/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.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:42:12,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:42:12,368 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 00:42:12,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:42:12,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:42:12,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:42:12,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:42:12,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:42:12,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:42:12,404 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:42:12,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:42:12,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:42:12,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:42:12,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:42:12,406 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:42:12,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:42:12,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:42:12,407 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:42:12,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:42:12,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:42:12,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:42:12,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:42:12,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:42:12,408 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:42:12,409 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:42:12,409 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:42:12,409 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:42:12,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:42:12,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:42:12,409 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:42:12,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:42:12,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:42:12,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:42:12,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:42:12,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:42:12,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:42:12,412 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:42:12,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:42:12,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:42:12,412 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:42:12,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:42:12,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:42:12,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:42:12,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:42:12,623 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:42:12,623 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:42:12,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c [2023-12-22 00:42:13,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:42:14,120 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:42:14,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c [2023-12-22 00:42:14,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f7bdc0e/66f71b666e384d2c9bc3dc370d16708f/FLAG3b815ab2e [2023-12-22 00:42:14,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f7bdc0e/66f71b666e384d2c9bc3dc370d16708f [2023-12-22 00:42:14,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:42:14,161 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:42:14,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:42:14,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:42:14,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:42:14,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:42:14" (1/1) ... [2023-12-22 00:42:14,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2c5f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:14, skipping insertion in model container [2023-12-22 00:42:14,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:42:14" (1/1) ... [2023-12-22 00:42:14,262 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:42:14,568 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.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[11677,11690] [2023-12-22 00:42:14,621 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.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[19425,19438] [2023-12-22 00:42:15,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:42:15,196 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:42:15,230 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.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[11677,11690] [2023-12-22 00:42:15,241 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.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c[19425,19438] [2023-12-22 00:42:15,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:42:15,587 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:42:15,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15 WrapperNode [2023-12-22 00:42:15,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:42:15,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:42:15,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:42:15,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:42:15,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,705 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5070 [2023-12-22 00:42:15,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:42:15,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:42:15,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:42:15,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:42:15,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,788 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 00:42:15,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:42:15,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:42:15,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:42:15,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:42:15,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (1/1) ... [2023-12-22 00:42:15,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:42:15,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:42:15,945 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 00:42:15,950 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 00:42:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:42:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:42:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:42:15,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:42:16,068 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:42:16,070 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:42:39,771 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:42:39,823 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:42:39,823 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:42:39,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:42:39 BoogieIcfgContainer [2023-12-22 00:42:39,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:42:39,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:42:39,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:42:39,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:42:39,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:42:14" (1/3) ... [2023-12-22 00:42:39,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af9c8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:42:39, skipping insertion in model container [2023-12-22 00:42:39,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:42:15" (2/3) ... [2023-12-22 00:42:39,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af9c8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:42:39, skipping insertion in model container [2023-12-22 00:42:39,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:42:39" (3/3) ... [2023-12-22 00:42:39,830 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label09.c [2023-12-22 00:42:39,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:42:39,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:42:39,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:42:39,911 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;@14b45a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:42:39,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:42:39,918 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 00:42:39,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 00:42:39,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:39,924 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 00:42:39,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:39,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1603356568, now seen corresponding path program 1 times [2023-12-22 00:42:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641473617] [2023-12-22 00:42:39,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:39,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:39,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:39,969 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 00:42:40,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:40,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:42:40,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:40,121 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 00:42:40,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:40,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:40,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641473617] [2023-12-22 00:42:40,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641473617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:40,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:40,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:42:40,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654856987] [2023-12-22 00:42:40,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:40,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:42:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:42:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:42:40,147 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 00:42:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:40,226 INFO L93 Difference]: Finished difference Result 1633 states and 3216 transitions. [2023-12-22 00:42:40,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:42:40,233 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 00:42:40,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:40,245 INFO L225 Difference]: With dead ends: 1633 [2023-12-22 00:42:40,246 INFO L226 Difference]: Without dead ends: 830 [2023-12-22 00:42:40,250 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 00:42:40,252 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:42:40,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1571 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:42:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-12-22 00:42:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2023-12-22 00:42:40,308 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 00:42:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1571 transitions. [2023-12-22 00:42:40,311 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1571 transitions. Word has length 21 [2023-12-22 00:42:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:40,311 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1571 transitions. [2023-12-22 00:42:40,311 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 00:42:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1571 transitions. [2023-12-22 00:42:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 00:42:40,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:40,312 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 00:42:40,327 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 00:42:40,521 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 00:42:40,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:40,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1103262826, now seen corresponding path program 1 times [2023-12-22 00:42:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:40,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142735381] [2023-12-22 00:42:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:40,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:40,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:40,535 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 00:42:40,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:40,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:42:40,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:40,672 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 00:42:40,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:40,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:40,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142735381] [2023-12-22 00:42:40,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142735381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:40,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:40,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:42:40,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928630357] [2023-12-22 00:42:40,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:40,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:42:40,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:40,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:42:40,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:42:40,678 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 00:42:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:40,767 INFO L93 Difference]: Finished difference Result 874 states and 1640 transitions. [2023-12-22 00:42:40,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:42:40,768 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 00:42:40,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:40,772 INFO L225 Difference]: With dead ends: 874 [2023-12-22 00:42:40,773 INFO L226 Difference]: Without dead ends: 830 [2023-12-22 00:42:40,773 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 00:42:40,774 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:42:40,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4669 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:42:40,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-12-22 00:42:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2023-12-22 00:42:40,798 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 00:42:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1540 transitions. [2023-12-22 00:42:40,800 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1540 transitions. Word has length 21 [2023-12-22 00:42:40,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:40,800 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1540 transitions. [2023-12-22 00:42:40,800 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 00:42:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1540 transitions. [2023-12-22 00:42:40,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 00:42:40,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:40,804 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 00:42:40,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 00:42:41,007 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 00:42:41,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:41,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:41,011 INFO L85 PathProgramCache]: Analyzing trace with hash 51546625, now seen corresponding path program 1 times [2023-12-22 00:42:41,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:41,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986697513] [2023-12-22 00:42:41,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:41,012 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 00:42:41,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:41,015 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 00:42:41,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:41,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:42:41,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:41,640 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 00:42:41,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:41,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986697513] [2023-12-22 00:42:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986697513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:41,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:41,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:42:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425575678] [2023-12-22 00:42:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:41,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:42:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:42:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:42:41,642 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 00:42:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:41,860 INFO L93 Difference]: Finished difference Result 1076 states and 1936 transitions. [2023-12-22 00:42:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:42:41,861 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 00:42:41,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:41,867 INFO L225 Difference]: With dead ends: 1076 [2023-12-22 00:42:41,867 INFO L226 Difference]: Without dead ends: 1035 [2023-12-22 00:42:41,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 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 00:42:41,869 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 3285 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:42:41,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 1952 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:42:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-12-22 00:42:41,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 908. [2023-12-22 00:42:41,883 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 00:42:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1667 transitions. [2023-12-22 00:42:41,885 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1667 transitions. Word has length 51 [2023-12-22 00:42:41,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:41,885 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1667 transitions. [2023-12-22 00:42:41,886 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 00:42:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1667 transitions. [2023-12-22 00:42:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-22 00:42:41,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:41,889 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 00:42:41,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 00:42:42,092 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 00:42:42,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:42,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:42,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2145916561, now seen corresponding path program 1 times [2023-12-22 00:42:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:42,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041109545] [2023-12-22 00:42:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:42,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:42,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:42,102 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 00:42:42,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 00:42:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:42,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:42,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:42,263 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 00:42:42,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:42,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:42,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041109545] [2023-12-22 00:42:42,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041109545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:42,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:42,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:42:42,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900773970] [2023-12-22 00:42:42,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:42,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:42,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:42,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:42,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:42,265 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 00:42:42,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:42,301 INFO L93 Difference]: Finished difference Result 1130 states and 2025 transitions. [2023-12-22 00:42:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:42:42,304 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 00:42:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:42,307 INFO L225 Difference]: With dead ends: 1130 [2023-12-22 00:42:42,307 INFO L226 Difference]: Without dead ends: 1011 [2023-12-22 00:42:42,308 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 00:42:42,309 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 00:42:42,310 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 00:42:42,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-12-22 00:42:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1009. [2023-12-22 00:42:42,326 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 00:42:42,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1826 transitions. [2023-12-22 00:42:42,328 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1826 transitions. Word has length 53 [2023-12-22 00:42:42,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:42,328 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1826 transitions. [2023-12-22 00:42:42,328 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 00:42:42,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1826 transitions. [2023-12-22 00:42:42,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 00:42:42,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:42,329 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 00:42:42,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 00:42:42,532 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 00:42:42,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:42,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:42,532 INFO L85 PathProgramCache]: Analyzing trace with hash 2036322024, now seen corresponding path program 1 times [2023-12-22 00:42:42,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:42,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802166123] [2023-12-22 00:42:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:42,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:42,560 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 00:42:42,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:42,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:42:42,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:42,715 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 00:42:42,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:42,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:42,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802166123] [2023-12-22 00:42:42,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802166123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:42,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:42:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880522239] [2023-12-22 00:42:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:42,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:42:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:42,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:42:42,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:42:42,717 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 00:42:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:42,767 INFO L93 Difference]: Finished difference Result 1023 states and 1843 transitions. [2023-12-22 00:42:42,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:42:42,773 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 00:42:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:42,777 INFO L225 Difference]: With dead ends: 1023 [2023-12-22 00:42:42,777 INFO L226 Difference]: Without dead ends: 1021 [2023-12-22 00:42:42,777 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 00:42:42,778 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 00:42:42,778 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 00:42:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-12-22 00:42:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1017. [2023-12-22 00:42:42,790 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 00:42:42,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1833 transitions. [2023-12-22 00:42:42,793 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1833 transitions. Word has length 54 [2023-12-22 00:42:42,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:42,795 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1833 transitions. [2023-12-22 00:42:42,795 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 00:42:42,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1833 transitions. [2023-12-22 00:42:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:42:42,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:42,801 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 00:42:42,825 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 (6)] Ended with exit code 0 [2023-12-22 00:42:43,004 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 00:42:43,004 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:43,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1922958665, now seen corresponding path program 1 times [2023-12-22 00:42:43,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:43,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258626809] [2023-12-22 00:42:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:43,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:43,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:43,026 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 00:42:43,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 00:42:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:43,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:43,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:43,155 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 00:42:43,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:43,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:43,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258626809] [2023-12-22 00:42:43,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258626809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:43,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:43,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:42:43,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836231983] [2023-12-22 00:42:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:43,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:43,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:43,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:43,157 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 00:42:43,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:43,187 INFO L93 Difference]: Finished difference Result 1257 states and 2213 transitions. [2023-12-22 00:42:43,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:42:43,188 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 00:42:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:43,192 INFO L225 Difference]: With dead ends: 1257 [2023-12-22 00:42:43,192 INFO L226 Difference]: Without dead ends: 1132 [2023-12-22 00:42:43,193 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 00:42:43,193 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 00:42:43,194 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 00:42:43,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-22 00:42:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1130. [2023-12-22 00:42:43,224 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 00:42:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 2009 transitions. [2023-12-22 00:42:43,227 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 2009 transitions. Word has length 55 [2023-12-22 00:42:43,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:43,227 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 2009 transitions. [2023-12-22 00:42:43,227 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 00:42:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 2009 transitions. [2023-12-22 00:42:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:42:43,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:43,228 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 00:42:43,233 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 00:42:43,433 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 00:42:43,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:43,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:43,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1694319433, now seen corresponding path program 1 times [2023-12-22 00:42:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:43,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171861467] [2023-12-22 00:42:43,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:43,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:43,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:43,435 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 00:42:43,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:43,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:43,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:43,563 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 00:42:43,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:43,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:43,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171861467] [2023-12-22 00:42:43,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171861467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:43,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:43,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:42:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760534504] [2023-12-22 00:42:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:43,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:43,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:43,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:43,565 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 00:42:43,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:43,609 INFO L93 Difference]: Finished difference Result 1772 states and 3012 transitions. [2023-12-22 00:42:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:42:43,610 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 00:42:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:43,614 INFO L225 Difference]: With dead ends: 1772 [2023-12-22 00:42:43,614 INFO L226 Difference]: Without dead ends: 1433 [2023-12-22 00:42:43,614 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 00:42:43,615 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 00:42:43,615 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 00:42:43,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2023-12-22 00:42:43,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1431. [2023-12-22 00:42:43,634 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 00:42:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2469 transitions. [2023-12-22 00:42:43,637 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2469 transitions. Word has length 55 [2023-12-22 00:42:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:43,637 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 2469 transitions. [2023-12-22 00:42:43,637 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 00:42:43,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2469 transitions. [2023-12-22 00:42:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:42:43,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:43,638 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 00:42:43,643 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 (8)] Ended with exit code 0 [2023-12-22 00:42:43,840 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 00:42:43,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:43,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:43,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1068663369, now seen corresponding path program 1 times [2023-12-22 00:42:43,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:43,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894014798] [2023-12-22 00:42:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:43,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:43,843 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 00:42:43,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:43,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:43,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:43,999 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 00:42:43,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:44,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:44,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894014798] [2023-12-22 00:42:44,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894014798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:44,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:44,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:42:44,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625409922] [2023-12-22 00:42:44,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:44,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:44,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:44,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:44,001 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 00:42:44,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:44,041 INFO L93 Difference]: Finished difference Result 2639 states and 4329 transitions. [2023-12-22 00:42:44,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:42:44,042 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 00:42:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:44,047 INFO L225 Difference]: With dead ends: 2639 [2023-12-22 00:42:44,047 INFO L226 Difference]: Without dead ends: 1999 [2023-12-22 00:42:44,048 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 00:42:44,050 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 00:42:44,052 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 00:42:44,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2023-12-22 00:42:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2023-12-22 00:42:44,077 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 00:42:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 3317 transitions. [2023-12-22 00:42:44,080 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 3317 transitions. Word has length 55 [2023-12-22 00:42:44,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:44,081 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 3317 transitions. [2023-12-22 00:42:44,081 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 00:42:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 3317 transitions. [2023-12-22 00:42:44,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:42:44,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:44,082 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 00:42:44,087 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 00:42:44,288 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 00:42:44,288 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:44,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:44,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1957396809, now seen corresponding path program 1 times [2023-12-22 00:42:44,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:44,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27104854] [2023-12-22 00:42:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:44,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:44,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:44,290 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 00:42:44,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 00:42:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:44,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:44,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:44,395 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 00:42:44,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:44,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:44,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27104854] [2023-12-22 00:42:44,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27104854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:44,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:44,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:42:44,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980004740] [2023-12-22 00:42:44,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:44,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:44,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:44,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:44,398 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 00:42:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:44,441 INFO L93 Difference]: Finished difference Result 4265 states and 6747 transitions. [2023-12-22 00:42:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:42:44,442 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 00:42:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:44,450 INFO L225 Difference]: With dead ends: 4265 [2023-12-22 00:42:44,450 INFO L226 Difference]: Without dead ends: 3059 [2023-12-22 00:42:44,453 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 00:42:44,454 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 00:42:44,455 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 00:42:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-12-22 00:42:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3057. [2023-12-22 00:42:44,501 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 00:42:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4869 transitions. [2023-12-22 00:42:44,507 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4869 transitions. Word has length 55 [2023-12-22 00:42:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:44,507 INFO L495 AbstractCegarLoop]: Abstraction has 3057 states and 4869 transitions. [2023-12-22 00:42:44,507 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 00:42:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4869 transitions. [2023-12-22 00:42:44,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:42:44,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:44,508 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 00:42:44,513 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 00:42:44,711 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 00:42:44,712 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:44,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:44,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1654375497, now seen corresponding path program 1 times [2023-12-22 00:42:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:44,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489074299] [2023-12-22 00:42:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:44,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:44,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:44,714 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 00:42:44,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 00:42:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:44,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:44,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:44,825 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 00:42:44,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:44,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:44,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489074299] [2023-12-22 00:42:44,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489074299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:44,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:44,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:42:44,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635841345] [2023-12-22 00:42:44,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:44,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:44,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:44,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:44,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:44,827 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 00:42:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:44,880 INFO L93 Difference]: Finished difference Result 7301 states and 11151 transitions. [2023-12-22 00:42:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:42:44,881 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 00:42:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:44,894 INFO L225 Difference]: With dead ends: 7301 [2023-12-22 00:42:44,894 INFO L226 Difference]: Without dead ends: 5035 [2023-12-22 00:42:44,897 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 00:42:44,897 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 00:42:44,897 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 00:42:44,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2023-12-22 00:42:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5033. [2023-12-22 00:42:44,974 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 00:42:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 7685 transitions. [2023-12-22 00:42:44,985 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 7685 transitions. Word has length 55 [2023-12-22 00:42:44,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:44,986 INFO L495 AbstractCegarLoop]: Abstraction has 5033 states and 7685 transitions. [2023-12-22 00:42:44,986 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 00:42:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 7685 transitions. [2023-12-22 00:42:44,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 00:42:44,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:44,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:42:45,001 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 (11)] Ended with exit code 0 [2023-12-22 00:42:45,189 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 00:42:45,189 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:45,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1483191019, now seen corresponding path program 1 times [2023-12-22 00:42:45,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:45,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143225015] [2023-12-22 00:42:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:45,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:42:45,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:45,191 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 00:42:45,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:42:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:45,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:42:45,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:45,343 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 00:42:45,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:42:45,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:45,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143225015] [2023-12-22 00:42:45,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143225015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:42:45,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:42:45,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:42:45,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337947524] [2023-12-22 00:42:45,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:42:45,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:42:45,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:45,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:42:45,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:42:45,344 INFO L87 Difference]: Start difference. First operand 5033 states and 7685 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:21,520 INFO L93 Difference]: Finished difference Result 6537 states and 10558 transitions. [2023-12-22 00:43:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:43:21,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 00:43:21,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:21,543 INFO L225 Difference]: With dead ends: 6537 [2023-12-22 00:43:21,544 INFO L226 Difference]: Without dead ends: 5784 [2023-12-22 00:43:21,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:43:21,547 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 831 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 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, 36.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:21,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 645 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2023-12-22 00:43:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5784 states. [2023-12-22 00:43:21,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5784 to 5784. [2023-12-22 00:43:21,658 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 00:43:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 8592 transitions. [2023-12-22 00:43:21,666 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 8592 transitions. Word has length 66 [2023-12-22 00:43:21,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:21,667 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 8592 transitions. [2023-12-22 00:43:21,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 8592 transitions. [2023-12-22 00:43:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 00:43:21,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:21,668 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 00:43:21,673 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 00:43:21,871 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 00:43:21,871 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:21,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash 285878162, now seen corresponding path program 1 times [2023-12-22 00:43:21,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:21,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885060205] [2023-12-22 00:43:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:21,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:21,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:21,873 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 00:43:21,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:21,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:43:21,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:22,598 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 00:43:22,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:22,919 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 00:43:22,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:22,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885060205] [2023-12-22 00:43:22,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885060205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:22,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:22,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:43:22,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023988087] [2023-12-22 00:43:22,919 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:22,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:43:22,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:22,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:43:22,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:43:22,921 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 00:43:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:24,446 INFO L93 Difference]: Finished difference Result 15122 states and 22101 transitions. [2023-12-22 00:43:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:43:24,446 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 00:43:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:24,473 INFO L225 Difference]: With dead ends: 15122 [2023-12-22 00:43:24,473 INFO L226 Difference]: Without dead ends: 12144 [2023-12-22 00:43:24,476 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 00:43:24,477 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 3781 mSDsluCounter, 9314 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3781 SdHoareTripleChecker+Valid, 10857 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:24,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3781 Valid, 10857 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:43:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12144 states. [2023-12-22 00:43:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12144 to 10024. [2023-12-22 00:43:24,681 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 00:43:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10024 states to 10024 states and 14752 transitions. [2023-12-22 00:43:24,696 INFO L78 Accepts]: Start accepts. Automaton has 10024 states and 14752 transitions. Word has length 73 [2023-12-22 00:43:24,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:24,697 INFO L495 AbstractCegarLoop]: Abstraction has 10024 states and 14752 transitions. [2023-12-22 00:43:24,697 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 00:43:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10024 states and 14752 transitions. [2023-12-22 00:43:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 00:43:24,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:24,699 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 00:43:24,703 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 00:43:24,903 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 00:43:24,903 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:24,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash 57238930, now seen corresponding path program 1 times [2023-12-22 00:43:24,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:24,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253215750] [2023-12-22 00:43:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:24,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:24,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:24,905 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 00:43:24,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:24,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:43:24,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:25,010 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 00:43:25,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:43:25,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:25,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253215750] [2023-12-22 00:43:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253215750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:43:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:43:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:43:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205768601] [2023-12-22 00:43:25,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:43:25,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:43:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:25,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:43:25,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:43:25,013 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 00:43:25,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:25,156 INFO L93 Difference]: Finished difference Result 15998 states and 23557 transitions. [2023-12-22 00:43:25,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:43:25,156 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 00:43:25,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:25,165 INFO L225 Difference]: With dead ends: 15998 [2023-12-22 00:43:25,165 INFO L226 Difference]: Without dead ends: 7516 [2023-12-22 00:43:25,169 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 00:43:25,184 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:25,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3103 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:43:25,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2023-12-22 00:43:25,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 7509. [2023-12-22 00:43:25,299 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 00:43:25,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7509 states to 7509 states and 11085 transitions. [2023-12-22 00:43:25,309 INFO L78 Accepts]: Start accepts. Automaton has 7509 states and 11085 transitions. Word has length 73 [2023-12-22 00:43:25,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:25,309 INFO L495 AbstractCegarLoop]: Abstraction has 7509 states and 11085 transitions. [2023-12-22 00:43:25,309 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 00:43:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7509 states and 11085 transitions. [2023-12-22 00:43:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 00:43:25,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:25,310 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 00:43:25,328 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 00:43:25,513 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 00:43:25,514 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:25,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1433078630, now seen corresponding path program 1 times [2023-12-22 00:43:25,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:25,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090637915] [2023-12-22 00:43:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:25,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:25,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:25,517 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 00:43:25,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:25,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:43:25,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:25,636 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 00:43:25,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:43:25,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:25,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090637915] [2023-12-22 00:43:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090637915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:43:25,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:43:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:43:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199283697] [2023-12-22 00:43:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:43:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:43:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:43:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:43:25,638 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 00:43:25,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:25,700 INFO L93 Difference]: Finished difference Result 10489 states and 15431 transitions. [2023-12-22 00:43:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:43:25,700 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 00:43:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:25,706 INFO L225 Difference]: With dead ends: 10489 [2023-12-22 00:43:25,706 INFO L226 Difference]: Without dead ends: 4535 [2023-12-22 00:43:25,710 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 00:43:25,711 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 00:43:25,711 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 00:43:25,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2023-12-22 00:43:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 4533. [2023-12-22 00:43:25,773 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 00:43:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 6693 transitions. [2023-12-22 00:43:25,777 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 6693 transitions. Word has length 75 [2023-12-22 00:43:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:25,777 INFO L495 AbstractCegarLoop]: Abstraction has 4533 states and 6693 transitions. [2023-12-22 00:43:25,777 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 00:43:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 6693 transitions. [2023-12-22 00:43:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 00:43:25,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:25,778 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 00:43:25,783 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 00:43:25,982 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 00:43:25,982 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:25,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1221061864, now seen corresponding path program 1 times [2023-12-22 00:43:25,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:25,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561650862] [2023-12-22 00:43:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:25,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:25,984 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 00:43:25,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:26,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:43:26,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:26,770 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 00:43:26,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:27,050 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 00:43:27,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:27,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561650862] [2023-12-22 00:43:27,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561650862] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:27,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:27,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:43:27,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517872378] [2023-12-22 00:43:27,051 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:27,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:43:27,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:43:27,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:43:27,052 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 00:43:27,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:27,715 INFO L93 Difference]: Finished difference Result 7623 states and 11106 transitions. [2023-12-22 00:43:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 00:43:27,715 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 00:43:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:27,721 INFO L225 Difference]: With dead ends: 7623 [2023-12-22 00:43:27,721 INFO L226 Difference]: Without dead ends: 4645 [2023-12-22 00:43:27,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 00:43:27,725 INFO L413 NwaCegarLoop]: 1495 mSDtfsCounter, 3130 mSDsluCounter, 10503 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 11998 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:27,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 11998 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 00:43:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2023-12-22 00:43:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 4547. [2023-12-22 00:43:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4545 states have (on average 1.4761276127612761) internal successors, (6709), 4546 states have internal predecessors, (6709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6709 transitions. [2023-12-22 00:43:27,817 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6709 transitions. Word has length 76 [2023-12-22 00:43:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:27,818 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 6709 transitions. [2023-12-22 00:43:27,818 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 00:43:27,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6709 transitions. [2023-12-22 00:43:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 00:43:27,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:27,818 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 00:43:27,822 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 00:43:28,022 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 00:43:28,022 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:28,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:28,023 INFO L85 PathProgramCache]: Analyzing trace with hash -864246036, now seen corresponding path program 1 times [2023-12-22 00:43:28,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:28,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537739419] [2023-12-22 00:43:28,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:28,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:28,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:28,025 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 00:43:28,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 00:43:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:28,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:43:28,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:28,160 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 00:43:28,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:43:28,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:28,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537739419] [2023-12-22 00:43:28,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537739419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:43:28,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:43:28,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:43:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706514400] [2023-12-22 00:43:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:43:28,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:43:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:43:28,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:43:28,162 INFO L87 Difference]: Start difference. First operand 4547 states and 6709 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 00:43:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:28,201 INFO L93 Difference]: Finished difference Result 6039 states and 8859 transitions. [2023-12-22 00:43:28,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:43:28,202 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 00:43:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:28,205 INFO L225 Difference]: With dead ends: 6039 [2023-12-22 00:43:28,205 INFO L226 Difference]: Without dead ends: 3061 [2023-12-22 00:43:28,207 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 00:43:28,208 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 00:43:28,208 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 00:43:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2023-12-22 00:43:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 3059. [2023-12-22 00:43:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 3057 states have (on average 1.4841347726529277) internal successors, (4537), 3058 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 4537 transitions. [2023-12-22 00:43:28,241 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 4537 transitions. Word has length 78 [2023-12-22 00:43:28,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:28,242 INFO L495 AbstractCegarLoop]: Abstraction has 3059 states and 4537 transitions. [2023-12-22 00:43:28,242 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 00:43:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 4537 transitions. [2023-12-22 00:43:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-22 00:43:28,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:28,242 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 00:43:28,245 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 00:43:28,445 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 00:43:28,445 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:28,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:28,446 INFO L85 PathProgramCache]: Analyzing trace with hash -727176698, now seen corresponding path program 1 times [2023-12-22 00:43:28,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:28,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203995076] [2023-12-22 00:43:28,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:28,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:28,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:28,447 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 00:43:28,475 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 (18)] Waiting until timeout for monitored process [2023-12-22 00:43:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:28,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:43:28,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:29,082 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 00:43:29,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:29,360 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 00:43:29,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203995076] [2023-12-22 00:43:29,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203995076] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:29,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:29,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:43:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029702524] [2023-12-22 00:43:29,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:29,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:43:29,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:43:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:43:29,362 INFO L87 Difference]: Start difference. First operand 3059 states and 4537 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 00:43:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:30,338 INFO L93 Difference]: Finished difference Result 7123 states and 10253 transitions. [2023-12-22 00:43:30,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:43:30,339 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 00:43:30,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:30,345 INFO L225 Difference]: With dead ends: 7123 [2023-12-22 00:43:30,346 INFO L226 Difference]: Without dead ends: 5633 [2023-12-22 00:43:30,348 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 00:43:30,348 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 5079 mSDsluCounter, 9233 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 00:43:30,348 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 00:43:30,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2023-12-22 00:43:30,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 4691. [2023-12-22 00:43:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4691 states, 4689 states have (on average 1.4461505651524846) internal successors, (6781), 4690 states have internal predecessors, (6781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:30,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4691 states to 4691 states and 6781 transitions. [2023-12-22 00:43:30,429 INFO L78 Accepts]: Start accepts. Automaton has 4691 states and 6781 transitions. Word has length 79 [2023-12-22 00:43:30,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:30,429 INFO L495 AbstractCegarLoop]: Abstraction has 4691 states and 6781 transitions. [2023-12-22 00:43:30,430 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 00:43:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4691 states and 6781 transitions. [2023-12-22 00:43:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 00:43:30,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:30,432 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 00:43:30,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 00:43:30,635 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 00:43:30,635 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:30,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1769411162, now seen corresponding path program 1 times [2023-12-22 00:43:30,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:30,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624194039] [2023-12-22 00:43:30,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:30,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:43:30,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:30,637 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 00:43:30,638 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 (19)] Waiting until timeout for monitored process [2023-12-22 00:43:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:30,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:43:30,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:30,760 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 00:43:30,760 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:43:30,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:30,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624194039] [2023-12-22 00:43:30,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624194039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:43:30,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:43:30,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:43:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554370818] [2023-12-22 00:43:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:43:30,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:43:30,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:43:30,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:43:30,761 INFO L87 Difference]: Start difference. First operand 4691 states and 6781 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 00:43:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:30,806 INFO L93 Difference]: Finished difference Result 6255 states and 8967 transitions. [2023-12-22 00:43:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:43:30,807 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 00:43:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:30,811 INFO L225 Difference]: With dead ends: 6255 [2023-12-22 00:43:30,811 INFO L226 Difference]: Without dead ends: 3133 [2023-12-22 00:43:30,813 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 00:43:30,814 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 00:43:30,814 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 00:43:30,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2023-12-22 00:43:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 3131. [2023-12-22 00:43:30,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3129 states have (on average 1.461489293704059) internal successors, (4573), 3130 states have internal predecessors, (4573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 4573 transitions. [2023-12-22 00:43:30,889 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 4573 transitions. Word has length 81 [2023-12-22 00:43:30,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:30,889 INFO L495 AbstractCegarLoop]: Abstraction has 3131 states and 4573 transitions. [2023-12-22 00:43:30,889 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 00:43:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 4573 transitions. [2023-12-22 00:43:30,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-22 00:43:30,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:30,890 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 00:43:30,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 00:43:31,093 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 00:43:31,093 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:31,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:31,094 INFO L85 PathProgramCache]: Analyzing trace with hash 651819404, now seen corresponding path program 1 times [2023-12-22 00:43:31,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:31,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935898165] [2023-12-22 00:43:31,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:31,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:31,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:31,095 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 00:43:31,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:31,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:43:31,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:31,774 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 00:43:31,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:32,109 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 00:43:32,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935898165] [2023-12-22 00:43:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935898165] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:32,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:32,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:43:32,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710178926] [2023-12-22 00:43:32,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:32,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:43:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:32,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:43:32,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:43:32,111 INFO L87 Difference]: Start difference. First operand 3131 states and 4573 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 00:43:33,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:33,099 INFO L93 Difference]: Finished difference Result 7195 states and 10121 transitions. [2023-12-22 00:43:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:43:33,099 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 00:43:33,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:33,106 INFO L225 Difference]: With dead ends: 7195 [2023-12-22 00:43:33,107 INFO L226 Difference]: Without dead ends: 5633 [2023-12-22 00:43:33,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 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 00:43:33,110 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 2063 mSDsluCounter, 9228 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 10780 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:33,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 10780 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 00:43:33,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2023-12-22 00:43:33,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 4835. [2023-12-22 00:43:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4835 states, 4833 states have (on average 1.4179598593006415) internal successors, (6853), 4834 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 6853 transitions. [2023-12-22 00:43:33,200 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 6853 transitions. Word has length 82 [2023-12-22 00:43:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:33,200 INFO L495 AbstractCegarLoop]: Abstraction has 4835 states and 6853 transitions. [2023-12-22 00:43:33,200 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 00:43:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 6853 transitions. [2023-12-22 00:43:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-22 00:43:33,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:33,201 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 00:43:33,222 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 00:43:33,423 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 00:43:33,423 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:33,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:33,424 INFO L85 PathProgramCache]: Analyzing trace with hash -971535880, now seen corresponding path program 1 times [2023-12-22 00:43:33,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:33,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962875245] [2023-12-22 00:43:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:33,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:33,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:33,425 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 00:43:33,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:33,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:43:33,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:33,539 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 00:43:33,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:43:33,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:33,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962875245] [2023-12-22 00:43:33,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962875245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:43:33,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:43:33,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:43:33,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862123074] [2023-12-22 00:43:33,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:43:33,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:43:33,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:33,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:43:33,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:43:33,542 INFO L87 Difference]: Start difference. First operand 4835 states and 6853 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 00:43:33,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:33,594 INFO L93 Difference]: Finished difference Result 6471 states and 9063 transitions. [2023-12-22 00:43:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:43:33,595 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 00:43:33,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:33,598 INFO L225 Difference]: With dead ends: 6471 [2023-12-22 00:43:33,598 INFO L226 Difference]: Without dead ends: 3205 [2023-12-22 00:43:33,601 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 00:43:33,602 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 00:43:33,602 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 00:43:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2023-12-22 00:43:33,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3203. [2023-12-22 00:43:33,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3201 states have (on average 1.43611371446423) internal successors, (4597), 3202 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:33,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4597 transitions. [2023-12-22 00:43:33,690 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4597 transitions. Word has length 84 [2023-12-22 00:43:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:33,690 INFO L495 AbstractCegarLoop]: Abstraction has 3203 states and 4597 transitions. [2023-12-22 00:43:33,690 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 00:43:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4597 transitions. [2023-12-22 00:43:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-22 00:43:33,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:33,691 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 00:43:33,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 00:43:33,894 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 00:43:33,894 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:33,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:33,894 INFO L85 PathProgramCache]: Analyzing trace with hash 504882810, now seen corresponding path program 1 times [2023-12-22 00:43:33,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:33,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506420366] [2023-12-22 00:43:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:33,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:43:33,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:33,896 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 00:43:33,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:33,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:43:33,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:34,597 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 00:43:34,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:34,895 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 00:43:34,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:34,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506420366] [2023-12-22 00:43:34,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506420366] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:34,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:34,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:43:34,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509921951] [2023-12-22 00:43:34,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:34,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:43:34,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:34,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:43:34,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:43:34,896 INFO L87 Difference]: Start difference. First operand 3203 states and 4597 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 00:43:36,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:36,129 INFO L93 Difference]: Finished difference Result 6291 states and 8669 transitions. [2023-12-22 00:43:36,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:43:36,130 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 00:43:36,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:36,134 INFO L225 Difference]: With dead ends: 6291 [2023-12-22 00:43:36,134 INFO L226 Difference]: Without dead ends: 4657 [2023-12-22 00:43:36,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:43:36,136 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 3324 mSDsluCounter, 13681 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 15215 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:36,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 15215 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:43:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4657 states. [2023-12-22 00:43:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4657 to 4387. [2023-12-22 00:43:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 4385 states have (on average 1.3949828962371722) internal successors, (6117), 4386 states have internal predecessors, (6117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:36,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 6117 transitions. [2023-12-22 00:43:36,212 INFO L78 Accepts]: Start accepts. Automaton has 4387 states and 6117 transitions. Word has length 85 [2023-12-22 00:43:36,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:36,212 INFO L495 AbstractCegarLoop]: Abstraction has 4387 states and 6117 transitions. [2023-12-22 00:43:36,212 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 00:43:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4387 states and 6117 transitions. [2023-12-22 00:43:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 00:43:36,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:36,213 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 00:43:36,216 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 00:43:36,416 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 00:43:36,416 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:36,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1071010638, now seen corresponding path program 1 times [2023-12-22 00:43:36,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:36,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440183733] [2023-12-22 00:43:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:36,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:43:36,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:36,419 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 00:43:36,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:36,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:43:36,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:36,667 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 00:43:36,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:36,764 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 00:43:36,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440183733] [2023-12-22 00:43:36,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440183733] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:36,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:36,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:43:36,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112622633] [2023-12-22 00:43:36,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:36,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:43:36,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:36,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:43:36,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:43:36,767 INFO L87 Difference]: Start difference. First operand 4387 states and 6117 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 00:43:37,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:37,104 INFO L93 Difference]: Finished difference Result 12509 states and 16574 transitions. [2023-12-22 00:43:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:43:37,104 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 00:43:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:37,128 INFO L225 Difference]: With dead ends: 12509 [2023-12-22 00:43:37,128 INFO L226 Difference]: Without dead ends: 9691 [2023-12-22 00:43:37,131 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 00:43:37,132 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 4473 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:37,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 3253 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:43:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9691 states. [2023-12-22 00:43:37,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9691 to 9471. [2023-12-22 00:43:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9471 states, 9469 states have (on average 1.296335410286197) internal successors, (12275), 9470 states have internal predecessors, (12275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9471 states to 9471 states and 12275 transitions. [2023-12-22 00:43:37,352 INFO L78 Accepts]: Start accepts. Automaton has 9471 states and 12275 transitions. Word has length 87 [2023-12-22 00:43:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:37,353 INFO L495 AbstractCegarLoop]: Abstraction has 9471 states and 12275 transitions. [2023-12-22 00:43:37,353 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 00:43:37,353 INFO L276 IsEmpty]: Start isEmpty. Operand 9471 states and 12275 transitions. [2023-12-22 00:43:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 00:43:37,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:37,355 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 00:43:37,359 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 00:43:37,558 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 00:43:37,558 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:37,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 981905306, now seen corresponding path program 1 times [2023-12-22 00:43:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:37,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378826764] [2023-12-22 00:43:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:37,559 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 00:43:37,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:37,561 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 00:43:37,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:37,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:43:37,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:38,639 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 00:43:38,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:39,135 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 00:43:39,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:39,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378826764] [2023-12-22 00:43:39,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378826764] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:39,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:39,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:43:39,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444174228] [2023-12-22 00:43:39,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:39,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:43:39,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:39,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:43:39,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:43:39,137 INFO L87 Difference]: Start difference. First operand 9471 states and 12275 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 00:43:40,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:40,968 INFO L93 Difference]: Finished difference Result 14799 states and 18991 transitions. [2023-12-22 00:43:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:43:40,969 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 00:43:40,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:40,979 INFO L225 Difference]: With dead ends: 14799 [2023-12-22 00:43:40,979 INFO L226 Difference]: Without dead ends: 9589 [2023-12-22 00:43:40,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:43:40,986 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 16782 mSDsluCounter, 7891 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16782 SdHoareTripleChecker+Valid, 9415 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:40,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16782 Valid, 9415 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:43:40,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9589 states. [2023-12-22 00:43:41,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9589 to 9471. [2023-12-22 00:43:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9471 states, 9469 states have (on average 1.284507339740205) internal successors, (12163), 9470 states have internal predecessors, (12163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9471 states to 9471 states and 12163 transitions. [2023-12-22 00:43:41,276 INFO L78 Accepts]: Start accepts. Automaton has 9471 states and 12163 transitions. Word has length 132 [2023-12-22 00:43:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:41,276 INFO L495 AbstractCegarLoop]: Abstraction has 9471 states and 12163 transitions. [2023-12-22 00:43:41,276 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 00:43:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 9471 states and 12163 transitions. [2023-12-22 00:43:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 00:43:41,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:41,280 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 00:43:41,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 00:43:41,495 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 00:43:41,495 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:41,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:41,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1713206190, now seen corresponding path program 1 times [2023-12-22 00:43:41,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:41,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972384673] [2023-12-22 00:43:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:41,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:41,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:41,497 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 00:43:41,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:41,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:43:41,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:42,605 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 00:43:42,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:43,133 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 00:43:43,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:43,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972384673] [2023-12-22 00:43:43,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972384673] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:43,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:43,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:43:43,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312770312] [2023-12-22 00:43:43,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:43,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:43:43,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:43:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:43:43,136 INFO L87 Difference]: Start difference. First operand 9471 states and 12163 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 00:43:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:45,175 INFO L93 Difference]: Finished difference Result 16347 states and 20710 transitions. [2023-12-22 00:43:45,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 00:43:45,176 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 00:43:45,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:45,184 INFO L225 Difference]: With dead ends: 16347 [2023-12-22 00:43:45,184 INFO L226 Difference]: Without dead ends: 9473 [2023-12-22 00:43:45,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:43:45,189 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 17954 mSDsluCounter, 9382 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17954 SdHoareTripleChecker+Valid, 10906 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:45,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17954 Valid, 10906 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 00:43:45,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2023-12-22 00:43:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 9471. [2023-12-22 00:43:45,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9471 states, 9469 states have (on average 1.2735241313760692) internal successors, (12059), 9470 states have internal predecessors, (12059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9471 states to 9471 states and 12059 transitions. [2023-12-22 00:43:45,454 INFO L78 Accepts]: Start accepts. Automaton has 9471 states and 12059 transitions. Word has length 133 [2023-12-22 00:43:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:45,454 INFO L495 AbstractCegarLoop]: Abstraction has 9471 states and 12059 transitions. [2023-12-22 00:43:45,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9471 states and 12059 transitions. [2023-12-22 00:43:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-22 00:43:45,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:45,457 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 00:43:45,461 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 00:43:45,661 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 00:43:45,661 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:45,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1165065386, now seen corresponding path program 1 times [2023-12-22 00:43:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:45,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310327079] [2023-12-22 00:43:45,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:45,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:45,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:45,663 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 00:43:45,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 00:43:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:45,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:43:45,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:46,842 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 00:43:46,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:47,288 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 00:43:47,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:47,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310327079] [2023-12-22 00:43:47,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310327079] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:47,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:47,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:43:47,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318368276] [2023-12-22 00:43:47,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:47,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:43:47,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:43:47,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:43:47,290 INFO L87 Difference]: Start difference. First operand 9471 states and 12059 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 00:43:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:52,108 INFO L93 Difference]: Finished difference Result 37103 states and 46516 transitions. [2023-12-22 00:43:52,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 00:43:52,109 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 00:43:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:52,143 INFO L225 Difference]: With dead ends: 37103 [2023-12-22 00:43:52,144 INFO L226 Difference]: Without dead ends: 33821 [2023-12-22 00:43:52,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 00:43:52,154 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 17630 mSDsluCounter, 8122 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17630 SdHoareTripleChecker+Valid, 9646 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:52,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17630 Valid, 9646 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 00:43:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33821 states. [2023-12-22 00:43:52,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33821 to 9471. [2023-12-22 00:43:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9471 states, 9469 states have (on average 1.2676100961030732) internal successors, (12003), 9470 states have internal predecessors, (12003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9471 states to 9471 states and 12003 transitions. [2023-12-22 00:43:52,655 INFO L78 Accepts]: Start accepts. Automaton has 9471 states and 12003 transitions. Word has length 134 [2023-12-22 00:43:52,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:52,655 INFO L495 AbstractCegarLoop]: Abstraction has 9471 states and 12003 transitions. [2023-12-22 00:43:52,655 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 00:43:52,655 INFO L276 IsEmpty]: Start isEmpty. Operand 9471 states and 12003 transitions. [2023-12-22 00:43:52,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 00:43:52,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:52,659 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 00:43:52,676 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 00:43:52,862 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 00:43:52,863 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:52,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1487552498, now seen corresponding path program 1 times [2023-12-22 00:43:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:52,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482056310] [2023-12-22 00:43:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:52,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:43:52,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:52,865 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 00:43:52,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:52,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:43:52,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:54,207 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 00:43:54,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:54,762 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 00:43:54,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:54,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482056310] [2023-12-22 00:43:54,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482056310] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:54,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:54,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:43:54,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568883215] [2023-12-22 00:43:54,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:54,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:43:54,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:54,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:43:54,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:43:54,764 INFO L87 Difference]: Start difference. First operand 9471 states and 12003 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 00:43:57,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:57,948 INFO L93 Difference]: Finished difference Result 15583 states and 19532 transitions. [2023-12-22 00:43:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 00:43:57,948 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 00:43:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:57,963 INFO L225 Difference]: With dead ends: 15583 [2023-12-22 00:43:57,963 INFO L226 Difference]: Without dead ends: 14197 [2023-12-22 00:43:57,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 00:43:57,966 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 4752 mSDsluCounter, 23093 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 24656 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:57,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4752 Valid, 24656 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-22 00:43:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14197 states. [2023-12-22 00:43:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14197 to 8861. [2023-12-22 00:43:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 1.2738458065244385) internal successors, (11285), 8860 states have internal predecessors, (11285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 11285 transitions. [2023-12-22 00:43:58,337 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 11285 transitions. Word has length 135 [2023-12-22 00:43:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:58,337 INFO L495 AbstractCegarLoop]: Abstraction has 8861 states and 11285 transitions. [2023-12-22 00:43:58,337 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 00:43:58,337 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 11285 transitions. [2023-12-22 00:43:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 00:43:58,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:58,339 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 00:43:58,352 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 00:43:58,543 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 00:43:58,543 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:58,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash -758128962, now seen corresponding path program 1 times [2023-12-22 00:43:58,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:58,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190786598] [2023-12-22 00:43:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:58,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:43:58,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:58,546 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 00:43:58,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:43:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:58,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:43:58,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:59,920 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 00:43:59,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:00,408 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 00:44:00,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:00,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190786598] [2023-12-22 00:44:00,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190786598] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:00,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:00,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:44:00,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375115451] [2023-12-22 00:44:00,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:00,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:44:00,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:44:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:44:00,413 INFO L87 Difference]: Start difference. First operand 8861 states and 11285 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 00:44:02,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:44:02,163 INFO L93 Difference]: Finished difference Result 12487 states and 15738 transitions. [2023-12-22 00:44:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:44:02,164 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 00:44:02,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:44:02,171 INFO L225 Difference]: With dead ends: 12487 [2023-12-22 00:44:02,171 INFO L226 Difference]: Without dead ends: 9445 [2023-12-22 00:44:02,173 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 00:44:02,174 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 18267 mSDsluCounter, 6299 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18267 SdHoareTripleChecker+Valid, 7823 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:44:02,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18267 Valid, 7823 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:44:02,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9445 states. [2023-12-22 00:44:02,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9445 to 8861. [2023-12-22 00:44:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 1.267750310418783) internal successors, (11231), 8860 states have internal predecessors, (11231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 11231 transitions. [2023-12-22 00:44:02,561 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 11231 transitions. Word has length 135 [2023-12-22 00:44:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:44:02,561 INFO L495 AbstractCegarLoop]: Abstraction has 8861 states and 11231 transitions. [2023-12-22 00:44:02,561 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 00:44:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 11231 transitions. [2023-12-22 00:44:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:44:02,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:44:02,564 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 00:44:02,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-22 00:44:02,767 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 00:44:02,768 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:44:02,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:44:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2122535610, now seen corresponding path program 1 times [2023-12-22 00:44:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:44:02,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184542681] [2023-12-22 00:44:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:44:02,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:44:02,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:44:02,770 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 00:44:02,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:44:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:44:02,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:44:02,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:44:04,306 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 00:44:04,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:04,908 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 00:44:04,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:04,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184542681] [2023-12-22 00:44:04,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184542681] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:04,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:04,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:44:04,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094358096] [2023-12-22 00:44:04,909 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:04,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:44:04,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:04,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:44:04,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:44:04,910 INFO L87 Difference]: Start difference. First operand 8861 states and 11231 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 00:44:09,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:44:09,991 INFO L93 Difference]: Finished difference Result 14201 states and 17597 transitions. [2023-12-22 00:44:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:44:09,992 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 00:44:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:44:10,000 INFO L225 Difference]: With dead ends: 14201 [2023-12-22 00:44:10,000 INFO L226 Difference]: Without dead ends: 10617 [2023-12-22 00:44:10,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:44:10,004 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 2068 mSDsluCounter, 21954 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 23563 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:44:10,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2068 Valid, 23563 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 00:44:10,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10617 states. [2023-12-22 00:44:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10617 to 6115. [2023-12-22 00:44:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6115 states, 6113 states have (on average 1.2903647963356781) internal successors, (7888), 6114 states have internal predecessors, (7888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6115 states to 6115 states and 7888 transitions. [2023-12-22 00:44:10,318 INFO L78 Accepts]: Start accepts. Automaton has 6115 states and 7888 transitions. Word has length 136 [2023-12-22 00:44:10,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:44:10,318 INFO L495 AbstractCegarLoop]: Abstraction has 6115 states and 7888 transitions. [2023-12-22 00:44:10,318 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 00:44:10,318 INFO L276 IsEmpty]: Start isEmpty. Operand 6115 states and 7888 transitions. [2023-12-22 00:44:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:44:10,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:44:10,320 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 00:44:10,326 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 00:44:10,523 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 00:44:10,523 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:44:10,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:44:10,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1817726114, now seen corresponding path program 1 times [2023-12-22 00:44:10,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:44:10,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519664518] [2023-12-22 00:44:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:44:10,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:44:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:44:10,525 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 00:44:10,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:44:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:44:10,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:44:10,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:44:11,994 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 00:44:11,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:12,516 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 00:44:12,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:12,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519664518] [2023-12-22 00:44:12,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519664518] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:12,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:12,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:44:12,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70169326] [2023-12-22 00:44:12,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:12,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:44:12,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:44:12,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:44:12,518 INFO L87 Difference]: Start difference. First operand 6115 states and 7888 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 00:44:18,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:44:18,887 INFO L93 Difference]: Finished difference Result 14603 states and 18084 transitions. [2023-12-22 00:44:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:44:18,887 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 00:44:18,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:44:18,899 INFO L225 Difference]: With dead ends: 14603 [2023-12-22 00:44:18,899 INFO L226 Difference]: Without dead ends: 13541 [2023-12-22 00:44:18,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:44:18,903 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 2138 mSDsluCounter, 25366 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 26995 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:44:18,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 26995 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 00:44:18,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2023-12-22 00:44:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 11671. [2023-12-22 00:44:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11671 states, 11669 states have (on average 1.2454366269603223) internal successors, (14533), 11670 states have internal predecessors, (14533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11671 states to 11671 states and 14533 transitions. [2023-12-22 00:44:19,487 INFO L78 Accepts]: Start accepts. Automaton has 11671 states and 14533 transitions. Word has length 136 [2023-12-22 00:44:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:44:19,488 INFO L495 AbstractCegarLoop]: Abstraction has 11671 states and 14533 transitions. [2023-12-22 00:44:19,488 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 00:44:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 11671 states and 14533 transitions. [2023-12-22 00:44:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:44:19,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:44:19,490 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 00:44:19,510 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 00:44:19,693 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 00:44:19,694 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:44:19,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:44:19,694 INFO L85 PathProgramCache]: Analyzing trace with hash 466156766, now seen corresponding path program 1 times [2023-12-22 00:44:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:44:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129851140] [2023-12-22 00:44:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:44:19,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:44:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:44:19,696 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 00:44:19,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:44:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:44:19,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:44:19,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:44:21,089 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 00:44:21,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:21,640 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 00:44:21,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129851140] [2023-12-22 00:44:21,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129851140] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:21,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:44:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447939252] [2023-12-22 00:44:21,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:44:21,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:44:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:44:21,642 INFO L87 Difference]: Start difference. First operand 11671 states and 14533 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 00:44:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:44:29,219 INFO L93 Difference]: Finished difference Result 20175 states and 24823 transitions. [2023-12-22 00:44:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:44:29,220 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 00:44:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:44:29,236 INFO L225 Difference]: With dead ends: 20175 [2023-12-22 00:44:29,236 INFO L226 Difference]: Without dead ends: 16097 [2023-12-22 00:44:29,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:44:29,240 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 6676 mSDsluCounter, 22423 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6676 SdHoareTripleChecker+Valid, 24069 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:44:29,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6676 Valid, 24069 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 00:44:29,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16097 states. [2023-12-22 00:44:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16097 to 13826. [2023-12-22 00:44:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13826 states, 13824 states have (on average 1.2306857638888888) internal successors, (17013), 13825 states have internal predecessors, (17013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13826 states to 13826 states and 17013 transitions. [2023-12-22 00:44:30,094 INFO L78 Accepts]: Start accepts. Automaton has 13826 states and 17013 transitions. Word has length 136 [2023-12-22 00:44:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:44:30,094 INFO L495 AbstractCegarLoop]: Abstraction has 13826 states and 17013 transitions. [2023-12-22 00:44:30,094 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 00:44:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13826 states and 17013 transitions. [2023-12-22 00:44:30,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:44:30,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:44:30,097 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 00:44:30,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-22 00:44:30,301 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 00:44:30,301 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:44:30,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:44:30,301 INFO L85 PathProgramCache]: Analyzing trace with hash -825573446, now seen corresponding path program 1 times [2023-12-22 00:44:30,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:44:30,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826500400] [2023-12-22 00:44:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:44:30,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:44:30,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:44:30,303 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 00:44:30,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 00:44:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:44:30,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:44:30,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:44:31,857 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 00:44:31,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:32,553 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 00:44:32,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:32,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826500400] [2023-12-22 00:44:32,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826500400] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:32,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:32,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:44:32,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455010495] [2023-12-22 00:44:32,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:32,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:44:32,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:32,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:44:32,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:44:32,555 INFO L87 Difference]: Start difference. First operand 13826 states and 17013 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 00:44:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:44:41,253 INFO L93 Difference]: Finished difference Result 38111 states and 45576 transitions. [2023-12-22 00:44:41,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:44:41,254 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 00:44:41,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:44:41,283 INFO L225 Difference]: With dead ends: 38111 [2023-12-22 00:44:41,284 INFO L226 Difference]: Without dead ends: 33933 [2023-12-22 00:44:41,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:44:41,290 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 3861 mSDsluCounter, 19394 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3861 SdHoareTripleChecker+Valid, 21061 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:44:41,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3861 Valid, 21061 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 00:44:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33933 states. [2023-12-22 00:44:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33933 to 24666. [2023-12-22 00:44:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24666 states, 24664 states have (on average 1.2030084333441453) internal successors, (29671), 24665 states have internal predecessors, (29671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:42,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24666 states to 24666 states and 29671 transitions. [2023-12-22 00:44:42,985 INFO L78 Accepts]: Start accepts. Automaton has 24666 states and 29671 transitions. Word has length 136 [2023-12-22 00:44:42,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:44:42,985 INFO L495 AbstractCegarLoop]: Abstraction has 24666 states and 29671 transitions. [2023-12-22 00:44:42,985 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 00:44:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 24666 states and 29671 transitions. [2023-12-22 00:44:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 00:44:42,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:44:42,988 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:44:42,999 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 00:44:43,191 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 00:44:43,191 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:44:43,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:44:43,192 INFO L85 PathProgramCache]: Analyzing trace with hash 299177372, now seen corresponding path program 1 times [2023-12-22 00:44:43,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:44:43,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21205617] [2023-12-22 00:44:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:44:43,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:44:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:44:43,193 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 00:44:43,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:44:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:44:43,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:44:43,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:44:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:44:43,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:44:44,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:44,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21205617] [2023-12-22 00:44:44,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21205617] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:44,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:44,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:44:44,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673322193] [2023-12-22 00:44:44,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:44,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:44:44,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:44,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:44:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:44:44,602 INFO L87 Difference]: Start difference. First operand 24666 states and 29671 transitions. Second operand has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:33,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:33,943 INFO L93 Difference]: Finished difference Result 30749 states and 39646 transitions. [2023-12-22 00:46:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 00:46:33,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-22 00:46:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:33,968 INFO L225 Difference]: With dead ends: 30749 [2023-12-22 00:46:33,968 INFO L226 Difference]: Without dead ends: 29245 [2023-12-22 00:46:33,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 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 00:46:33,973 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 6697 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 6357 mSolverCounterSat, 3331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6697 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 9688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3331 IncrementalHoareTripleChecker+Valid, 6357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:33,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6697 Valid, 294 Invalid, 9688 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3331 Valid, 6357 Invalid, 0 Unknown, 0 Unchecked, 107.3s Time] [2023-12-22 00:46:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29245 states. [2023-12-22 00:46:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29245 to 27670. [2023-12-22 00:46:35,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27670 states, 27668 states have (on average 1.2113271649559056) internal successors, (33515), 27669 states have internal predecessors, (33515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27670 states to 27670 states and 33515 transitions. [2023-12-22 00:46:35,620 INFO L78 Accepts]: Start accepts. Automaton has 27670 states and 33515 transitions. Word has length 137 [2023-12-22 00:46:35,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:35,620 INFO L495 AbstractCegarLoop]: Abstraction has 27670 states and 33515 transitions. [2023-12-22 00:46:35,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:35,620 INFO L276 IsEmpty]: Start isEmpty. Operand 27670 states and 33515 transitions. [2023-12-22 00:46:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 00:46:35,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:35,630 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 00:46:35,635 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 00:46:35,832 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 00:46:35,832 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:35,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:35,833 INFO L85 PathProgramCache]: Analyzing trace with hash -82459398, now seen corresponding path program 1 times [2023-12-22 00:46:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:35,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383887249] [2023-12-22 00:46:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:35,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:46:35,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:35,834 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 00:46:35,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 00:46:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:36,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:46:36,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:38,334 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 00:46:38,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:39,260 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 00:46:39,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383887249] [2023-12-22 00:46:39,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383887249] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:39,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:39,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:46:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984716017] [2023-12-22 00:46:39,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:39,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:46:39,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:39,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:46:39,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:46:39,264 INFO L87 Difference]: Start difference. First operand 27670 states and 33515 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 00:46:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:59,645 INFO L93 Difference]: Finished difference Result 38518 states and 46523 transitions. [2023-12-22 00:46:59,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 00:46:59,645 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 00:46:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:59,683 INFO L225 Difference]: With dead ends: 38518 [2023-12-22 00:46:59,683 INFO L226 Difference]: Without dead ends: 35210 [2023-12-22 00:46:59,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4430 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 00:46:59,694 INFO L413 NwaCegarLoop]: 1737 mSDtfsCounter, 6803 mSDsluCounter, 36735 mSDsCounter, 0 mSdLazyCounter, 6233 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6803 SdHoareTripleChecker+Valid, 38472 SdHoareTripleChecker+Invalid, 6258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:59,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6803 Valid, 38472 Invalid, 6258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 6233 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-12-22 00:46:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35210 states. [2023-12-22 00:47:01,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35210 to 21788. [2023-12-22 00:47:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21788 states, 21786 states have (on average 1.219682364821445) internal successors, (26572), 21787 states have internal predecessors, (26572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21788 states to 21788 states and 26572 transitions. [2023-12-22 00:47:01,214 INFO L78 Accepts]: Start accepts. Automaton has 21788 states and 26572 transitions. Word has length 187 [2023-12-22 00:47:01,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:01,214 INFO L495 AbstractCegarLoop]: Abstraction has 21788 states and 26572 transitions. [2023-12-22 00:47:01,215 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 00:47:01,215 INFO L276 IsEmpty]: Start isEmpty. Operand 21788 states and 26572 transitions. [2023-12-22 00:47:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 00:47:01,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:01,222 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 00:47:01,228 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 00:47:01,426 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 00:47:01,426 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:01,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2071920250, now seen corresponding path program 2 times [2023-12-22 00:47:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:01,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660542918] [2023-12-22 00:47:01,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:47:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:47:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:01,428 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 00:47:01,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:47:01,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:47:01,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:47:01,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:47:01,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:03,112 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 00:47:03,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:47:03,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:03,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660542918] [2023-12-22 00:47:03,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660542918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:47:03,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:47:03,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:47:03,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341242971] [2023-12-22 00:47:03,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:47:03,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:47:03,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:03,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:47:03,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:47:03,114 INFO L87 Difference]: Start difference. First operand 21788 states and 26572 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 00:47:04,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:04,745 INFO L93 Difference]: Finished difference Result 29222 states and 35818 transitions. [2023-12-22 00:47:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:47:04,747 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 00:47:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:04,774 INFO L225 Difference]: With dead ends: 29222 [2023-12-22 00:47:04,774 INFO L226 Difference]: Without dead ends: 25412 [2023-12-22 00:47:04,779 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 00:47:04,780 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1794 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:04,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 3330 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:47:04,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25412 states. [2023-12-22 00:47:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25412 to 21756. [2023-12-22 00:47:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21756 states, 21754 states have (on average 1.2135239496184609) internal successors, (26399), 21755 states have internal predecessors, (26399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:06,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21756 states to 21756 states and 26399 transitions. [2023-12-22 00:47:06,361 INFO L78 Accepts]: Start accepts. Automaton has 21756 states and 26399 transitions. Word has length 187 [2023-12-22 00:47:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:06,362 INFO L495 AbstractCegarLoop]: Abstraction has 21756 states and 26399 transitions. [2023-12-22 00:47:06,362 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 00:47:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 21756 states and 26399 transitions. [2023-12-22 00:47:06,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 00:47:06,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:06,370 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 00:47:06,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 00:47:06,573 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 00:47:06,573 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:06,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1868341474, now seen corresponding path program 2 times [2023-12-22 00:47:06,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:06,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374373376] [2023-12-22 00:47:06,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:47:06,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:47:06,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:06,575 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 00:47:06,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 00:47:06,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:47:06,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:47:06,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:47:06,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:08,476 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 00:47:08,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:47:08,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:08,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374373376] [2023-12-22 00:47:08,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374373376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:47:08,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:47:08,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:47:08,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674970955] [2023-12-22 00:47:08,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:47:08,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:47:08,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:08,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:47:08,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:47:08,478 INFO L87 Difference]: Start difference. First operand 21756 states and 26399 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 00:47:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:10,423 INFO L93 Difference]: Finished difference Result 27303 states and 33377 transitions. [2023-12-22 00:47:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:47:10,424 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 00:47:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:10,459 INFO L225 Difference]: With dead ends: 27303 [2023-12-22 00:47:10,459 INFO L226 Difference]: Without dead ends: 25850 [2023-12-22 00:47:10,465 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 00:47:10,466 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1685 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:10,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 3445 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:47:10,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25850 states. [2023-12-22 00:47:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25850 to 22868. [2023-12-22 00:47:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22868 states, 22866 states have (on average 1.2100498556809236) internal successors, (27669), 22867 states have internal predecessors, (27669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22868 states to 22868 states and 27669 transitions. [2023-12-22 00:47:12,218 INFO L78 Accepts]: Start accepts. Automaton has 22868 states and 27669 transitions. Word has length 187 [2023-12-22 00:47:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:12,218 INFO L495 AbstractCegarLoop]: Abstraction has 22868 states and 27669 transitions. [2023-12-22 00:47:12,218 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 00:47:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 22868 states and 27669 transitions. [2023-12-22 00:47:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 00:47:12,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:12,226 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 00:47:12,232 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 (36)] Forceful destruction successful, exit code 0 [2023-12-22 00:47:12,429 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 00:47:12,429 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:12,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:12,429 INFO L85 PathProgramCache]: Analyzing trace with hash 415541406, now seen corresponding path program 2 times [2023-12-22 00:47:12,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:12,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944339562] [2023-12-22 00:47:12,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:47:12,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:47:12,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:12,431 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 00:47:12,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:47:12,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:47:12,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:47:12,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:47:12,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:14,367 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 00:47:14,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:47:14,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:14,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944339562] [2023-12-22 00:47:14,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944339562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:47:14,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:47:14,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:47:14,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167406501] [2023-12-22 00:47:14,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:47:14,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:47:14,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:14,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:47:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:47:14,369 INFO L87 Difference]: Start difference. First operand 22868 states and 27669 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 00:47:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:16,395 INFO L93 Difference]: Finished difference Result 30350 states and 37060 transitions. [2023-12-22 00:47:16,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:47:16,396 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 00:47:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:16,429 INFO L225 Difference]: With dead ends: 30350 [2023-12-22 00:47:16,429 INFO L226 Difference]: Without dead ends: 27202 [2023-12-22 00:47:16,437 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 00:47:16,438 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 3121 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3121 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:16,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3121 Valid, 3419 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:47:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27202 states. [2023-12-22 00:47:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27202 to 25343. [2023-12-22 00:47:18,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25343 states, 25341 states have (on average 1.2039777435776016) internal successors, (30510), 25342 states have internal predecessors, (30510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25343 states to 25343 states and 30510 transitions. [2023-12-22 00:47:18,262 INFO L78 Accepts]: Start accepts. Automaton has 25343 states and 30510 transitions. Word has length 187 [2023-12-22 00:47:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:18,262 INFO L495 AbstractCegarLoop]: Abstraction has 25343 states and 30510 transitions. [2023-12-22 00:47:18,262 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 00:47:18,262 INFO L276 IsEmpty]: Start isEmpty. Operand 25343 states and 30510 transitions. [2023-12-22 00:47:18,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-22 00:47:18,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:18,270 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 00:47:18,274 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 00:47:18,473 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 00:47:18,474 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:18,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash -876188806, now seen corresponding path program 2 times [2023-12-22 00:47:18,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:18,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737674798] [2023-12-22 00:47:18,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:47:18,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:47:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:18,477 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 00:47:18,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:47:18,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:47:18,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:47:18,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:47:18,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:20,392 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 00:47:20,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:47:20,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737674798] [2023-12-22 00:47:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737674798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:47:20,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:47:20,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:47:20,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003157115] [2023-12-22 00:47:20,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:47:20,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:47:20,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:20,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:47:20,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:47:20,395 INFO L87 Difference]: Start difference. First operand 25343 states and 30510 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 00:47:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:22,223 INFO L93 Difference]: Finished difference Result 31315 states and 38007 transitions. [2023-12-22 00:47:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:47:22,224 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 00:47:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:22,254 INFO L225 Difference]: With dead ends: 31315 [2023-12-22 00:47:22,254 INFO L226 Difference]: Without dead ends: 29344 [2023-12-22 00:47:22,262 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 00:47:22,263 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 4629 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:22,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4629 Valid, 3371 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:47:22,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29344 states. [2023-12-22 00:47:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29344 to 27086. [2023-12-22 00:47:24,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27086 states, 27084 states have (on average 1.2007827499630779) internal successors, (32522), 27085 states have internal predecessors, (32522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27086 states to 27086 states and 32522 transitions. [2023-12-22 00:47:24,065 INFO L78 Accepts]: Start accepts. Automaton has 27086 states and 32522 transitions. Word has length 187 [2023-12-22 00:47:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:24,065 INFO L495 AbstractCegarLoop]: Abstraction has 27086 states and 32522 transitions. [2023-12-22 00:47:24,065 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 00:47:24,065 INFO L276 IsEmpty]: Start isEmpty. Operand 27086 states and 32522 transitions. [2023-12-22 00:47:24,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-22 00:47:24,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:24,075 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 00:47:24,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 00:47:24,278 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 00:47:24,278 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:24,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash -800711852, now seen corresponding path program 1 times [2023-12-22 00:47:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:24,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121106076] [2023-12-22 00:47:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:24,279 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 00:47:24,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:24,286 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 00:47:24,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:47:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:24,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:47:24,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:26,949 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 00:47:26,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:28,093 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 00:47:28,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:28,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121106076] [2023-12-22 00:47:28,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121106076] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:28,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:28,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:47:28,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047603460] [2023-12-22 00:47:28,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:28,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:47:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:47:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:47:28,098 INFO L87 Difference]: Start difference. First operand 27086 states and 32522 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 00:47:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:47:41,209 INFO L93 Difference]: Finished difference Result 49162 states and 58280 transitions. [2023-12-22 00:47:41,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 00:47:41,209 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 00:47:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:47:41,249 INFO L225 Difference]: With dead ends: 49162 [2023-12-22 00:47:41,249 INFO L226 Difference]: Without dead ends: 46443 [2023-12-22 00:47:41,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 00:47:41,257 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 2051 mSDsluCounter, 37335 mSDsCounter, 0 mSdLazyCounter, 4889 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 38986 SdHoareTripleChecker+Invalid, 4905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:47:41,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2051 Valid, 38986 Invalid, 4905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 4889 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-22 00:47:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46443 states. [2023-12-22 00:47:43,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46443 to 25562. [2023-12-22 00:47:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25562 states, 25560 states have (on average 1.204851330203443) internal successors, (30796), 25561 states have internal predecessors, (30796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:47:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25562 states to 25562 states and 30796 transitions. [2023-12-22 00:47:43,293 INFO L78 Accepts]: Start accepts. Automaton has 25562 states and 30796 transitions. Word has length 188 [2023-12-22 00:47:43,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:47:43,293 INFO L495 AbstractCegarLoop]: Abstraction has 25562 states and 30796 transitions. [2023-12-22 00:47:43,293 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 00:47:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand 25562 states and 30796 transitions. [2023-12-22 00:47:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-22 00:47:43,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:47:43,299 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 00:47:43,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-22 00:47:43,502 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 00:47:43,503 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:47:43,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:47:43,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1280180692, now seen corresponding path program 1 times [2023-12-22 00:47:43,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:47:43,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096730813] [2023-12-22 00:47:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:47:43,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:47:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:47:43,505 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 00:47:43,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:47:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:47:43,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:47:43,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:47:46,138 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 00:47:46,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:47:47,314 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 00:47:47,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:47:47,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096730813] [2023-12-22 00:47:47,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096730813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:47:47,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:47:47,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:47:47,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533927842] [2023-12-22 00:47:47,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:47:47,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:47:47,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:47:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:47:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:47:47,316 INFO L87 Difference]: Start difference. First operand 25562 states and 30796 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 00:48:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:11,958 INFO L93 Difference]: Finished difference Result 37586 states and 44891 transitions. [2023-12-22 00:48:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 00:48:11,958 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 00:48:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:11,990 INFO L225 Difference]: With dead ends: 37586 [2023-12-22 00:48:11,990 INFO L226 Difference]: Without dead ends: 31480 [2023-12-22 00:48:11,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5609 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 00:48:11,999 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 5402 mSDsluCounter, 37085 mSDsCounter, 0 mSdLazyCounter, 6784 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 38850 SdHoareTripleChecker+Invalid, 6816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 6784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:11,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5402 Valid, 38850 Invalid, 6816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 6784 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-22 00:48:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31480 states. [2023-12-22 00:48:14,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31480 to 25975. [2023-12-22 00:48:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25975 states, 25973 states have (on average 1.2025950025025989) internal successors, (31235), 25974 states have internal predecessors, (31235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25975 states to 25975 states and 31235 transitions. [2023-12-22 00:48:14,061 INFO L78 Accepts]: Start accepts. Automaton has 25975 states and 31235 transitions. Word has length 188 [2023-12-22 00:48:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:14,062 INFO L495 AbstractCegarLoop]: Abstraction has 25975 states and 31235 transitions. [2023-12-22 00:48:14,062 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 00:48:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 25975 states and 31235 transitions. [2023-12-22 00:48:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-22 00:48:14,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:14,066 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 00:48:14,070 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 00:48:14,270 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 00:48:14,270 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:14,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash -108750216, now seen corresponding path program 1 times [2023-12-22 00:48:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:14,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788474968] [2023-12-22 00:48:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:48:14,271 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 00:48:14,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:14,272 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 00:48:14,274 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 (41)] Waiting until timeout for monitored process [2023-12-22 00:48:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:48:14,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:48:14,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:17,140 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 00:48:17,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:48:18,353 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 00:48:18,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:18,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788474968] [2023-12-22 00:48:18,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788474968] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:48:18,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:48:18,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:48:18,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133712354] [2023-12-22 00:48:18,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:48:18,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:48:18,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:18,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:48:18,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:48:18,355 INFO L87 Difference]: Start difference. First operand 25975 states and 31235 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 00:48:45,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:45,190 INFO L93 Difference]: Finished difference Result 37603 states and 44829 transitions. [2023-12-22 00:48:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:48:45,192 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 00:48:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:45,225 INFO L225 Difference]: With dead ends: 37603 [2023-12-22 00:48:45,225 INFO L226 Difference]: Without dead ends: 31459 [2023-12-22 00:48:45,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7024 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:48:45,235 INFO L413 NwaCegarLoop]: 1749 mSDtfsCounter, 5471 mSDsluCounter, 37013 mSDsCounter, 0 mSdLazyCounter, 7230 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5471 SdHoareTripleChecker+Valid, 38762 SdHoareTripleChecker+Invalid, 7261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 7230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:45,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5471 Valid, 38762 Invalid, 7261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 7230 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-22 00:48:45,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31459 states. [2023-12-22 00:48:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31459 to 25405. [2023-12-22 00:48:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25405 states, 25403 states have (on average 1.200803054757312) internal successors, (30504), 25404 states have internal predecessors, (30504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25405 states to 25405 states and 30504 transitions. [2023-12-22 00:48:47,411 INFO L78 Accepts]: Start accepts. Automaton has 25405 states and 30504 transitions. Word has length 188 [2023-12-22 00:48:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:47,411 INFO L495 AbstractCegarLoop]: Abstraction has 25405 states and 30504 transitions. [2023-12-22 00:48:47,411 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 00:48:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 25405 states and 30504 transitions. [2023-12-22 00:48:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-22 00:48:47,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:47,416 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 00:48:47,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-22 00:48:47,619 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 00:48:47,619 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:47,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:47,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1893069950, now seen corresponding path program 1 times [2023-12-22 00:48:47,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:47,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361998351] [2023-12-22 00:48:47,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:48:47,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:48:47,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:47,621 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 00:48:47,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 00:48:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:48:47,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:48:47,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:50,485 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 00:48:50,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:48:52,008 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 00:48:52,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361998351] [2023-12-22 00:48:52,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361998351] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:48:52,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:48:52,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:48:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638930852] [2023-12-22 00:48:52,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:48:52,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:48:52,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:52,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:48:52,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:48:52,011 INFO L87 Difference]: Start difference. First operand 25405 states and 30504 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 00:49:15,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:15,795 INFO L93 Difference]: Finished difference Result 54239 states and 63891 transitions. [2023-12-22 00:49:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 00:49:15,796 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 00:49:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:15,844 INFO L225 Difference]: With dead ends: 54239 [2023-12-22 00:49:15,844 INFO L226 Difference]: Without dead ends: 50237 [2023-12-22 00:49:15,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 00:49:15,854 INFO L413 NwaCegarLoop]: 1707 mSDtfsCounter, 2550 mSDsluCounter, 37987 mSDsCounter, 0 mSdLazyCounter, 6636 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2550 SdHoareTripleChecker+Valid, 39694 SdHoareTripleChecker+Invalid, 6659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 6636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:15,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2550 Valid, 39694 Invalid, 6659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 6636 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-12-22 00:49:15,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50237 states. [2023-12-22 00:49:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50237 to 45373. [2023-12-22 00:49:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45373 states, 45371 states have (on average 1.1815036036234599) internal successors, (53606), 45372 states have internal predecessors, (53606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45373 states to 45373 states and 53606 transitions. [2023-12-22 00:49:20,021 INFO L78 Accepts]: Start accepts. Automaton has 45373 states and 53606 transitions. Word has length 189 [2023-12-22 00:49:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:20,021 INFO L495 AbstractCegarLoop]: Abstraction has 45373 states and 53606 transitions. [2023-12-22 00:49:20,022 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 00:49:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 45373 states and 53606 transitions. [2023-12-22 00:49:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-22 00:49:20,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:20,041 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 00:49:20,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-22 00:49:20,244 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 00:49:20,245 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:20,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:20,246 INFO L85 PathProgramCache]: Analyzing trace with hash -338951878, now seen corresponding path program 2 times [2023-12-22 00:49:20,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:20,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325143543] [2023-12-22 00:49:20,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:49:20,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:49:20,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:20,247 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 00:49:20,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:49:20,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:49:20,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:49:20,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:49:20,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:22,694 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 00:49:22,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:49:22,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:22,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325143543] [2023-12-22 00:49:22,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325143543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:49:22,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:49:22,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:49:22,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954741733] [2023-12-22 00:49:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:49:22,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:49:22,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:22,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:49:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:49:22,696 INFO L87 Difference]: Start difference. First operand 45373 states and 53606 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 00:49:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:27,010 INFO L93 Difference]: Finished difference Result 52957 states and 63151 transitions. [2023-12-22 00:49:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:49:27,010 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 00:49:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:27,062 INFO L225 Difference]: With dead ends: 52957 [2023-12-22 00:49:27,063 INFO L226 Difference]: Without dead ends: 49555 [2023-12-22 00:49:27,069 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 00:49:27,070 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 4635 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:27,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 3311 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:49:27,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49555 states. [2023-12-22 00:49:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49555 to 47335. [2023-12-22 00:49:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47335 states, 47333 states have (on average 1.1788815414193057) internal successors, (55800), 47334 states have internal predecessors, (55800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47335 states to 47335 states and 55800 transitions. [2023-12-22 00:49:31,648 INFO L78 Accepts]: Start accepts. Automaton has 47335 states and 55800 transitions. Word has length 238 [2023-12-22 00:49:31,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:31,648 INFO L495 AbstractCegarLoop]: Abstraction has 47335 states and 55800 transitions. [2023-12-22 00:49:31,648 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 00:49:31,648 INFO L276 IsEmpty]: Start isEmpty. Operand 47335 states and 55800 transitions. [2023-12-22 00:49:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 00:49:31,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:31,673 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 00:49:31,676 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 00:49:31,876 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 00:49:31,876 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:31,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:31,876 INFO L85 PathProgramCache]: Analyzing trace with hash -634274632, now seen corresponding path program 1 times [2023-12-22 00:49:31,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:31,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775414234] [2023-12-22 00:49:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:31,877 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 00:49:31,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:31,878 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 00:49:31,879 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 (44)] Waiting until timeout for monitored process [2023-12-22 00:49:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:32,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:49:32,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:35,113 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 00:49:35,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:36,483 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 00:49:36,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:36,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775414234] [2023-12-22 00:49:36,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775414234] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:36,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:36,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:49:36,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468974624] [2023-12-22 00:49:36,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:36,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:49:36,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:36,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:49:36,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:49:36,485 INFO L87 Difference]: Start difference. First operand 47335 states and 55800 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 00:50:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:36,304 INFO L93 Difference]: Finished difference Result 62534 states and 73539 transitions. [2023-12-22 00:50:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-22 00:50:36,304 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 00:50:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:36,358 INFO L225 Difference]: With dead ends: 62534 [2023-12-22 00:50:36,358 INFO L226 Difference]: Without dead ends: 57170 [2023-12-22 00:50:36,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16809 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=5842, Invalid=48214, Unknown=0, NotChecked=0, Total=54056 [2023-12-22 00:50:36,375 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 4532 mSDsluCounter, 53134 mSDsCounter, 0 mSdLazyCounter, 14347 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 54997 SdHoareTripleChecker+Invalid, 14381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 14347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:36,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 54997 Invalid, 14381 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [34 Valid, 14347 Invalid, 0 Unknown, 0 Unchecked, 19.6s Time] [2023-12-22 00:50:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57170 states. [2023-12-22 00:50:39,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57170 to 28448. [2023-12-22 00:50:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28448 states, 28446 states have (on average 1.2004851297194685) internal successors, (34149), 28447 states have internal predecessors, (34149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28448 states to 28448 states and 34149 transitions. [2023-12-22 00:50:39,386 INFO L78 Accepts]: Start accepts. Automaton has 28448 states and 34149 transitions. Word has length 239 [2023-12-22 00:50:39,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:39,392 INFO L495 AbstractCegarLoop]: Abstraction has 28448 states and 34149 transitions. [2023-12-22 00:50:39,392 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 00:50:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 28448 states and 34149 transitions. [2023-12-22 00:50:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 00:50:39,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:39,402 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 00:50:39,418 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 00:50:39,606 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 00:50:39,606 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:39,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash -162044140, now seen corresponding path program 2 times [2023-12-22 00:50:39,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:39,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147731475] [2023-12-22 00:50:39,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:50:39,607 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 00:50:39,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:39,608 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 00:50:39,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:50:39,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:50:39,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:50:39,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:50:39,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:43,475 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 00:50:43,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:50:45,273 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 00:50:45,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:45,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147731475] [2023-12-22 00:50:45,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147731475] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:50:45,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:50:45,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:50:45,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51735478] [2023-12-22 00:50:45,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:50:45,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:50:45,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:45,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:50:45,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:50:45,275 INFO L87 Difference]: Start difference. First operand 28448 states and 34149 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 00:51:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:51:41,922 INFO L93 Difference]: Finished difference Result 61051 states and 71746 transitions. [2023-12-22 00:51:41,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-12-22 00:51:41,922 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 00:51:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:51:41,980 INFO L225 Difference]: With dead ends: 61051 [2023-12-22 00:51:41,980 INFO L226 Difference]: Without dead ends: 58489 [2023-12-22 00:51:41,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13717 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=5081, Invalid=40929, Unknown=0, NotChecked=0, Total=46010 [2023-12-22 00:51:41,992 INFO L413 NwaCegarLoop]: 1833 mSDtfsCounter, 5636 mSDsluCounter, 52464 mSDsCounter, 0 mSdLazyCounter, 13380 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5636 SdHoareTripleChecker+Valid, 54297 SdHoareTripleChecker+Invalid, 13410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:51:41,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5636 Valid, 54297 Invalid, 13410 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [30 Valid, 13380 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2023-12-22 00:51:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58489 states. [2023-12-22 00:51:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58489 to 33466. [2023-12-22 00:51:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33466 states, 33464 states have (on average 1.189487210136266) internal successors, (39805), 33465 states have internal predecessors, (39805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33466 states to 33466 states and 39805 transitions. [2023-12-22 00:51:46,447 INFO L78 Accepts]: Start accepts. Automaton has 33466 states and 39805 transitions. Word has length 239 [2023-12-22 00:51:46,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:51:46,447 INFO L495 AbstractCegarLoop]: Abstraction has 33466 states and 39805 transitions. [2023-12-22 00:51:46,447 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 00:51:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 33466 states and 39805 transitions. [2023-12-22 00:51:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 00:51:46,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:51:46,459 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 00:51:46,466 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 00:51:46,664 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 00:51:46,664 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:51:46,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:51:46,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1918848404, now seen corresponding path program 2 times [2023-12-22 00:51:46,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:51:46,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122648812] [2023-12-22 00:51:46,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:51:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:51:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:51:46,666 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 00:51:46,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:51:46,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:51:46,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:51:46,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:51:46,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:51:50,141 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 00:51:50,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:51,514 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 00:51:51,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122648812] [2023-12-22 00:51:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122648812] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:51,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:51,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:51:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869487919] [2023-12-22 00:51:51,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:51,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:51:51,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:51,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:51:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:51:51,516 INFO L87 Difference]: Start difference. First operand 33466 states and 39805 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 00:52:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:52:51,026 INFO L93 Difference]: Finished difference Result 46629 states and 55081 transitions. [2023-12-22 00:52:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2023-12-22 00:52:51,027 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 00:52:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:52:51,064 INFO L225 Difference]: With dead ends: 46629 [2023-12-22 00:52:51,065 INFO L226 Difference]: Without dead ends: 40474 [2023-12-22 00:52:51,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19972 ImplicationChecksByTransitivity, 41.4s TimeCoverageRelationStatistics Valid=6647, Invalid=55105, Unknown=0, NotChecked=0, Total=61752 [2023-12-22 00:52:51,077 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 4542 mSDsluCounter, 42142 mSDsCounter, 0 mSdLazyCounter, 11251 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 43985 SdHoareTripleChecker+Invalid, 11302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 11251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:52:51,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4542 Valid, 43985 Invalid, 11302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 11251 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2023-12-22 00:52:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40474 states. [2023-12-22 00:52:55,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40474 to 34023. [2023-12-22 00:52:55,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34023 states, 34021 states have (on average 1.187178507392493) internal successors, (40389), 34022 states have internal predecessors, (40389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34023 states to 34023 states and 40389 transitions. [2023-12-22 00:52:55,664 INFO L78 Accepts]: Start accepts. Automaton has 34023 states and 40389 transitions. Word has length 239 [2023-12-22 00:52:55,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:52:55,665 INFO L495 AbstractCegarLoop]: Abstraction has 34023 states and 40389 transitions. [2023-12-22 00:52:55,665 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 00:52:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 34023 states and 40389 transitions. [2023-12-22 00:52:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-22 00:52:55,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:52:55,677 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 00:52:55,683 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 00:52:55,881 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 00:52:55,882 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:52:55,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:52:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 529917496, now seen corresponding path program 2 times [2023-12-22 00:52:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:52:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628060882] [2023-12-22 00:52:55,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:52:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:52:55,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:52:55,884 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 00:52:55,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:52:56,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:52:56,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:52:56,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:52:56,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:52:59,796 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 00:52:59,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:53:01,671 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 00:53:01,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:53:01,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628060882] [2023-12-22 00:53:01,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628060882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:53:01,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:53:01,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:53:01,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474457703] [2023-12-22 00:53:01,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:53:01,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:53:01,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:53:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:53:01,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:53:01,673 INFO L87 Difference]: Start difference. First operand 34023 states and 40389 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 00:54:11,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:54:11,875 INFO L93 Difference]: Finished difference Result 46798 states and 55244 transitions. [2023-12-22 00:54:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2023-12-22 00:54:11,875 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 00:54:11,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:54:11,914 INFO L225 Difference]: With dead ends: 46798 [2023-12-22 00:54:11,915 INFO L226 Difference]: Without dead ends: 40505 [2023-12-22 00:54:11,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23446 ImplicationChecksByTransitivity, 43.1s TimeCoverageRelationStatistics Valid=7432, Invalid=64124, Unknown=0, NotChecked=0, Total=71556 [2023-12-22 00:54:11,925 INFO L413 NwaCegarLoop]: 1900 mSDtfsCounter, 5874 mSDsluCounter, 52273 mSDsCounter, 0 mSdLazyCounter, 15645 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5874 SdHoareTripleChecker+Valid, 54173 SdHoareTripleChecker+Invalid, 15687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 15645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:54:11,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5874 Valid, 54173 Invalid, 15687 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [42 Valid, 15645 Invalid, 0 Unknown, 0 Unchecked, 23.4s Time] [2023-12-22 00:54:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40505 states. [2023-12-22 00:54:16,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40505 to 33571. [2023-12-22 00:54:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33571 states, 33569 states have (on average 1.1849921058119097) internal successors, (39779), 33570 states have internal predecessors, (39779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:54:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33571 states to 33571 states and 39779 transitions. [2023-12-22 00:54:16,414 INFO L78 Accepts]: Start accepts. Automaton has 33571 states and 39779 transitions. Word has length 239 [2023-12-22 00:54:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:54:16,414 INFO L495 AbstractCegarLoop]: Abstraction has 33571 states and 39779 transitions. [2023-12-22 00:54:16,414 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 00:54:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 33571 states and 39779 transitions. [2023-12-22 00:54:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-22 00:54:16,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:54:16,428 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 00:54:16,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-22 00:54:16,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:54:16,632 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:54:16,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:54:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash -62721806, now seen corresponding path program 2 times [2023-12-22 00:54:16,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:54:16,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605804974] [2023-12-22 00:54:16,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:54:16,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:54:16,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:54:16,634 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 00:54:16,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:54:16,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:54:16,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:54:16,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:54:16,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:54:17,155 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 00:54:17,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:54:17,586 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 00:54:17,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:54:17,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605804974] [2023-12-22 00:54:17,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605804974] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:54:17,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:54:17,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-22 00:54:17,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640318938] [2023-12-22 00:54:17,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:54:17,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 00:54:17,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:54:17,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 00:54:17,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-22 00:54:17,588 INFO L87 Difference]: Start difference. First operand 33571 states and 39779 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 00:54:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:54:25,862 INFO L93 Difference]: Finished difference Result 69774 states and 80883 transitions. [2023-12-22 00:54:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 00:54:25,863 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 00:54:25,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:54:25,911 INFO L225 Difference]: With dead ends: 69774 [2023-12-22 00:54:25,911 INFO L226 Difference]: Without dead ends: 45882 [2023-12-22 00:54:25,919 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 00:54:25,920 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 8748 mSDsluCounter, 6759 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8748 SdHoareTripleChecker+Valid, 8436 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:54:25,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8748 Valid, 8436 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:54:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45882 states. [2023-12-22 00:54:31,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45882 to 40192. [2023-12-22 00:54:31,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40192 states, 40190 states have (on average 1.1703906444389152) internal successors, (47038), 40191 states have internal predecessors, (47038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:54:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40192 states to 40192 states and 47038 transitions. [2023-12-22 00:54:31,882 INFO L78 Accepts]: Start accepts. Automaton has 40192 states and 47038 transitions. Word has length 240 [2023-12-22 00:54:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:54:31,896 INFO L495 AbstractCegarLoop]: Abstraction has 40192 states and 47038 transitions. [2023-12-22 00:54:31,896 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 00:54:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 40192 states and 47038 transitions. [2023-12-22 00:54:31,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-22 00:54:31,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:54:31,910 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 00:54:31,917 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 00:54:32,114 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 00:54:32,115 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:54:32,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:54:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash 725759938, now seen corresponding path program 2 times [2023-12-22 00:54:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:54:32,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560681729] [2023-12-22 00:54:32,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:54:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 00:54:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:54:32,117 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 00:54:32,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 00:54:32,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:54:32,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:54:32,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:54:32,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:54:37,044 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 00:54:37,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:54:39,172 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 00:54:39,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:54:39,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560681729] [2023-12-22 00:54:39,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560681729] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:54:39,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:54:39,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:54:39,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369778926] [2023-12-22 00:54:39,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:54:39,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:54:39,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:54:39,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:54:39,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:54:39,174 INFO L87 Difference]: Start difference. First operand 40192 states and 47038 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 00:55:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:55:17,786 INFO L93 Difference]: Finished difference Result 80389 states and 93127 transitions. [2023-12-22 00:55:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-12-22 00:55:17,787 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 240 [2023-12-22 00:55:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:55:17,858 INFO L225 Difference]: With dead ends: 80389 [2023-12-22 00:55:17,859 INFO L226 Difference]: Without dead ends: 76159 [2023-12-22 00:55:17,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5921 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=2292, Invalid=20660, Unknown=0, NotChecked=0, Total=22952 [2023-12-22 00:55:17,868 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 6668 mSDsluCounter, 47346 mSDsCounter, 0 mSdLazyCounter, 9540 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6668 SdHoareTripleChecker+Valid, 49089 SdHoareTripleChecker+Invalid, 9563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 9540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:55:17,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6668 Valid, 49089 Invalid, 9563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 9540 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2023-12-22 00:55:17,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76159 states. [2023-12-22 00:55:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76159 to 70054. [2023-12-22 00:55:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70054 states, 70052 states have (on average 1.1597099297664593) internal successors, (81240), 70053 states have internal predecessors, (81240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70054 states to 70054 states and 81240 transitions. [2023-12-22 00:55:28,937 INFO L78 Accepts]: Start accepts. Automaton has 70054 states and 81240 transitions. Word has length 240 [2023-12-22 00:55:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:55:28,938 INFO L495 AbstractCegarLoop]: Abstraction has 70054 states and 81240 transitions. [2023-12-22 00:55:28,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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 00:55:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 70054 states and 81240 transitions. [2023-12-22 00:55:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 00:55:29,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:55:29,086 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:29,090 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 (49)] Ended with exit code 0 [2023-12-22 00:55:29,290 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 00:55:29,290 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:55:29,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:55:29,290 INFO L85 PathProgramCache]: Analyzing trace with hash 733378732, now seen corresponding path program 1 times [2023-12-22 00:55:29,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:55:29,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491675128] [2023-12-22 00:55:29,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:55:29,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:55:29,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:55:29,293 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:55:29,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 00:55:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:55:29,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:55:29,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:55:30,205 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:55:30,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:55:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:55:30,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:55:30,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491675128] [2023-12-22 00:55:30,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491675128] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:55:30,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:55:30,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:55:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705777804] [2023-12-22 00:55:30,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:55:30,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:55:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:55:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:55:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:55:30,921 INFO L87 Difference]: Start difference. First operand 70054 states and 81240 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 00:56:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 00:56:30,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 00:56:30,418 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 3620 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5582 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3620 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 6553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 5582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:56:30,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3620 Valid, 290 Invalid, 6553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [971 Valid, 5582 Invalid, 0 Unknown, 0 Unchecked, 49.0s Time] [2023-12-22 00:56:30,419 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:56:30,424 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:56:30,424 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:56:30,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 00:56:30,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:56:30,621 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (70054states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (73912 states constructed, input type IntersectNwa). [2023-12-22 00:56:30,622 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:56:30,624 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-22 00:56:30,640 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:56:30,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:56:30 BoogieIcfgContainer [2023-12-22 00:56:30,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:56:30,642 INFO L158 Benchmark]: Toolchain (without parser) took 856481.56ms. Allocated memory was 278.9MB in the beginning and 3.5GB in the end (delta: 3.2GB). Free memory was 209.9MB in the beginning and 645.2MB in the end (delta: -435.3MB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-22 00:56:30,642 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 231.7MB. Free memory is still 181.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:56:30,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1425.54ms. Allocated memory is still 278.9MB. Free memory was 209.9MB in the beginning and 212.2MB in the end (delta: -2.3MB). Peak memory consumption was 104.2MB. Max. memory is 8.0GB. [2023-12-22 00:56:30,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.12ms. Allocated memory is still 278.9MB. Free memory was 212.2MB in the beginning and 176.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 00:56:30,642 INFO L158 Benchmark]: Boogie Preprocessor took 215.52ms. Allocated memory is still 278.9MB. Free memory was 176.5MB in the beginning and 137.2MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-12-22 00:56:30,642 INFO L158 Benchmark]: RCFGBuilder took 23900.96ms. Allocated memory was 278.9MB in the beginning and 661.7MB in the end (delta: 382.7MB). Free memory was 137.2MB in the beginning and 361.5MB in the end (delta: -224.4MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. [2023-12-22 00:56:30,642 INFO L158 Benchmark]: TraceAbstraction took 830816.61ms. Allocated memory was 661.7MB in the beginning and 3.5GB in the end (delta: 2.8GB). Free memory was 361.0MB in the beginning and 645.2MB in the end (delta: -284.2MB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2023-12-22 00:56:30,643 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 231.7MB. Free memory is still 181.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1425.54ms. Allocated memory is still 278.9MB. Free memory was 209.9MB in the beginning and 212.2MB in the end (delta: -2.3MB). Peak memory consumption was 104.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 117.12ms. Allocated memory is still 278.9MB. Free memory was 212.2MB in the beginning and 176.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 215.52ms. Allocated memory is still 278.9MB. Free memory was 176.5MB in the beginning and 137.2MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * RCFGBuilder took 23900.96ms. Allocated memory was 278.9MB in the beginning and 661.7MB in the end (delta: 382.7MB). Free memory was 137.2MB in the beginning and 361.5MB in the end (delta: -224.4MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. * TraceAbstraction took 830816.61ms. Allocated memory was 661.7MB in the beginning and 3.5GB in the end (delta: 2.8GB). Free memory was 361.0MB in the beginning and 645.2MB in the end (delta: -284.2MB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 653]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 653). Cancelled while NwaCegarLoop was constructing difference of abstraction (70054states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (73912 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 437]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 437). Cancelled while NwaCegarLoop was constructing difference of abstraction (70054states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (73912 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 834 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 830.7s, OverallIterations: 49, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 668.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209678 SdHoareTripleChecker+Valid, 340.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209678 mSDsluCounter, 736916 SdHoareTripleChecker+Invalid, 297.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 661648 mSDsCounter, 5599 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128524 IncrementalHoareTripleChecker+Invalid, 134123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5599 mSolverCounterUnsat, 75268 mSDtfsCounter, 128524 mSolverCounterSat, 2.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12503 GetRequests, 10003 SyntacticMatches, 0 SemanticMatches, 2500 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112060 ImplicationChecksByTransitivity, 257.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70054occurred in iteration=48, InterpolantAutomatonStates: 1965, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 65.6s AutomataMinimizationTime, 48 MinimizatonAttempts, 197107 StatesRemovedByMinimization, 45 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 81.1s InterpolantComputationTime, 6372 NumberOfCodeBlocks, 5721 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 10749 ConstructedInterpolants, 3088 QuantifiedInterpolants, 154421 SizeOfPredicates, 282 NumberOfNonLiveVariables, 13439 ConjunctsInSsa, 476 ConjunctsInUnsatCore, 77 InterpolantComputations, 21 PerfectInterpolantSequences, 4392/14310 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown