:25,006 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 01:17:25,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:17:25,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:17:25,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:17:25,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:17:25,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:17:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2023-12-22 01:17:27,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:17:27,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:17:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143588185] [2023-12-22 01:17:27,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143588185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:17:27,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:17:27,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 01:17:27,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838813284] [2023-12-22 01:17:27,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:17:27,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:17:27,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:17:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:17:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:17:27,090 INFO L87 Difference]: Start difference. First operand 62716 states and 73744 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 01:17:32,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:17:32,781 INFO L93 Difference]: Finished difference Result 71281 states and 84505 transitions. [2023-12-22 01:17:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 01:17:32,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 238 [2023-12-22 01:17:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:17:32,842 INFO L225 Difference]: With dead ends: 71281 [2023-12-22 01:17:32,842 INFO L226 Difference]: Without dead ends: 67534 [2023-12-22 01:17:32,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:17:32,854 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1811 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:17:32,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 3343 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:17:32,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67534 states. [2023-12-22 01:17:38,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67534 to 65064. [2023-12-22 01:17:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65064 states, 65062 states have (on average 1.1744182472103533) internal successors, (76410), 65063 states have internal predecessors, (76410), 0 states have call successors, (0), 0 states 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 01:17:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65064 states to 65064 states and 76410 transitions. [2023-12-22 01:17:39,028 INFO L78 Accepts]: Start accepts. Automaton has 65064 states and 76410 transitions. Word has length 238 [2023-12-22 01:17:39,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:17:39,028 INFO L495 AbstractCegarLoop]: Abstraction has 65064 states and 76410 transitions. [2023-12-22 01:17:39,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 01:17:39,028 INFO L276 IsEmpty]: Start isEmpty. Operand 65064 states and 76410 transitions. [2023-12-22 01:17:39,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 01:17:39,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:17:39,061 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:17:39,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 01:17:39,261 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 01:17:39,262 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:17:39,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:17:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash -634274632, now seen corresponding path program 1 times [2023-12-22 01:17:39,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:17:39,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121314230] [2023-12-22 01:17:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:17:39,264 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 01:17:39,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:17:39,265 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 01:17:39,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:17:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:17:39,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:17:39,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:17:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 77 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:17:42,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:17:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 77 proven. 489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:17:43,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:17:43,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121314230] [2023-12-22 01:17:43,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121314230] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:17:43,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:17:43,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:17:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366244504] [2023-12-22 01:17:43,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:17:43,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:17:43,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:17:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:17:43,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:17:43,960 INFO L87 Difference]: Start difference. First operand 65064 states and 76410 transitions. Second operand has 46 states, 46 states have (on average 10.021739130434783) internal successors, (461), 46 states have internal predecessors, (461), 0 states have call successors, (0), 0 states 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 01:18:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:18:35,467 INFO L93 Difference]: Finished difference Result 82721 states and 96913 transitions. [2023-12-22 01:18:35,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-12-22 01:18:35,467 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.021739130434783) internal successors, (461), 46 states have internal predecessors, (461), 0 states have call successors, (0), 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 239 [2023-12-22 01:18:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:18:35,540 INFO L225 Difference]: With dead ends: 82721 [2023-12-22 01:18:35,540 INFO L226 Difference]: Without dead ends: 76626 [2023-12-22 01:18:35,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17857 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=6041, Invalid=50841, Unknown=0, NotChecked=0, Total=56882 [2023-12-22 01:18:35,552 INFO L413 NwaCegarLoop]: 1872 mSDtfsCounter, 4473 mSDsluCounter, 46584 mSDsCounter, 0 mSdLazyCounter, 13513 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 48456 SdHoareTripleChecker+Invalid, 13551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 13513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:18:35,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 48456 Invalid, 13551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 13513 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-22 01:18:35,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76626 states. [2023-12-22 01:18:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76626 to 36091. [2023-12-22 01:18:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36091 states, 36089 states have (on average 1.1900302031089807) internal successors, (42947), 36090 states have internal predecessors, (42947), 0 states have call successors, (0), 0 states 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 01:18:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36091 states to 36091 states and 42947 transitions. [2023-12-22 01:18:39,771 INFO L78 Accepts]: Start accepts. Automaton has 36091 states and 42947 transitions. Word has length 239 [2023-12-22 01:18:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:18:39,771 INFO L495 AbstractCegarLoop]: Abstraction has 36091 states and 42947 transitions. [2023-12-22 01:18:39,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.021739130434783) internal successors, (461), 46 states have internal predecessors, (461), 0 states have call successors, (0), 0 states 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 01:18:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 36091 states and 42947 transitions. [2023-12-22 01:18:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 01:18:39,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:18:39,787 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:18:39,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-22 01:18:39,987 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 01:18:39,987 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:18:39,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:18:39,988 INFO L85 PathProgramCache]: Analyzing trace with hash -162044140, now seen corresponding path program 2 times [2023-12-22 01:18:39,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:18:39,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033242199] [2023-12-22 01:18:39,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:18:39,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:18:39,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:18:39,989 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 01:18:39,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:18:40,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:18:40,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:18:40,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:18:40,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:18:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 54 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:18:43,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:18:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 54 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:18:44,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:18:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033242199] [2023-12-22 01:18:44,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033242199] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:18:44,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:18:44,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:18:44,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681733384] [2023-12-22 01:18:44,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:18:44,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:18:44,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:18:44,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:18:44,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:18:44,793 INFO L87 Difference]: Start difference. First operand 36091 states and 42947 transitions. Second operand has 46 states, 46 states have (on average 10.130434782608695) internal successors, (466), 46 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 01:19:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:39,123 INFO L93 Difference]: Finished difference Result 80823 states and 94590 transitions. [2023-12-22 01:19:39,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-12-22 01:19:39,124 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.130434782608695) internal successors, (466), 46 states have internal predecessors, (466), 0 states have call successors, (0), 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 239 [2023-12-22 01:19:39,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:39,196 INFO L225 Difference]: With dead ends: 80823 [2023-12-22 01:19:39,196 INFO L226 Difference]: Without dead ends: 77976 [2023-12-22 01:19:39,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13788 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=5103, Invalid=41337, Unknown=0, NotChecked=0, Total=46440 [2023-12-22 01:19:39,208 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 5631 mSDsluCounter, 51463 mSDsCounter, 0 mSdLazyCounter, 14556 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5631 SdHoareTripleChecker+Valid, 53309 SdHoareTripleChecker+Invalid, 14587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 14556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:39,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5631 Valid, 53309 Invalid, 14587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 14556 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2023-12-22 01:19:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77976 states. [2023-12-22 01:19:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77976 to 37476. [2023-12-22 01:19:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37476 states, 37474 states have (on average 1.1884773442920424) internal successors, (44537), 37475 states have internal predecessors, (44537), 0 states have call successors, (0), 0 states 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 01:19:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37476 states to 37476 states and 44537 transitions. [2023-12-22 01:19:44,250 INFO L78 Accepts]: Start accepts. Automaton has 37476 states and 44537 transitions. Word has length 239 [2023-12-22 01:19:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:44,251 INFO L495 AbstractCegarLoop]: Abstraction has 37476 states and 44537 transitions. [2023-12-22 01:19:44,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.130434782608695) internal successors, (466), 46 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 01:19:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 37476 states and 44537 transitions. [2023-12-22 01:19:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 01:19:44,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:44,266 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:44,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:44,466 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 01:19:44,467 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:44,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:44,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1918848404, now seen corresponding path program 2 times [2023-12-22 01:19:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:44,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112470250] [2023-12-22 01:19:44,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:19:44,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:19:44,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:44,469 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 01:19:44,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:19:44,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:19:44,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:19:44,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:19:44,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 100 proven. 466 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:47,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:19:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 100 proven. 466 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:49,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:49,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112470250] [2023-12-22 01:19:49,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112470250] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:19:49,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:19:49,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:19:49,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946359748] [2023-12-22 01:19:49,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:19:49,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:19:49,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:49,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:19:49,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:19:49,332 INFO L87 Difference]: Start difference. First operand 37476 states and 44537 transitions. Second operand has 46 states, 46 states have (on average 9.91304347826087) internal successors, (456), 46 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 01:20:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:43,196 INFO L93 Difference]: Finished difference Result 53466 states and 63061 transitions. [2023-12-22 01:20:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2023-12-22 01:20:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.91304347826087) internal successors, (456), 46 states have internal predecessors, (456), 0 states have call successors, (0), 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 239 [2023-12-22 01:20:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:43,238 INFO L225 Difference]: With dead ends: 53466 [2023-12-22 01:20:43,238 INFO L226 Difference]: Without dead ends: 47311 [2023-12-22 01:20:43,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22624 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=7202, Invalid=61180, Unknown=0, NotChecked=0, Total=68382 [2023-12-22 01:20:43,250 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 2999 mSDsluCounter, 47997 mSDsCounter, 0 mSdLazyCounter, 13402 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 49840 SdHoareTripleChecker+Invalid, 13448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 13402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:43,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2999 Valid, 49840 Invalid, 13448 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 13402 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-22 01:20:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47311 states. [2023-12-22 01:20:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47311 to 38906. [2023-12-22 01:20:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38906 states, 38904 states have (on average 1.1870758790869833) internal successors, (46182), 38905 states have internal predecessors, (46182), 0 states have call successors, (0), 0 states 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 01:20:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38906 states to 38906 states and 46182 transitions. [2023-12-22 01:20:48,057 INFO L78 Accepts]: Start accepts. Automaton has 38906 states and 46182 transitions. Word has length 239 [2023-12-22 01:20:48,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:48,058 INFO L495 AbstractCegarLoop]: Abstraction has 38906 states and 46182 transitions. [2023-12-22 01:20:48,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.91304347826087) internal successors, (456), 46 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 01:20:48,058 INFO L276 IsEmpty]: Start isEmpty. Operand 38906 states and 46182 transitions. [2023-12-22 01:20:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 01:20:48,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:48,073 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:48,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:48,277 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 01:20:48,278 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:48,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:48,278 INFO L85 PathProgramCache]: Analyzing trace with hash 529917496, now seen corresponding path program 2 times [2023-12-22 01:20:48,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:48,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516094734] [2023-12-22 01:20:48,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:20:48,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:48,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:48,279 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 01:20:48,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 01:20:48,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:20:48,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:20:48,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:20:48,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:51,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:52,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:52,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516094734] [2023-12-22 01:20:52,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516094734] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:52,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:52,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:20:52,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916546680] [2023-12-22 01:20:52,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:52,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:20:52,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:52,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:20:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:20:52,888 INFO L87 Difference]: Start difference. First operand 38906 states and 46182 transitions. Second operand has 46 states, 46 states have (on average 9.804347826086957) internal successors, (451), 46 states have internal predecessors, (451), 0 states have call successors, (0), 0 states 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 01:21:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:21:57,619 INFO L93 Difference]: Finished difference Result 56775 states and 66731 transitions. [2023-12-22 01:21:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2023-12-22 01:21:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.804347826086957) internal successors, (451), 46 states have internal predecessors, (451), 0 states have call successors, (0), 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 239 [2023-12-22 01:21:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:21:57,663 INFO L225 Difference]: With dead ends: 56775 [2023-12-22 01:21:57,663 INFO L226 Difference]: Without dead ends: 50482 [2023-12-22 01:21:57,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23446 ImplicationChecksByTransitivity, 37.0s TimeCoverageRelationStatistics Valid=7432, Invalid=64124, Unknown=0, NotChecked=0, Total=71556 [2023-12-22 01:21:57,670 INFO L413 NwaCegarLoop]: 1900 mSDtfsCounter, 4013 mSDsluCounter, 61154 mSDsCounter, 0 mSdLazyCounter, 17701 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4013 SdHoareTripleChecker+Valid, 63054 SdHoareTripleChecker+Invalid, 17739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 17701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:21:57,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4013 Valid, 63054 Invalid, 17739 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [38 Valid, 17701 Invalid, 0 Unknown, 0 Unchecked, 22.3s Time] [2023-12-22 01:21:57,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50482 states. [2023-12-22 01:22:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50482 to 39968. [2023-12-22 01:22:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39968 states, 39966 states have (on average 1.1857328729420007) internal successors, (47389), 39967 states have internal predecessors, (47389), 0 states have call successors, (0), 0 states 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 01:22:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39968 states to 39968 states and 47389 transitions. [2023-12-22 01:22:02,773 INFO L78 Accepts]: Start accepts. Automaton has 39968 states and 47389 transitions. Word has length 239 [2023-12-22 01:22:02,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:02,773 INFO L495 AbstractCegarLoop]: Abstraction has 39968 states and 47389 transitions. [2023-12-22 01:22:02,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.804347826086957) internal successors, (451), 46 states have internal predecessors, (451), 0 states have call successors, (0), 0 states 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 01:22:02,773 INFO L276 IsEmpty]: Start isEmpty. Operand 39968 states and 47389 transitions. [2023-12-22 01:22:02,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-22 01:22:02,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:02,788 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:02,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-22 01:22:02,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:02,988 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:02,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:02,989 INFO L85 PathProgramCache]: Analyzing trace with hash -62721806, now seen corresponding path program 2 times [2023-12-22 01:22:02,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:02,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552955245] [2023-12-22 01:22:02,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:22:02,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:02,990 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 01:22:02,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 01:22:03,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:22:03,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:22:03,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:22:03,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 21 proven. 503 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-22 01:22:03,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:22:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 21 proven. 503 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-22 01:22:03,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:03,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552955245] [2023-12-22 01:22:03,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552955245] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:22:03,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:22:03,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-22 01:22:03,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955086474] [2023-12-22 01:22:03,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:22:03,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 01:22:03,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:03,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 01:22:03,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-22 01:22:03,855 INFO L87 Difference]: Start difference. First operand 39968 states and 47389 transitions. Second operand has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 01:22:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:13,517 INFO L93 Difference]: Finished difference Result 83645 states and 97341 transitions. [2023-12-22 01:22:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:22:13,518 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 0 states have call successors, (0), 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 240 [2023-12-22 01:22:13,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:13,574 INFO L225 Difference]: With dead ends: 83645 [2023-12-22 01:22:13,574 INFO L226 Difference]: Without dead ends: 54775 [2023-12-22 01:22:13,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-22 01:22:13,584 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1528 mSDsluCounter, 7233 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 8910 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:13,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 8910 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:22:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54775 states. [2023-12-22 01:22:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54775 to 48660. [2023-12-22 01:22:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48660 states, 48658 states have (on average 1.1731472728020058) internal successors, (57083), 48659 states have internal predecessors, (57083), 0 states have call successors, (0), 0 states 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 01:22:20,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48660 states to 48660 states and 57083 transitions. [2023-12-22 01:22:20,168 INFO L78 Accepts]: Start accepts. Automaton has 48660 states and 57083 transitions. Word has length 240 [2023-12-22 01:22:20,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:20,169 INFO L495 AbstractCegarLoop]: Abstraction has 48660 states and 57083 transitions. [2023-12-22 01:22:20,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 32.75) internal successors, (393), 12 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 01:22:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 48660 states and 57083 transitions. [2023-12-22 01:22:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-22 01:22:20,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:20,182 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:22:20,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-22 01:22:20,382 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 01:22:20,383 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:20,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:20,383 INFO L85 PathProgramCache]: Analyzing trace with hash 725759938, now seen corresponding path program 2 times [2023-12-22 01:22:20,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083276701] [2023-12-22 01:22:20,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:22:20,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 01:22:20,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:20,385 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 01:22:20,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 01:22:20,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 01:22:20,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:22:20,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 01:22:20,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 45 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:23,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:22:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 45 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:25,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:25,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083276701] [2023-12-22 01:22:25,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083276701] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:22:25,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:22:25,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 01:22:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229194522] [2023-12-22 01:22:25,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:22:25,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 01:22:25,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 01:22:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 01:22:25,324 INFO L87 Difference]: Start difference. First operand 48660 states and 57083 transitions. Second operand has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 0 states 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 01:22:56,198 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-12-22 01:22:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-12-22 01:22:56,201 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 101 [2023-12-22 01:22:56,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6006 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=2672, Invalid=20890, Unknown=0, NotChecked=0, Total=23562 [2023-12-22 01:22:56,202 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1424 mSDsluCounter, 12863 mSDsCounter, 0 mSdLazyCounter, 10886 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 13352 SdHoareTripleChecker+Invalid, 10900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 10886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:56,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 13352 Invalid, 10900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 10886 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-22 01:22:56,207 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 01:22:56,407 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 01:22:56,407 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:915) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:247) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 47 more [2023-12-22 01:22:56,412 INFO L158 Benchmark]: Toolchain (without parser) took 741162.41ms. Allocated memory was 251.7MB in the beginning and 3.5GB in the end (delta: 3.2GB). Free memory was 193.6MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-22 01:22:56,412 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 195.0MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 01:22:56,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1218.81ms. Allocated memory is still 251.7MB. Free memory was 193.6MB in the beginning and 190.1MB in the end (delta: 3.5MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. [2023-12-22 01:22:56,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.71ms. Allocated memory is still 251.7MB. Free memory was 190.1MB in the beginning and 154.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 01:22:56,412 INFO L158 Benchmark]: Boogie Preprocessor took 209.30ms. Allocated memory is still 251.7MB. Free memory was 154.4MB in the beginning and 115.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-22 01:22:56,412 INFO L158 Benchmark]: RCFGBuilder took 21357.09ms. Allocated memory was 251.7MB in the beginning and 502.3MB in the end (delta: 250.6MB). Free memory was 115.7MB in the beginning and 382.0MB in the end (delta: -266.3MB). Peak memory consumption was 158.9MB. Max. memory is 8.0GB. [2023-12-22 01:22:56,413 INFO L158 Benchmark]: TraceAbstraction took 718256.10ms. Allocated memory was 502.3MB in the beginning and 3.5GB in the end (delta: 3.0GB). Free memory was 381.5MB in the beginning and 2.2GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-22 01:22:56,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 195.0MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1218.81ms. Allocated memory is still 251.7MB. Free memory was 193.6MB in the beginning and 190.1MB in the end (delta: 3.5MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 116.71ms. Allocated memory is still 251.7MB. Free memory was 190.1MB in the beginning and 154.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 209.30ms. Allocated memory is still 251.7MB. Free memory was 154.4MB in the beginning and 115.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 21357.09ms. Allocated memory was 251.7MB in the beginning and 502.3MB in the end (delta: 250.6MB). Free memory was 115.7MB in the beginning and 382.0MB in the end (delta: -266.3MB). Peak memory consumption was 158.9MB. Max. memory is 8.0GB. * TraceAbstraction took 718256.10ms. Allocated memory was 502.3MB in the beginning and 3.5GB in the end (delta: 3.0GB). Free memory was 381.5MB in the beginning and 2.2GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...