/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.3.ufo.UNBOUNDED.pals+Problem12_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 23:44:45,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 23:44:45,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 23:44:45,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 23:44:45,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 23:44:45,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 23:44:45,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 23:44:45,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 23:44:45,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 23:44:45,949 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 23:44:45,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 23:44:45,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 23:44:45,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 23:44:45,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 23:44:45,951 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 23:44:45,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 23:44:45,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 23:44:45,952 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 23:44:45,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 23:44:45,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 23:44:45,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 23:44:45,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 23:44:45,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 23:44:45,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 23:44:45,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 23:44:45,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 23:44:45,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 23:44:45,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 23:44:45,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 23:44:45,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 23:44:45,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 23:44:45,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 23:44:45,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 23:44:45,956 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 23:44:45,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 23:44:46,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 23:44:46,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 23:44:46,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 23:44:46,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 23:44:46,157 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 23:44:46,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c [2023-12-21 23:44:47,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 23:44:47,443 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 23:44:47,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c [2023-12-21 23:44:47,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de32581fe/d45ddc9c0cb14e6783c698483b98f3f3/FLAGff0548424 [2023-12-21 23:44:47,487 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de32581fe/d45ddc9c0cb14e6783c698483b98f3f3 [2023-12-21 23:44:47,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 23:44:47,490 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 23:44:47,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 23:44:47,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 23:44:47,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 23:44:47,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:47" (1/1) ... [2023-12-21 23:44:47,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430dc155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:47, skipping insertion in model container [2023-12-21 23:44:47,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:47" (1/1) ... [2023-12-21 23:44:47,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 23:44:47,835 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.3.ufo.UNBOUNDED.pals+Problem12_label00.c[6450,6463] [2023-12-21 23:44:47,864 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.3.ufo.UNBOUNDED.pals+Problem12_label00.c[8325,8338] [2023-12-21 23:44:48,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 23:44:48,393 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 23:44:48,414 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.3.ufo.UNBOUNDED.pals+Problem12_label00.c[6450,6463] [2023-12-21 23:44:48,416 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.3.ufo.UNBOUNDED.pals+Problem12_label00.c[8325,8338] [2023-12-21 23:44:48,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 23:44:48,729 INFO L206 MainTranslator]: Completed translation [2023-12-21 23:44:48,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48 WrapperNode [2023-12-21 23:44:48,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 23:44:48,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 23:44:48,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 23:44:48,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 23:44:48,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:48,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:48,867 INFO L138 Inliner]: procedures = 36, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 4962 [2023-12-21 23:44:48,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 23:44:48,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 23:44:48,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 23:44:48,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 23:44:48,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:48,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:48,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:48,954 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]. [2023-12-21 23:44:48,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:48,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:49,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:49,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:49,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:49,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:49,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 23:44:49,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 23:44:49,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 23:44:49,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 23:44:49,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (1/1) ... [2023-12-21 23:44:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 23:44:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 23:44:49,128 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) [2023-12-21 23:44:49,136 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 [2023-12-21 23:44:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 23:44:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 23:44:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 23:44:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 23:44:49,261 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 23:44:49,263 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 23:45:12,448 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 23:45:12,490 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 23:45:12,490 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 23:45:12,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:45:12 BoogieIcfgContainer [2023-12-21 23:45:12,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 23:45:12,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 23:45:12,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 23:45:12,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 23:45:12,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:44:47" (1/3) ... [2023-12-21 23:45:12,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62009bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:45:12, skipping insertion in model container [2023-12-21 23:45:12,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:48" (2/3) ... [2023-12-21 23:45:12,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62009bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:45:12, skipping insertion in model container [2023-12-21 23:45:12,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:45:12" (3/3) ... [2023-12-21 23:45:12,495 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals+Problem12_label00.c [2023-12-21 23:45:12,506 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 23:45:12,506 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 23:45:12,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 23:45:12,560 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;@29245800, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 23:45:12,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 23:45:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 809 states, 806 states have (on average 1.978908188585608) internal successors, (1595), 808 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-21 23:45:12,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:12,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:45:12,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:12,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:12,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1782453649, now seen corresponding path program 1 times [2023-12-21 23:45:12,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:12,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248194962] [2023-12-21 23:45:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:12,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:12,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:12,585 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) [2023-12-21 23:45:12,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:12,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 23:45:12,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:12,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:12,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:12,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248194962] [2023-12-21 23:45:12,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248194962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:12,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:12,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:45:12,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481359915] [2023-12-21 23:45:12,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:12,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 23:45:12,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:12,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 23:45:12,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 23:45:12,703 INFO L87 Difference]: Start difference. First operand has 809 states, 806 states have (on average 1.978908188585608) internal successors, (1595), 808 states have internal predecessors, (1595), 0 states have call successors, (0), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:12,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:12,777 INFO L93 Difference]: Finished difference Result 1597 states and 3151 transitions. [2023-12-21 23:45:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 23:45:12,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-12-21 23:45:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:12,792 INFO L225 Difference]: With dead ends: 1597 [2023-12-21 23:45:12,792 INFO L226 Difference]: Without dead ends: 805 [2023-12-21 23:45:12,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 23:45:12,798 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:12,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1523 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:12,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2023-12-21 23:45:12,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 805. [2023-12-21 23:45:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 803 states have (on average 1.8978829389788294) internal successors, (1524), 804 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1524 transitions. [2023-12-21 23:45:12,846 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1524 transitions. Word has length 15 [2023-12-21 23:45:12,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:12,846 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1524 transitions. [2023-12-21 23:45:12,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1524 transitions. [2023-12-21 23:45:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-21 23:45:12,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:12,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:45:12,850 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 [2023-12-21 23:45:13,050 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 [2023-12-21 23:45:13,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:13,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash -52894088, now seen corresponding path program 1 times [2023-12-21 23:45:13,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:13,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78131146] [2023-12-21 23:45:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:13,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:13,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:13,053 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) [2023-12-21 23:45:13,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:13,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:13,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:13,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:13,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:13,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78131146] [2023-12-21 23:45:13,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78131146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:13,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:13,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:45:13,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009226487] [2023-12-21 23:45:13,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:13,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:13,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:13,153 INFO L87 Difference]: Start difference. First operand 805 states and 1524 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:46,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:46,901 INFO L93 Difference]: Finished difference Result 2309 states and 4397 transitions. [2023-12-21 23:45:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:46,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2023-12-21 23:45:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:46,908 INFO L225 Difference]: With dead ends: 2309 [2023-12-21 23:45:46,908 INFO L226 Difference]: Without dead ends: 1556 [2023-12-21 23:45:46,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:46,910 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 888 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:46,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 510 Invalid, 2868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 33.5s Time] [2023-12-21 23:45:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2023-12-21 23:45:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2023-12-21 23:45:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1554 states have (on average 1.6415701415701416) internal successors, (2551), 1555 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2551 transitions. [2023-12-21 23:45:46,946 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2551 transitions. Word has length 15 [2023-12-21 23:45:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:46,946 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 2551 transitions. [2023-12-21 23:45:46,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2551 transitions. [2023-12-21 23:45:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 23:45:46,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:46,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:45:46,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:47,150 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 [2023-12-21 23:45:47,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:47,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1602115405, now seen corresponding path program 1 times [2023-12-21 23:45:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:47,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93614195] [2023-12-21 23:45:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:47,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:47,154 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) [2023-12-21 23:45:47,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:47,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 23:45:47,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:47,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:47,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:47,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93614195] [2023-12-21 23:45:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93614195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:47,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:47,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 23:45:47,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67102088] [2023-12-21 23:45:47,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:47,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 23:45:47,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:47,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 23:45:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:45:47,249 INFO L87 Difference]: Start difference. First operand 1556 states and 2551 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:47,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:47,303 INFO L93 Difference]: Finished difference Result 1590 states and 2603 transitions. [2023-12-21 23:45:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 23:45:47,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-12-21 23:45:47,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:47,308 INFO L225 Difference]: With dead ends: 1590 [2023-12-21 23:45:47,308 INFO L226 Difference]: Without dead ends: 1556 [2023-12-21 23:45:47,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:45:47,311 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 0 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:47,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4543 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2023-12-21 23:45:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2023-12-21 23:45:47,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1554 states have (on average 1.6312741312741312) internal successors, (2535), 1555 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2535 transitions. [2023-12-21 23:45:47,334 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2535 transitions. Word has length 17 [2023-12-21 23:45:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 2535 transitions. [2023-12-21 23:45:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2535 transitions. [2023-12-21 23:45:47,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-21 23:45:47,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:47,338 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] [2023-12-21 23:45:47,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:47,541 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 [2023-12-21 23:45:47,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:47,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1530211809, now seen corresponding path program 1 times [2023-12-21 23:45:47,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:47,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966810775] [2023-12-21 23:45:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:47,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:47,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:47,544 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) [2023-12-21 23:45:47,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:47,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:45:47,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:47,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:47,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:47,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966810775] [2023-12-21 23:45:47,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966810775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:47,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:47,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 23:45:47,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924336660] [2023-12-21 23:45:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:47,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 23:45:47,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 23:45:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:45:47,789 INFO L87 Difference]: Start difference. First operand 1556 states and 2535 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:47,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:47,900 INFO L93 Difference]: Finished difference Result 1680 states and 2731 transitions. [2023-12-21 23:45:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:45:47,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2023-12-21 23:45:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:47,906 INFO L225 Difference]: With dead ends: 1680 [2023-12-21 23:45:47,906 INFO L226 Difference]: Without dead ends: 1649 [2023-12-21 23:45:47,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:45:47,909 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 3046 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:47,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 1638 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 23:45:47,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2023-12-21 23:45:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1614. [2023-12-21 23:45:47,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1612 states have (on average 1.630272952853598) internal successors, (2628), 1613 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2628 transitions. [2023-12-21 23:45:47,939 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2628 transitions. Word has length 32 [2023-12-21 23:45:47,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:47,939 INFO L495 AbstractCegarLoop]: Abstraction has 1614 states and 2628 transitions. [2023-12-21 23:45:47,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:47,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2628 transitions. [2023-12-21 23:45:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-21 23:45:47,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:47,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:45:47,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:48,145 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 [2023-12-21 23:45:48,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:48,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1777423345, now seen corresponding path program 1 times [2023-12-21 23:45:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:48,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048853718] [2023-12-21 23:45:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:48,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:48,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:48,147 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) [2023-12-21 23:45:48,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:48,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:48,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:48,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:48,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:48,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048853718] [2023-12-21 23:45:48,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048853718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:48,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:48,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:48,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209352746] [2023-12-21 23:45:48,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:48,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:48,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:48,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:48,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:48,265 INFO L87 Difference]: Start difference. First operand 1614 states and 2628 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:48,301 INFO L93 Difference]: Finished difference Result 1776 states and 2884 transitions. [2023-12-21 23:45:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-12-21 23:45:48,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:48,313 INFO L225 Difference]: With dead ends: 1776 [2023-12-21 23:45:48,313 INFO L226 Difference]: Without dead ends: 1687 [2023-12-21 23:45:48,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:48,314 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1466 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:48,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1542 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:48,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-12-21 23:45:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1682. [2023-12-21 23:45:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1680 states have (on average 1.625) internal successors, (2730), 1681 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2730 transitions. [2023-12-21 23:45:48,342 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2730 transitions. Word has length 34 [2023-12-21 23:45:48,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:48,343 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2730 transitions. [2023-12-21 23:45:48,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2730 transitions. [2023-12-21 23:45:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-21 23:45:48,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:48,348 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] [2023-12-21 23:45:48,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:48,550 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 [2023-12-21 23:45:48,551 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:48,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash 672589841, now seen corresponding path program 1 times [2023-12-21 23:45:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:48,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410332218] [2023-12-21 23:45:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:48,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:48,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:48,554 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) [2023-12-21 23:45:48,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:48,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 23:45:48,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:48,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:48,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:48,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410332218] [2023-12-21 23:45:48,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410332218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:48,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:48,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 23:45:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729153905] [2023-12-21 23:45:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:48,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 23:45:48,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 23:45:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:45:48,628 INFO L87 Difference]: Start difference. First operand 1682 states and 2730 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:48,681 INFO L93 Difference]: Finished difference Result 1696 states and 2747 transitions. [2023-12-21 23:45:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 23:45:48,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2023-12-21 23:45:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:48,686 INFO L225 Difference]: With dead ends: 1696 [2023-12-21 23:45:48,687 INFO L226 Difference]: Without dead ends: 1694 [2023-12-21 23:45:48,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:45:48,689 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 1 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4504 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 [2023-12-21 23:45:48,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4504 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-12-21 23:45:48,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1690. [2023-12-21 23:45:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1688 states have (on average 1.6214454976303319) internal successors, (2737), 1689 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2737 transitions. [2023-12-21 23:45:48,771 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2737 transitions. Word has length 35 [2023-12-21 23:45:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:48,772 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2737 transitions. [2023-12-21 23:45:48,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:48,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2737 transitions. [2023-12-21 23:45:48,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 23:45:48,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:48,773 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] [2023-12-21 23:45:48,778 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 [2023-12-21 23:45:48,976 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 [2023-12-21 23:45:48,977 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:48,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:48,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1662874585, now seen corresponding path program 1 times [2023-12-21 23:45:48,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:48,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345662321] [2023-12-21 23:45:48,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:48,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:48,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:48,979 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) [2023-12-21 23:45:48,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:49,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:49,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:49,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:49,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:49,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345662321] [2023-12-21 23:45:49,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345662321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:49,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:49,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:49,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491949462] [2023-12-21 23:45:49,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:49,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:49,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:49,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:49,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:49,065 INFO L87 Difference]: Start difference. First operand 1690 states and 2737 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:49,097 INFO L93 Difference]: Finished difference Result 1996 states and 3197 transitions. [2023-12-21 23:45:49,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:49,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2023-12-21 23:45:49,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:49,102 INFO L225 Difference]: With dead ends: 1996 [2023-12-21 23:45:49,103 INFO L226 Difference]: Without dead ends: 1831 [2023-12-21 23:45:49,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:49,104 INFO L413 NwaCegarLoop]: 1520 mSDtfsCounter, 1473 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1577 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 [2023-12-21 23:45:49,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1577 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2023-12-21 23:45:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1829. [2023-12-21 23:45:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1827 states have (on average 1.608648056923919) internal successors, (2939), 1828 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2939 transitions. [2023-12-21 23:45:49,133 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2939 transitions. Word has length 36 [2023-12-21 23:45:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:49,134 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2939 transitions. [2023-12-21 23:45:49,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2939 transitions. [2023-12-21 23:45:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 23:45:49,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:49,134 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] [2023-12-21 23:45:49,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:49,337 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 [2023-12-21 23:45:49,337 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:49,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1743359271, now seen corresponding path program 1 times [2023-12-21 23:45:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:49,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583516498] [2023-12-21 23:45:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:49,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:49,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:49,340 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) [2023-12-21 23:45:49,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:49,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:49,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:49,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:49,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:49,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583516498] [2023-12-21 23:45:49,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583516498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:49,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:49,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308831633] [2023-12-21 23:45:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:49,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:49,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:49,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:49,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:49,414 INFO L87 Difference]: Start difference. First operand 1829 states and 2939 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:49,443 INFO L93 Difference]: Finished difference Result 2389 states and 3761 transitions. [2023-12-21 23:45:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:49,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2023-12-21 23:45:49,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:49,450 INFO L225 Difference]: With dead ends: 2389 [2023-12-21 23:45:49,450 INFO L226 Difference]: Without dead ends: 2085 [2023-12-21 23:45:49,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:49,452 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 1475 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1583 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 [2023-12-21 23:45:49,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 1583 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:49,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2023-12-21 23:45:49,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2083. [2023-12-21 23:45:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2081 states have (on average 1.5833733781835655) internal successors, (3295), 2082 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 3295 transitions. [2023-12-21 23:45:49,485 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 3295 transitions. Word has length 36 [2023-12-21 23:45:49,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:49,485 INFO L495 AbstractCegarLoop]: Abstraction has 2083 states and 3295 transitions. [2023-12-21 23:45:49,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 3295 transitions. [2023-12-21 23:45:49,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-21 23:45:49,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:49,486 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] [2023-12-21 23:45:49,492 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 [2023-12-21 23:45:49,689 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 [2023-12-21 23:45:49,690 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:49,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1790191284, now seen corresponding path program 1 times [2023-12-21 23:45:49,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:49,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882851796] [2023-12-21 23:45:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:49,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:49,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:49,709 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) [2023-12-21 23:45:49,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:49,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:49,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:49,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:49,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:49,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:49,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882851796] [2023-12-21 23:45:49,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882851796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:49,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:49,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:49,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214266616] [2023-12-21 23:45:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:49,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:49,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:49,812 INFO L87 Difference]: Start difference. First operand 2083 states and 3295 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:49,847 INFO L93 Difference]: Finished difference Result 2666 states and 4165 transitions. [2023-12-21 23:45:49,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:49,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2023-12-21 23:45:49,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:49,854 INFO L225 Difference]: With dead ends: 2666 [2023-12-21 23:45:49,854 INFO L226 Difference]: Without dead ends: 2339 [2023-12-21 23:45:49,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:49,855 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 1474 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1584 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 [2023-12-21 23:45:49,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1584 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:49,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2023-12-21 23:45:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2337. [2023-12-21 23:45:49,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2335 states have (on average 1.566167023554604) internal successors, (3657), 2336 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3657 transitions. [2023-12-21 23:45:49,894 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3657 transitions. Word has length 38 [2023-12-21 23:45:49,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:49,895 INFO L495 AbstractCegarLoop]: Abstraction has 2337 states and 3657 transitions. [2023-12-21 23:45:49,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:49,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3657 transitions. [2023-12-21 23:45:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-21 23:45:49,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:49,895 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] [2023-12-21 23:45:49,898 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 [2023-12-21 23:45:50,098 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 [2023-12-21 23:45:50,099 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:50,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1496014032, now seen corresponding path program 1 times [2023-12-21 23:45:50,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:50,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943474303] [2023-12-21 23:45:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:50,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:50,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:50,100 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) [2023-12-21 23:45:50,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:50,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:50,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:50,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:50,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943474303] [2023-12-21 23:45:50,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943474303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:50,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:50,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:50,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197130699] [2023-12-21 23:45:50,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:50,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:50,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:50,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:50,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:50,183 INFO L87 Difference]: Start difference. First operand 2337 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:50,218 INFO L93 Difference]: Finished difference Result 2932 states and 4527 transitions. [2023-12-21 23:45:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:50,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-21 23:45:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:50,224 INFO L225 Difference]: With dead ends: 2932 [2023-12-21 23:45:50,224 INFO L226 Difference]: Without dead ends: 2122 [2023-12-21 23:45:50,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:50,225 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 34 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3020 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 [2023-12-21 23:45:50,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3020 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-21 23:45:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2120. [2023-12-21 23:45:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2118 states have (on average 1.578847969782814) internal successors, (3344), 2119 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3344 transitions. [2023-12-21 23:45:50,259 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3344 transitions. Word has length 50 [2023-12-21 23:45:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:50,259 INFO L495 AbstractCegarLoop]: Abstraction has 2120 states and 3344 transitions. [2023-12-21 23:45:50,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3344 transitions. [2023-12-21 23:45:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 23:45:50,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:50,260 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] [2023-12-21 23:45:50,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:50,462 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 [2023-12-21 23:45:50,463 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:50,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:50,463 INFO L85 PathProgramCache]: Analyzing trace with hash -350989803, now seen corresponding path program 1 times [2023-12-21 23:45:50,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:50,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415913446] [2023-12-21 23:45:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:50,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:50,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:50,464 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) [2023-12-21 23:45:50,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:50,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 23:45:50,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:51,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:45:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:51,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:51,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415913446] [2023-12-21 23:45:51,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415913446] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:45:51,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:45:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-21 23:45:51,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682582609] [2023-12-21 23:45:51,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:45:51,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 23:45:51,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:51,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 23:45:51,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 23:45:51,410 INFO L87 Difference]: Start difference. First operand 2120 states and 3344 transitions. Second operand has 16 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:52,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:52,799 INFO L93 Difference]: Finished difference Result 3648 states and 5515 transitions. [2023-12-21 23:45:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 23:45:52,800 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-21 23:45:52,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:52,807 INFO L225 Difference]: With dead ends: 3648 [2023-12-21 23:45:52,807 INFO L226 Difference]: Without dead ends: 3070 [2023-12-21 23:45:52,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-21 23:45:52,809 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 3293 mSDsluCounter, 9068 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3293 SdHoareTripleChecker+Valid, 10580 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:52,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3293 Valid, 10580 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 23:45:52,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2023-12-21 23:45:52,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 2696. [2023-12-21 23:45:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2696 states, 2694 states have (on average 1.548626577579807) internal successors, (4172), 2695 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:52,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2696 states to 2696 states and 4172 transitions. [2023-12-21 23:45:52,860 INFO L78 Accepts]: Start accepts. Automaton has 2696 states and 4172 transitions. Word has length 52 [2023-12-21 23:45:52,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:52,861 INFO L495 AbstractCegarLoop]: Abstraction has 2696 states and 4172 transitions. [2023-12-21 23:45:52,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2696 states and 4172 transitions. [2023-12-21 23:45:52,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 23:45:52,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:52,862 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] [2023-12-21 23:45:52,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:53,067 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 [2023-12-21 23:45:53,067 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:53,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:53,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1007998251, now seen corresponding path program 1 times [2023-12-21 23:45:53,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:53,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661029826] [2023-12-21 23:45:53,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:53,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:53,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:53,069 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) [2023-12-21 23:45:53,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:53,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:53,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:53,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:53,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661029826] [2023-12-21 23:45:53,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661029826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:53,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:53,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:53,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580786110] [2023-12-21 23:45:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:53,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:53,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:53,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:53,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:53,162 INFO L87 Difference]: Start difference. First operand 2696 states and 4172 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:53,199 INFO L93 Difference]: Finished difference Result 3276 states and 5008 transitions. [2023-12-21 23:45:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:53,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-21 23:45:53,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:53,205 INFO L225 Difference]: With dead ends: 3276 [2023-12-21 23:45:53,206 INFO L226 Difference]: Without dead ends: 2122 [2023-12-21 23:45:53,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:53,208 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 28 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3005 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 [2023-12-21 23:45:53,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3005 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:53,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-21 23:45:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2120. [2023-12-21 23:45:53,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2118 states have (on average 1.5703493862134088) internal successors, (3326), 2119 states have internal predecessors, (3326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3326 transitions. [2023-12-21 23:45:53,245 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3326 transitions. Word has length 54 [2023-12-21 23:45:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:53,245 INFO L495 AbstractCegarLoop]: Abstraction has 2120 states and 3326 transitions. [2023-12-21 23:45:53,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3326 transitions. [2023-12-21 23:45:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 23:45:53,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:53,246 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 23:45:53,251 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 [2023-12-21 23:45:53,449 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 [2023-12-21 23:45:53,449 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:53,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1513463516, now seen corresponding path program 1 times [2023-12-21 23:45:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683721890] [2023-12-21 23:45:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:53,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:53,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:53,451 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) [2023-12-21 23:45:53,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:53,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 23:45:53,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:54,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:45:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:54,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:54,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683721890] [2023-12-21 23:45:54,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683721890] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:45:54,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:45:54,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-21 23:45:54,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127372910] [2023-12-21 23:45:54,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:45:54,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 23:45:54,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:54,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 23:45:54,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 23:45:54,413 INFO L87 Difference]: Start difference. First operand 2120 states and 3326 transitions. Second operand has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 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) [2023-12-21 23:45:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:55,526 INFO L93 Difference]: Finished difference Result 3700 states and 5538 transitions. [2023-12-21 23:45:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 23:45:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 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 55 [2023-12-21 23:45:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:55,534 INFO L225 Difference]: With dead ends: 3700 [2023-12-21 23:45:55,534 INFO L226 Difference]: Without dead ends: 3122 [2023-12-21 23:45:55,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-21 23:45:55,537 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1836 mSDsluCounter, 12103 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 13634 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:55,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 13634 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 23:45:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2023-12-21 23:45:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2768. [2023-12-21 23:45:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2766 states have (on average 1.5213304410701374) internal successors, (4208), 2767 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 4208 transitions. [2023-12-21 23:45:55,604 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 4208 transitions. Word has length 55 [2023-12-21 23:45:55,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:55,604 INFO L495 AbstractCegarLoop]: Abstraction has 2768 states and 4208 transitions. [2023-12-21 23:45:55,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 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) [2023-12-21 23:45:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 4208 transitions. [2023-12-21 23:45:55,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 23:45:55,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:55,606 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] [2023-12-21 23:45:55,611 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 [2023-12-21 23:45:55,808 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 [2023-12-21 23:45:55,809 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:55,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:55,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1273776240, now seen corresponding path program 1 times [2023-12-21 23:45:55,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:55,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448749244] [2023-12-21 23:45:55,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:55,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:55,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:55,811 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) [2023-12-21 23:45:55,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-21 23:45:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:55,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:55,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:55,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:55,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:55,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448749244] [2023-12-21 23:45:55,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448749244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:55,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:55,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219112859] [2023-12-21 23:45:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:55,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:55,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:55,896 INFO L87 Difference]: Start difference. First operand 2768 states and 4208 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:55,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:55,959 INFO L93 Difference]: Finished difference Result 3330 states and 4982 transitions. [2023-12-21 23:45:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:45:55,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-21 23:45:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:55,964 INFO L225 Difference]: With dead ends: 3330 [2023-12-21 23:45:55,964 INFO L226 Difference]: Without dead ends: 2104 [2023-12-21 23:45:55,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:55,965 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 24 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2990 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 [2023-12-21 23:45:55,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2990 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:55,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2023-12-21 23:45:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2102. [2023-12-21 23:45:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2102 states, 2100 states have (on average 1.5547619047619048) internal successors, (3265), 2101 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 3265 transitions. [2023-12-21 23:45:55,997 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 3265 transitions. Word has length 57 [2023-12-21 23:45:55,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:55,997 INFO L495 AbstractCegarLoop]: Abstraction has 2102 states and 3265 transitions. [2023-12-21 23:45:55,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:55,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 3265 transitions. [2023-12-21 23:45:55,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-21 23:45:55,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:55,998 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:45:56,001 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 [2023-12-21 23:45:56,202 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 [2023-12-21 23:45:56,202 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:56,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:56,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1390802409, now seen corresponding path program 1 times [2023-12-21 23:45:56,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:56,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794854043] [2023-12-21 23:45:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:56,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:56,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:56,204 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) [2023-12-21 23:45:56,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:56,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 23:45:56,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:56,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:45:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:57,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:57,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794854043] [2023-12-21 23:45:57,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794854043] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:45:57,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:45:57,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-21 23:45:57,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442809436] [2023-12-21 23:45:57,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:45:57,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 23:45:57,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 23:45:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 23:45:57,070 INFO L87 Difference]: Start difference. First operand 2102 states and 3265 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:58,095 INFO L93 Difference]: Finished difference Result 3176 states and 4698 transitions. [2023-12-21 23:45:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 23:45:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 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 58 [2023-12-21 23:45:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:58,099 INFO L225 Difference]: With dead ends: 3176 [2023-12-21 23:45:58,099 INFO L226 Difference]: Without dead ends: 2616 [2023-12-21 23:45:58,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-21 23:45:58,100 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 4721 mSDsluCounter, 13459 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 14972 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:58,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4721 Valid, 14972 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 23:45:58,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2023-12-21 23:45:58,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2498. [2023-12-21 23:45:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2496 states have (on average 1.5124198717948718) internal successors, (3775), 2497 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3775 transitions. [2023-12-21 23:45:58,142 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3775 transitions. Word has length 58 [2023-12-21 23:45:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:58,142 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 3775 transitions. [2023-12-21 23:45:58,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3775 transitions. [2023-12-21 23:45:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-21 23:45:58,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:58,143 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 23:45:58,148 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 [2023-12-21 23:45:58,346 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 [2023-12-21 23:45:58,346 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:58,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash -82740927, now seen corresponding path program 1 times [2023-12-21 23:45:58,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:58,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974798983] [2023-12-21 23:45:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:58,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:58,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:58,348 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) [2023-12-21 23:45:58,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:58,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 23:45:58,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 23:45:58,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:45:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 23:45:58,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:58,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974798983] [2023-12-21 23:45:58,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974798983] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:45:58,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:45:58,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 23:45:58,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124986430] [2023-12-21 23:45:58,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:45:58,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 23:45:58,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:58,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 23:45:58,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 23:45:58,557 INFO L87 Difference]: Start difference. First operand 2498 states and 3775 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:45:58,678 INFO L93 Difference]: Finished difference Result 4402 states and 6241 transitions. [2023-12-21 23:45:58,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:45:58,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-21 23:45:58,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:45:58,683 INFO L225 Difference]: With dead ends: 4402 [2023-12-21 23:45:58,683 INFO L226 Difference]: Without dead ends: 3446 [2023-12-21 23:45:58,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 23:45:58,684 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 4360 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:45:58,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4360 Valid, 3118 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 23:45:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2023-12-21 23:45:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3426. [2023-12-21 23:45:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 1.4100467289719627) internal successors, (4828), 3425 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4828 transitions. [2023-12-21 23:45:58,752 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4828 transitions. Word has length 60 [2023-12-21 23:45:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:45:58,753 INFO L495 AbstractCegarLoop]: Abstraction has 3426 states and 4828 transitions. [2023-12-21 23:45:58,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:45:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4828 transitions. [2023-12-21 23:45:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 23:45:58,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:45:58,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:45:58,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-21 23:45:58,959 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 [2023-12-21 23:45:58,960 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:45:58,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:45:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash -128125831, now seen corresponding path program 1 times [2023-12-21 23:45:58,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:45:58,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528871915] [2023-12-21 23:45:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:45:58,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:45:58,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:45:58,962 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) [2023-12-21 23:45:58,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:45:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:45:59,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:45:59,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:45:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:45:59,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:45:59,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:45:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528871915] [2023-12-21 23:45:59,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528871915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:45:59,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:45:59,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:45:59,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996656855] [2023-12-21 23:45:59,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:45:59,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:45:59,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:45:59,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:45:59,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:45:59,037 INFO L87 Difference]: Start difference. First operand 3426 states and 4828 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:46:33,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:46:33,837 INFO L93 Difference]: Finished difference Result 6432 states and 9755 transitions. [2023-12-21 23:46:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:46:33,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-21 23:46:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:46:33,843 INFO L225 Difference]: With dead ends: 6432 [2023-12-21 23:46:33,843 INFO L226 Difference]: Without dead ends: 4928 [2023-12-21 23:46:33,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:46:33,845 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 753 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:46:33,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1290 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 34.6s Time] [2023-12-21 23:46:33,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4928 states. [2023-12-21 23:46:33,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4928 to 4928. [2023-12-21 23:46:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4928 states, 4926 states have (on average 1.417783191230207) internal successors, (6984), 4927 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:46:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4928 states to 4928 states and 6984 transitions. [2023-12-21 23:46:33,915 INFO L78 Accepts]: Start accepts. Automaton has 4928 states and 6984 transitions. Word has length 86 [2023-12-21 23:46:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:46:33,916 INFO L495 AbstractCegarLoop]: Abstraction has 4928 states and 6984 transitions. [2023-12-21 23:46:33,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:46:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4928 states and 6984 transitions. [2023-12-21 23:46:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 23:46:33,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:46:33,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:46:33,920 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 [2023-12-21 23:46:34,120 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 [2023-12-21 23:46:34,120 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:46:34,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:46:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2072546124, now seen corresponding path program 1 times [2023-12-21 23:46:34,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:46:34,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101305326] [2023-12-21 23:46:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:46:34,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:46:34,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:46:34,122 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) [2023-12-21 23:46:34,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-21 23:46:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:46:34,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:46:34,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:46:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:46:34,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:46:34,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:46:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101305326] [2023-12-21 23:46:34,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101305326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:46:34,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:46:34,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:46:34,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313938638] [2023-12-21 23:46:34,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:46:34,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:46:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:46:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:46:34,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:46:34,316 INFO L87 Difference]: Start difference. First operand 4928 states and 6984 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:47:11,188 INFO L93 Difference]: Finished difference Result 9436 states and 14067 transitions. [2023-12-21 23:47:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:47:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-21 23:47:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:47:11,196 INFO L225 Difference]: With dead ends: 9436 [2023-12-21 23:47:11,196 INFO L226 Difference]: Without dead ends: 6430 [2023-12-21 23:47:11,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:47:11,199 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 759 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 3117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2023-12-21 23:47:11,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 576 Invalid, 3117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 36.7s Time] [2023-12-21 23:47:11,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2023-12-21 23:47:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 6430. [2023-12-21 23:47:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6430 states, 6428 states have (on average 1.4248599875544492) internal successors, (9159), 6429 states have internal predecessors, (9159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:11,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6430 states to 6430 states and 9159 transitions. [2023-12-21 23:47:11,291 INFO L78 Accepts]: Start accepts. Automaton has 6430 states and 9159 transitions. Word has length 89 [2023-12-21 23:47:11,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:47:11,292 INFO L495 AbstractCegarLoop]: Abstraction has 6430 states and 9159 transitions. [2023-12-21 23:47:11,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:11,292 INFO L276 IsEmpty]: Start isEmpty. Operand 6430 states and 9159 transitions. [2023-12-21 23:47:11,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 23:47:11,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:47:11,293 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:47:11,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-21 23:47:11,503 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 [2023-12-21 23:47:11,503 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:47:11,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:47:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1015921533, now seen corresponding path program 1 times [2023-12-21 23:47:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:47:11,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392986750] [2023-12-21 23:47:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:47:11,504 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 [2023-12-21 23:47:11,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:47:11,505 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) [2023-12-21 23:47:11,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:47:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:47:11,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:47:11,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:47:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:47:11,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:47:11,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:47:11,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392986750] [2023-12-21 23:47:11,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392986750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:47:11,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:47:11,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:47:11,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92394634] [2023-12-21 23:47:11,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:47:11,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:47:11,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:47:11,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:47:11,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:47:11,667 INFO L87 Difference]: Start difference. First operand 6430 states and 9159 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:47:47,313 INFO L93 Difference]: Finished difference Result 15444 states and 22748 transitions. [2023-12-21 23:47:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:47:47,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2023-12-21 23:47:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:47:47,325 INFO L225 Difference]: With dead ends: 15444 [2023-12-21 23:47:47,325 INFO L226 Difference]: Without dead ends: 10936 [2023-12-21 23:47:47,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:47:47,328 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 760 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:47:47,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 710 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 35.4s Time] [2023-12-21 23:47:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10936 states. [2023-12-21 23:47:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10936 to 10936. [2023-12-21 23:47:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10936 states, 10934 states have (on average 1.3013535760014634) internal successors, (14229), 10935 states have internal predecessors, (14229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10936 states to 10936 states and 14229 transitions. [2023-12-21 23:47:47,456 INFO L78 Accepts]: Start accepts. Automaton has 10936 states and 14229 transitions. Word has length 90 [2023-12-21 23:47:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:47:47,456 INFO L495 AbstractCegarLoop]: Abstraction has 10936 states and 14229 transitions. [2023-12-21 23:47:47,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 10936 states and 14229 transitions. [2023-12-21 23:47:47,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 23:47:47,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:47:47,457 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 23:47:47,461 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 (20)] Forceful destruction successful, exit code 0 [2023-12-21 23:47:47,661 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 [2023-12-21 23:47:47,662 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:47:47,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:47:47,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1697976851, now seen corresponding path program 1 times [2023-12-21 23:47:47,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:47:47,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653044624] [2023-12-21 23:47:47,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:47:47,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:47:47,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:47:47,664 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) [2023-12-21 23:47:47,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-21 23:47:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:47:47,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 23:47:47,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:47:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:47:48,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:47:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:47:49,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:47:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653044624] [2023-12-21 23:47:49,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653044624] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:47:49,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:47:49,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-21 23:47:49,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742464797] [2023-12-21 23:47:49,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:47:49,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 23:47:49,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:47:49,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 23:47:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-21 23:47:49,178 INFO L87 Difference]: Start difference. First operand 10936 states and 14229 transitions. Second operand has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:50,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:47:50,693 INFO L93 Difference]: Finished difference Result 12182 states and 15799 transitions. [2023-12-21 23:47:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 23:47:50,693 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-21 23:47:50,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:47:50,703 INFO L225 Difference]: With dead ends: 12182 [2023-12-21 23:47:50,703 INFO L226 Difference]: Without dead ends: 10970 [2023-12-21 23:47:50,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 23:47:50,706 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 17831 mSDsluCounter, 7705 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17831 SdHoareTripleChecker+Valid, 9203 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:47:50,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17831 Valid, 9203 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 23:47:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2023-12-21 23:47:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 10936. [2023-12-21 23:47:50,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10936 states, 10934 states have (on average 1.2984269251874885) internal successors, (14197), 10935 states have internal predecessors, (14197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10936 states to 10936 states and 14197 transitions. [2023-12-21 23:47:50,844 INFO L78 Accepts]: Start accepts. Automaton has 10936 states and 14197 transitions. Word has length 95 [2023-12-21 23:47:50,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:47:50,844 INFO L495 AbstractCegarLoop]: Abstraction has 10936 states and 14197 transitions. [2023-12-21 23:47:50,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:50,845 INFO L276 IsEmpty]: Start isEmpty. Operand 10936 states and 14197 transitions. [2023-12-21 23:47:50,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 23:47:50,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:47:50,846 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:47:50,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-21 23:47:51,049 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 [2023-12-21 23:47:51,049 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:47:51,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:47:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1417022116, now seen corresponding path program 1 times [2023-12-21 23:47:51,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:47:51,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375812704] [2023-12-21 23:47:51,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:47:51,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:47:51,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:47:51,051 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) [2023-12-21 23:47:51,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:47:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:47:51,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 23:47:51,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:47:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 22 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:47:52,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:47:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 22 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:47:52,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:47:52,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375812704] [2023-12-21 23:47:52,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375812704] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:47:52,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:47:52,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-21 23:47:52,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935238142] [2023-12-21 23:47:52,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:47:52,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 23:47:52,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:47:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 23:47:52,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-21 23:47:52,442 INFO L87 Difference]: Start difference. First operand 10936 states and 14197 transitions. Second operand has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 25 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:47:54,021 INFO L93 Difference]: Finished difference Result 11850 states and 15333 transitions. [2023-12-21 23:47:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 23:47:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 25 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-21 23:47:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:47:54,029 INFO L225 Difference]: With dead ends: 11850 [2023-12-21 23:47:54,030 INFO L226 Difference]: Without dead ends: 11072 [2023-12-21 23:47:54,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-21 23:47:54,032 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 17943 mSDsluCounter, 9179 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17943 SdHoareTripleChecker+Valid, 10677 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:47:54,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17943 Valid, 10677 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 23:47:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11072 states. [2023-12-21 23:47:54,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11072 to 10936. [2023-12-21 23:47:54,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10936 states, 10934 states have (on average 1.2969635997805011) internal successors, (14181), 10935 states have internal predecessors, (14181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10936 states to 10936 states and 14181 transitions. [2023-12-21 23:47:54,190 INFO L78 Accepts]: Start accepts. Automaton has 10936 states and 14181 transitions. Word has length 96 [2023-12-21 23:47:54,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:47:54,191 INFO L495 AbstractCegarLoop]: Abstraction has 10936 states and 14181 transitions. [2023-12-21 23:47:54,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 25 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:47:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 10936 states and 14181 transitions. [2023-12-21 23:47:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 23:47:54,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:47:54,195 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:47:54,200 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 [2023-12-21 23:47:54,400 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 [2023-12-21 23:47:54,401 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:47:54,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:47:54,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1681675630, now seen corresponding path program 1 times [2023-12-21 23:47:54,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:47:54,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348013291] [2023-12-21 23:47:54,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:47:54,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:47:54,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:47:54,402 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) [2023-12-21 23:47:54,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:47:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:47:54,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:47:54,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:47:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:47:54,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:47:54,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:47:54,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348013291] [2023-12-21 23:47:54,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348013291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:47:54,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:47:54,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:47:54,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731851940] [2023-12-21 23:47:54,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:47:54,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:47:54,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:47:54,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:47:54,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:47:54,883 INFO L87 Difference]: Start difference. First operand 10936 states and 14181 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:20,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:20,552 INFO L93 Difference]: Finished difference Result 20701 states and 26857 transitions. [2023-12-21 23:48:20,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:48:20,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-21 23:48:20,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:20,563 INFO L225 Difference]: With dead ends: 20701 [2023-12-21 23:48:20,563 INFO L226 Difference]: Without dead ends: 11687 [2023-12-21 23:48:20,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:48:20,570 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 738 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:20,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 756 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 25.4s Time] [2023-12-21 23:48:20,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11687 states. [2023-12-21 23:48:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11687 to 11687. [2023-12-21 23:48:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11687 states, 11685 states have (on average 1.2789045785194695) internal successors, (14944), 11686 states have internal predecessors, (14944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:20,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11687 states to 11687 states and 14944 transitions. [2023-12-21 23:48:20,807 INFO L78 Accepts]: Start accepts. Automaton has 11687 states and 14944 transitions. Word has length 96 [2023-12-21 23:48:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:20,807 INFO L495 AbstractCegarLoop]: Abstraction has 11687 states and 14944 transitions. [2023-12-21 23:48:20,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 11687 states and 14944 transitions. [2023-12-21 23:48:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 23:48:20,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:20,808 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 23:48:20,814 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 (23)] Ended with exit code 0 [2023-12-21 23:48:21,012 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 [2023-12-21 23:48:21,012 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:21,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:21,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1122562365, now seen corresponding path program 1 times [2023-12-21 23:48:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:21,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301810366] [2023-12-21 23:48:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:48:21,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:21,014 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) [2023-12-21 23:48:21,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-21 23:48:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:48:21,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 23:48:21,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:22,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:48:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:22,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:22,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301810366] [2023-12-21 23:48:22,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301810366] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:48:22,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:48:22,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-21 23:48:22,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98646388] [2023-12-21 23:48:22,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:48:22,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 23:48:22,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:22,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 23:48:22,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-21 23:48:22,972 INFO L87 Difference]: Start difference. First operand 11687 states and 14944 transitions. Second operand has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:28,082 INFO L93 Difference]: Finished difference Result 12959 states and 16484 transitions. [2023-12-21 23:48:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-21 23:48:28,083 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-21 23:48:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:28,091 INFO L225 Difference]: With dead ends: 12959 [2023-12-21 23:48:28,091 INFO L226 Difference]: Without dead ends: 12147 [2023-12-21 23:48:28,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-21 23:48:28,094 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 6445 mSDsluCounter, 26201 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6445 SdHoareTripleChecker+Valid, 27779 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:28,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6445 Valid, 27779 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 23:48:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12147 states. [2023-12-21 23:48:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12147 to 11027. [2023-12-21 23:48:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11027 states, 11025 states have (on average 1.2833560090702947) internal successors, (14149), 11026 states have internal predecessors, (14149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11027 states to 11027 states and 14149 transitions. [2023-12-21 23:48:28,231 INFO L78 Accepts]: Start accepts. Automaton has 11027 states and 14149 transitions. Word has length 97 [2023-12-21 23:48:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:28,231 INFO L495 AbstractCegarLoop]: Abstraction has 11027 states and 14149 transitions. [2023-12-21 23:48:28,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 11027 states and 14149 transitions. [2023-12-21 23:48:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 23:48:28,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:28,232 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 23:48:28,235 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 [2023-12-21 23:48:28,435 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 [2023-12-21 23:48:28,435 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:28,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:28,436 INFO L85 PathProgramCache]: Analyzing trace with hash -767856793, now seen corresponding path program 1 times [2023-12-21 23:48:28,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:28,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147100930] [2023-12-21 23:48:28,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:48:28,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:28,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:28,437 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) [2023-12-21 23:48:28,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:48:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:48:28,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 23:48:28,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:29,765 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 22 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:29,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:48:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 22 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:30,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147100930] [2023-12-21 23:48:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147100930] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:48:30,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:48:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-21 23:48:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000518875] [2023-12-21 23:48:30,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:48:30,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 23:48:30,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 23:48:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-21 23:48:30,306 INFO L87 Difference]: Start difference. First operand 11027 states and 14149 transitions. Second operand has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:35,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:35,405 INFO L93 Difference]: Finished difference Result 11984 states and 15306 transitions. [2023-12-21 23:48:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-21 23:48:35,406 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-21 23:48:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:35,417 INFO L225 Difference]: With dead ends: 11984 [2023-12-21 23:48:35,417 INFO L226 Difference]: Without dead ends: 11662 [2023-12-21 23:48:35,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-21 23:48:35,421 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 3532 mSDsluCounter, 18700 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3532 SdHoareTripleChecker+Valid, 20287 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:35,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3532 Valid, 20287 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 23:48:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11662 states. [2023-12-21 23:48:35,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11662 to 11272. [2023-12-21 23:48:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11272 states, 11270 states have (on average 1.2811889973380657) internal successors, (14439), 11271 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11272 states to 11272 states and 14439 transitions. [2023-12-21 23:48:35,611 INFO L78 Accepts]: Start accepts. Automaton has 11272 states and 14439 transitions. Word has length 97 [2023-12-21 23:48:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:35,611 INFO L495 AbstractCegarLoop]: Abstraction has 11272 states and 14439 transitions. [2023-12-21 23:48:35,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:35,611 INFO L276 IsEmpty]: Start isEmpty. Operand 11272 states and 14439 transitions. [2023-12-21 23:48:35,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 23:48:35,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:35,612 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 23:48:35,615 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 [2023-12-21 23:48:35,815 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 [2023-12-21 23:48:35,816 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:35,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:35,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1018025283, now seen corresponding path program 1 times [2023-12-21 23:48:35,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:35,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934354649] [2023-12-21 23:48:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:48:35,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:35,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:35,817 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) [2023-12-21 23:48:35,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:48:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:48:35,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 23:48:35,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 31 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:37,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:48:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 31 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:37,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:37,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934354649] [2023-12-21 23:48:37,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934354649] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:48:37,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:48:37,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-21 23:48:37,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8379375] [2023-12-21 23:48:37,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:48:37,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 23:48:37,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:37,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 23:48:37,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-21 23:48:37,653 INFO L87 Difference]: Start difference. First operand 11272 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 6.846153846153846) internal successors, (178), 26 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:43,869 INFO L93 Difference]: Finished difference Result 13981 states and 17650 transitions. [2023-12-21 23:48:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-21 23:48:43,870 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.846153846153846) internal successors, (178), 26 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-21 23:48:43,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:43,882 INFO L225 Difference]: With dead ends: 13981 [2023-12-21 23:48:43,882 INFO L226 Difference]: Without dead ends: 13548 [2023-12-21 23:48:43,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-21 23:48:43,887 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 4948 mSDsluCounter, 24970 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4948 SdHoareTripleChecker+Valid, 26573 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:43,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4948 Valid, 26573 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 23:48:43,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13548 states. [2023-12-21 23:48:44,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13548 to 12600. [2023-12-21 23:48:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12600 states, 12598 states have (on average 1.270598507699635) internal successors, (16007), 12599 states have internal predecessors, (16007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:44,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12600 states to 12600 states and 16007 transitions. [2023-12-21 23:48:44,118 INFO L78 Accepts]: Start accepts. Automaton has 12600 states and 16007 transitions. Word has length 97 [2023-12-21 23:48:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:44,118 INFO L495 AbstractCegarLoop]: Abstraction has 12600 states and 16007 transitions. [2023-12-21 23:48:44,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.846153846153846) internal successors, (178), 26 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 12600 states and 16007 transitions. [2023-12-21 23:48:44,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 23:48:44,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:44,121 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:48:44,126 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 [2023-12-21 23:48:44,324 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 [2023-12-21 23:48:44,324 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:44,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash 735712425, now seen corresponding path program 2 times [2023-12-21 23:48:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798439197] [2023-12-21 23:48:44,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 23:48:44,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:44,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:44,326 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) [2023-12-21 23:48:44,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:48:44,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 23:48:44,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 23:48:44,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:48:44,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-12-21 23:48:44,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:48:44,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:44,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798439197] [2023-12-21 23:48:44,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798439197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:48:44,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:48:44,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 23:48:44,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019729905] [2023-12-21 23:48:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:48:44,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 23:48:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 23:48:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:48:44,959 INFO L87 Difference]: Start difference. First operand 12600 states and 16007 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:45,196 INFO L93 Difference]: Finished difference Result 13654 states and 17323 transitions. [2023-12-21 23:48:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:48:45,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 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 [2023-12-21 23:48:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:45,208 INFO L225 Difference]: With dead ends: 13654 [2023-12-21 23:48:45,208 INFO L226 Difference]: Without dead ends: 12736 [2023-12-21 23:48:45,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:48:45,212 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 1535 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:45,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 3111 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 23:48:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12736 states. [2023-12-21 23:48:45,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12736 to 12580. [2023-12-21 23:48:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12580 states, 12578 states have (on average 1.2674511051041502) internal successors, (15942), 12579 states have internal predecessors, (15942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12580 states to 12580 states and 15942 transitions. [2023-12-21 23:48:45,459 INFO L78 Accepts]: Start accepts. Automaton has 12580 states and 15942 transitions. Word has length 136 [2023-12-21 23:48:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:45,460 INFO L495 AbstractCegarLoop]: Abstraction has 12580 states and 15942 transitions. [2023-12-21 23:48:45,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 12580 states and 15942 transitions. [2023-12-21 23:48:45,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 23:48:45,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:45,462 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:48:45,466 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 (27)] Forceful destruction successful, exit code 0 [2023-12-21 23:48:45,664 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 [2023-12-21 23:48:45,665 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:45,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1090417997, now seen corresponding path program 2 times [2023-12-21 23:48:45,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:45,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863634597] [2023-12-21 23:48:45,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 23:48:45,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:45,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:45,667 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) [2023-12-21 23:48:45,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-21 23:48:45,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 23:48:45,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 23:48:45,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:48:45,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-12-21 23:48:46,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:48:46,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:46,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863634597] [2023-12-21 23:48:46,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863634597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:48:46,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:48:46,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 23:48:46,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604725803] [2023-12-21 23:48:46,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:48:46,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 23:48:46,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 23:48:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:48:46,218 INFO L87 Difference]: Start difference. First operand 12580 states and 15942 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:46,460 INFO L93 Difference]: Finished difference Result 13229 states and 16771 transitions. [2023-12-21 23:48:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:48:46,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-21 23:48:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:46,472 INFO L225 Difference]: With dead ends: 13229 [2023-12-21 23:48:46,472 INFO L226 Difference]: Without dead ends: 12850 [2023-12-21 23:48:46,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:48:46,475 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1528 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:46,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 3154 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 23:48:46,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12850 states. [2023-12-21 23:48:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12850 to 12772. [2023-12-21 23:48:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12772 states, 12770 states have (on average 1.2649960845732184) internal successors, (16154), 12771 states have internal predecessors, (16154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:46,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12772 states to 12772 states and 16154 transitions. [2023-12-21 23:48:46,744 INFO L78 Accepts]: Start accepts. Automaton has 12772 states and 16154 transitions. Word has length 136 [2023-12-21 23:48:46,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:46,744 INFO L495 AbstractCegarLoop]: Abstraction has 12772 states and 16154 transitions. [2023-12-21 23:48:46,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:46,745 INFO L276 IsEmpty]: Start isEmpty. Operand 12772 states and 16154 transitions. [2023-12-21 23:48:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 23:48:46,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:46,747 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:48:46,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-21 23:48:46,949 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 [2023-12-21 23:48:46,950 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:46,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:46,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1418667223, now seen corresponding path program 2 times [2023-12-21 23:48:46,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:46,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619704278] [2023-12-21 23:48:46,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 23:48:46,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:46,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:46,952 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) [2023-12-21 23:48:46,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:48:47,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 23:48:47,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 23:48:47,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:48:47,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-12-21 23:48:47,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:48:47,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:47,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619704278] [2023-12-21 23:48:47,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619704278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:48:47,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:48:47,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 23:48:47,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492150922] [2023-12-21 23:48:47,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:48:47,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 23:48:47,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:47,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 23:48:47,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:48:47,507 INFO L87 Difference]: Start difference. First operand 12772 states and 16154 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:48:47,811 INFO L93 Difference]: Finished difference Result 13439 states and 17004 transitions. [2023-12-21 23:48:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:48:47,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 [2023-12-21 23:48:47,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:48:47,822 INFO L225 Difference]: With dead ends: 13439 [2023-12-21 23:48:47,822 INFO L226 Difference]: Without dead ends: 13048 [2023-12-21 23:48:47,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:48:47,825 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1525 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:48:47,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 3144 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 23:48:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13048 states. [2023-12-21 23:48:48,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13048 to 12970. [2023-12-21 23:48:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12970 states, 12968 states have (on average 1.2625694016039481) internal successors, (16373), 12969 states have internal predecessors, (16373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12970 states to 12970 states and 16373 transitions. [2023-12-21 23:48:48,116 INFO L78 Accepts]: Start accepts. Automaton has 12970 states and 16373 transitions. Word has length 136 [2023-12-21 23:48:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:48:48,116 INFO L495 AbstractCegarLoop]: Abstraction has 12970 states and 16373 transitions. [2023-12-21 23:48:48,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:48:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 12970 states and 16373 transitions. [2023-12-21 23:48:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 23:48:48,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:48:48,118 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:48:48,121 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 [2023-12-21 23:48:48,321 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 [2023-12-21 23:48:48,321 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:48:48,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:48:48,321 INFO L85 PathProgramCache]: Analyzing trace with hash 727239148, now seen corresponding path program 1 times [2023-12-21 23:48:48,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:48:48,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198063003] [2023-12-21 23:48:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:48:48,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:48:48,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:48:48,323 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) [2023-12-21 23:48:48,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:48:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:48:48,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 23:48:48,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:48:49,744 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 54 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:49,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:48:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 54 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:48:50,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:48:50,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198063003] [2023-12-21 23:48:50,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198063003] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:48:50,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:48:50,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-21 23:48:50,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294765718] [2023-12-21 23:48:50,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:48:50,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 23:48:50,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:48:50,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 23:48:50,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1006, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 23:48:50,765 INFO L87 Difference]: Start difference. First operand 12970 states and 16373 transitions. Second operand has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:49:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:49:03,636 INFO L93 Difference]: Finished difference Result 14681 states and 18394 transitions. [2023-12-21 23:49:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-12-21 23:49:03,637 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 0 states have call successors, (0), 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 [2023-12-21 23:49:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:49:03,646 INFO L225 Difference]: With dead ends: 14681 [2023-12-21 23:49:03,646 INFO L226 Difference]: Without dead ends: 13467 [2023-12-21 23:49:03,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7456 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=3247, Invalid=20933, Unknown=0, NotChecked=0, Total=24180 [2023-12-21 23:49:03,651 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 21420 mSDsluCounter, 11296 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21420 SdHoareTripleChecker+Valid, 12930 SdHoareTripleChecker+Invalid, 2743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:49:03,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21420 Valid, 12930 Invalid, 2743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 23:49:03,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13467 states. [2023-12-21 23:49:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13467 to 13210. [2023-12-21 23:49:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13210 states, 13208 states have (on average 1.2607510599636584) internal successors, (16652), 13209 states have internal predecessors, (16652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:49:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13210 states to 13210 states and 16652 transitions. [2023-12-21 23:49:03,908 INFO L78 Accepts]: Start accepts. Automaton has 13210 states and 16652 transitions. Word has length 137 [2023-12-21 23:49:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:49:03,908 INFO L495 AbstractCegarLoop]: Abstraction has 13210 states and 16652 transitions. [2023-12-21 23:49:03,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:49:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 13210 states and 16652 transitions. [2023-12-21 23:49:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 23:49:03,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:49:03,910 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:49:03,916 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 [2023-12-21 23:49:04,111 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 [2023-12-21 23:49:04,111 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:49:04,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:49:04,112 INFO L85 PathProgramCache]: Analyzing trace with hash 255008656, now seen corresponding path program 1 times [2023-12-21 23:49:04,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:49:04,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034664717] [2023-12-21 23:49:04,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:49:04,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:49:04,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:49:04,113 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) [2023-12-21 23:49:04,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:49:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:49:04,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 23:49:04,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:49:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 134 proven. 52 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-21 23:49:06,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:49:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 63 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:49:08,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:49:08,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034664717] [2023-12-21 23:49:08,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034664717] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:49:08,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:49:08,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 39 [2023-12-21 23:49:08,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426598240] [2023-12-21 23:49:08,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:49:08,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-21 23:49:08,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:49:08,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-21 23:49:08,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 23:49:08,198 INFO L87 Difference]: Start difference. First operand 13210 states and 16652 transitions. Second operand has 39 states, 39 states have (on average 6.128205128205129) internal successors, (239), 39 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:50:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:50:32,297 INFO L93 Difference]: Finished difference Result 18687 states and 23021 transitions. [2023-12-21 23:50:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 304 states. [2023-12-21 23:50:32,299 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.128205128205129) internal successors, (239), 39 states have internal predecessors, (239), 0 states have call successors, (0), 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 [2023-12-21 23:50:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:50:32,314 INFO L225 Difference]: With dead ends: 18687 [2023-12-21 23:50:32,314 INFO L226 Difference]: Without dead ends: 16159 [2023-12-21 23:50:32,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47300 ImplicationChecksByTransitivity, 75.9s TimeCoverageRelationStatistics Valid=12461, Invalid=99429, Unknown=0, NotChecked=0, Total=111890 [2023-12-21 23:50:32,324 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 23894 mSDsluCounter, 20479 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23894 SdHoareTripleChecker+Valid, 22115 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 3636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:50:32,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23894 Valid, 22115 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [216 Valid, 3636 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-12-21 23:50:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16159 states. [2023-12-21 23:50:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16159 to 14299. [2023-12-21 23:50:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14299 states, 14297 states have (on average 1.253269916765755) internal successors, (17918), 14298 states have internal predecessors, (17918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:50:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14299 states to 14299 states and 17918 transitions. [2023-12-21 23:50:32,709 INFO L78 Accepts]: Start accepts. Automaton has 14299 states and 17918 transitions. Word has length 137 [2023-12-21 23:50:32,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:50:32,709 INFO L495 AbstractCegarLoop]: Abstraction has 14299 states and 17918 transitions. [2023-12-21 23:50:32,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.128205128205129) internal successors, (239), 39 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:50:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14299 states and 17918 transitions. [2023-12-21 23:50:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 23:50:32,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:50:32,711 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:50:32,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-21 23:50:32,926 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 [2023-12-21 23:50:32,927 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:50:32,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:50:32,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1720154305, now seen corresponding path program 1 times [2023-12-21 23:50:32,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:50:32,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806969267] [2023-12-21 23:50:32,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:50:32,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:50:32,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:50:32,929 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) [2023-12-21 23:50:32,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:50:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:50:33,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 23:50:33,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:50:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 131 proven. 70 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 23:50:34,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:50:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 131 proven. 70 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 23:50:35,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:50:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806969267] [2023-12-21 23:50:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806969267] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:50:35,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:50:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-21 23:50:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264918019] [2023-12-21 23:50:35,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:50:35,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 23:50:35,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:50:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 23:50:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 23:50:35,905 INFO L87 Difference]: Start difference. First operand 14299 states and 17918 transitions. Second operand has 34 states, 34 states have (on average 6.323529411764706) internal successors, (215), 34 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:51:19,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:51:19,657 INFO L93 Difference]: Finished difference Result 18924 states and 23332 transitions. [2023-12-21 23:51:19,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-12-21 23:51:19,658 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.323529411764706) internal successors, (215), 34 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 23:51:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:51:19,674 INFO L225 Difference]: With dead ends: 18924 [2023-12-21 23:51:19,674 INFO L226 Difference]: Without dead ends: 17643 [2023-12-21 23:51:19,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14589 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=5810, Invalid=31246, Unknown=0, NotChecked=0, Total=37056 [2023-12-21 23:51:19,685 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 20643 mSDsluCounter, 18919 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20643 SdHoareTripleChecker+Valid, 20537 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:51:19,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20643 Valid, 20537 Invalid, 2612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-21 23:51:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17643 states. [2023-12-21 23:51:20,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17643 to 16275. [2023-12-21 23:51:20,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16275 states, 16273 states have (on average 1.2423032016223192) internal successors, (20216), 16274 states have internal predecessors, (20216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:51:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16275 states to 16275 states and 20216 transitions. [2023-12-21 23:51:20,256 INFO L78 Accepts]: Start accepts. Automaton has 16275 states and 20216 transitions. Word has length 138 [2023-12-21 23:51:20,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:51:20,256 INFO L495 AbstractCegarLoop]: Abstraction has 16275 states and 20216 transitions. [2023-12-21 23:51:20,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.323529411764706) internal successors, (215), 34 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:51:20,257 INFO L276 IsEmpty]: Start isEmpty. Operand 16275 states and 20216 transitions. [2023-12-21 23:51:20,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 23:51:20,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:51:20,259 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:51:20,262 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 [2023-12-21 23:51:20,462 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 [2023-12-21 23:51:20,463 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:51:20,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:51:20,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1965172615, now seen corresponding path program 1 times [2023-12-21 23:51:20,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:51:20,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006497022] [2023-12-21 23:51:20,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:51:20,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:51:20,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:51:20,464 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) [2023-12-21 23:51:20,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:51:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:51:20,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 23:51:20,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:51:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 133 proven. 61 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 23:51:22,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:51:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 133 proven. 61 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 23:51:23,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:51:23,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006497022] [2023-12-21 23:51:23,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006497022] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:51:23,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:51:23,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-21 23:51:23,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077872831] [2023-12-21 23:51:23,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:51:23,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 23:51:23,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:51:23,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 23:51:23,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 23:51:23,706 INFO L87 Difference]: Start difference. First operand 16275 states and 20216 transitions. Second operand has 34 states, 34 states have (on average 6.0588235294117645) internal successors, (206), 34 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:11,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:52:11,731 INFO L93 Difference]: Finished difference Result 21751 states and 26693 transitions. [2023-12-21 23:52:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-21 23:52:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.0588235294117645) internal successors, (206), 34 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 23:52:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:52:11,743 INFO L225 Difference]: With dead ends: 21751 [2023-12-21 23:52:11,744 INFO L226 Difference]: Without dead ends: 19430 [2023-12-21 23:52:11,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19475 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=7234, Invalid=42272, Unknown=0, NotChecked=0, Total=49506 [2023-12-21 23:52:11,747 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 22574 mSDsluCounter, 15436 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22574 SdHoareTripleChecker+Valid, 17042 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-21 23:52:11,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22574 Valid, 17042 Invalid, 2123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-21 23:52:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19430 states. [2023-12-21 23:52:12,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19430 to 17452. [2023-12-21 23:52:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17452 states, 17450 states have (on average 1.2383381088825214) internal successors, (21609), 17451 states have internal predecessors, (21609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17452 states to 17452 states and 21609 transitions. [2023-12-21 23:52:12,395 INFO L78 Accepts]: Start accepts. Automaton has 17452 states and 21609 transitions. Word has length 138 [2023-12-21 23:52:12,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:52:12,395 INFO L495 AbstractCegarLoop]: Abstraction has 17452 states and 21609 transitions. [2023-12-21 23:52:12,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.0588235294117645) internal successors, (206), 34 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:12,396 INFO L276 IsEmpty]: Start isEmpty. Operand 17452 states and 21609 transitions. [2023-12-21 23:52:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 23:52:12,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:52:12,398 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-21 23:52:12,403 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 [2023-12-21 23:52:12,598 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 [2023-12-21 23:52:12,598 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:52:12,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:52:12,599 INFO L85 PathProgramCache]: Analyzing trace with hash 624137659, now seen corresponding path program 1 times [2023-12-21 23:52:12,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:52:12,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643254265] [2023-12-21 23:52:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:52:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:52:12,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:52:12,600 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) [2023-12-21 23:52:12,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:52:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:52:12,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 23:52:12,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:52:12,838 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 15 proven. 191 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 23:52:12,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:52:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 15 proven. 191 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 23:52:13,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:52:13,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643254265] [2023-12-21 23:52:13,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643254265] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:52:13,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:52:13,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-21 23:52:13,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294668441] [2023-12-21 23:52:13,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:52:13,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 23:52:13,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:52:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 23:52:13,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 23:52:13,057 INFO L87 Difference]: Start difference. First operand 17452 states and 21609 transitions. Second operand has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:52:14,558 INFO L93 Difference]: Finished difference Result 41708 states and 51380 transitions. [2023-12-21 23:52:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 23:52:14,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 0 states have call successors, (0), 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 140 [2023-12-21 23:52:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:52:14,590 INFO L225 Difference]: With dead ends: 41708 [2023-12-21 23:52:14,590 INFO L226 Difference]: Without dead ends: 34388 [2023-12-21 23:52:14,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 23:52:14,598 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 3160 mSDsluCounter, 4888 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 6452 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:52:14,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3160 Valid, 6452 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 23:52:14,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34388 states. [2023-12-21 23:52:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34388 to 34292. [2023-12-21 23:52:16,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34292 states, 34290 states have (on average 1.1747739865850102) internal successors, (40283), 34291 states have internal predecessors, (40283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34292 states to 34292 states and 40283 transitions. [2023-12-21 23:52:16,192 INFO L78 Accepts]: Start accepts. Automaton has 34292 states and 40283 transitions. Word has length 140 [2023-12-21 23:52:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:52:16,192 INFO L495 AbstractCegarLoop]: Abstraction has 34292 states and 40283 transitions. [2023-12-21 23:52:16,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 34292 states and 40283 transitions. [2023-12-21 23:52:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 23:52:16,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:52:16,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 23:52:16,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-21 23:52:16,398 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 [2023-12-21 23:52:16,398 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:52:16,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:52:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1595507772, now seen corresponding path program 1 times [2023-12-21 23:52:16,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:52:16,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858451511] [2023-12-21 23:52:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:52:16,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:52:16,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:52:16,400 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) [2023-12-21 23:52:16,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-21 23:52:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:52:16,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 23:52:16,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:52:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 32 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:52:17,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:52:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 32 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:52:18,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:52:18,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858451511] [2023-12-21 23:52:18,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858451511] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:52:18,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:52:18,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-21 23:52:18,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149236646] [2023-12-21 23:52:18,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:52:18,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 23:52:18,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:52:18,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 23:52:18,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 23:52:18,398 INFO L87 Difference]: Start difference. First operand 34292 states and 40283 transitions. Second operand has 34 states, 34 states have (on average 8.029411764705882) internal successors, (273), 34 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:23,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:52:23,260 INFO L93 Difference]: Finished difference Result 46176 states and 53972 transitions. [2023-12-21 23:52:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-21 23:52:23,261 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.029411764705882) internal successors, (273), 34 states have internal predecessors, (273), 0 states have call successors, (0), 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 141 [2023-12-21 23:52:23,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:52:23,289 INFO L225 Difference]: With dead ends: 46176 [2023-12-21 23:52:23,289 INFO L226 Difference]: Without dead ends: 29570 [2023-12-21 23:52:23,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=914, Invalid=5248, Unknown=0, NotChecked=0, Total=6162 [2023-12-21 23:52:23,303 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 22382 mSDsluCounter, 12077 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22382 SdHoareTripleChecker+Valid, 13623 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:52:23,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22382 Valid, 13623 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 23:52:23,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29570 states. [2023-12-21 23:52:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29570 to 25581. [2023-12-21 23:52:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25581 states, 25579 states have (on average 1.1839790453106063) internal successors, (30285), 25580 states have internal predecessors, (30285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:24,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25581 states to 25581 states and 30285 transitions. [2023-12-21 23:52:24,431 INFO L78 Accepts]: Start accepts. Automaton has 25581 states and 30285 transitions. Word has length 141 [2023-12-21 23:52:24,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:52:24,431 INFO L495 AbstractCegarLoop]: Abstraction has 25581 states and 30285 transitions. [2023-12-21 23:52:24,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.029411764705882) internal successors, (273), 34 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:24,431 INFO L276 IsEmpty]: Start isEmpty. Operand 25581 states and 30285 transitions. [2023-12-21 23:52:24,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 23:52:24,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:52:24,433 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 23:52:24,438 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 [2023-12-21 23:52:24,636 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 [2023-12-21 23:52:24,637 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:52:24,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:52:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash -449642084, now seen corresponding path program 1 times [2023-12-21 23:52:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:52:24,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414909393] [2023-12-21 23:52:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:52:24,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:52:24,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:52:24,638 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) [2023-12-21 23:52:24,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:52:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:52:24,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 23:52:24,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:52:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:52:25,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:52:26,596 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 48 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:52:26,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:52:26,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414909393] [2023-12-21 23:52:26,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414909393] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:52:26,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:52:26,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-21 23:52:26,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803643141] [2023-12-21 23:52:26,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:52:26,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 23:52:26,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:52:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 23:52:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 23:52:26,598 INFO L87 Difference]: Start difference. First operand 25581 states and 30285 transitions. Second operand has 34 states, 34 states have (on average 7.882352941176471) internal successors, (268), 34 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:52:31,461 INFO L93 Difference]: Finished difference Result 28695 states and 33782 transitions. [2023-12-21 23:52:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-21 23:52:31,461 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.882352941176471) internal successors, (268), 34 states have internal predecessors, (268), 0 states have call successors, (0), 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 141 [2023-12-21 23:52:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:52:31,478 INFO L225 Difference]: With dead ends: 28695 [2023-12-21 23:52:31,478 INFO L226 Difference]: Without dead ends: 18848 [2023-12-21 23:52:31,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=884, Invalid=4816, Unknown=0, NotChecked=0, Total=5700 [2023-12-21 23:52:31,486 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 20545 mSDsluCounter, 12020 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20545 SdHoareTripleChecker+Valid, 13563 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 23:52:31,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20545 Valid, 13563 Invalid, 2282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 23:52:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18848 states. [2023-12-21 23:52:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18848 to 15019. [2023-12-21 23:52:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15019 states, 15017 states have (on average 1.2200173137111274) internal successors, (18321), 15018 states have internal predecessors, (18321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15019 states to 15019 states and 18321 transitions. [2023-12-21 23:52:32,015 INFO L78 Accepts]: Start accepts. Automaton has 15019 states and 18321 transitions. Word has length 141 [2023-12-21 23:52:32,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:52:32,015 INFO L495 AbstractCegarLoop]: Abstraction has 15019 states and 18321 transitions. [2023-12-21 23:52:32,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.882352941176471) internal successors, (268), 34 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:52:32,015 INFO L276 IsEmpty]: Start isEmpty. Operand 15019 states and 18321 transitions. [2023-12-21 23:52:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 23:52:32,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:52:32,018 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-12-21 23:52:32,025 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 [2023-12-21 23:52:32,218 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 [2023-12-21 23:52:32,218 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:52:32,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:52:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 584918049, now seen corresponding path program 1 times [2023-12-21 23:52:32,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:52:32,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692173651] [2023-12-21 23:52:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:52:32,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:52:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:52:32,220 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) [2023-12-21 23:52:32,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:52:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:52:32,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 23:52:32,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:52:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 138 proven. 70 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 23:52:36,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:52:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 138 proven. 70 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 23:52:37,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:52:37,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692173651] [2023-12-21 23:52:37,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692173651] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:52:37,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:52:37,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19] total 41 [2023-12-21 23:52:37,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889653862] [2023-12-21 23:52:37,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:52:37,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-21 23:52:37,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:52:37,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-21 23:52:37,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1490, Unknown=0, NotChecked=0, Total=1640 [2023-12-21 23:52:37,953 INFO L87 Difference]: Start difference. First operand 15019 states and 18321 transitions. Second operand has 41 states, 41 states have (on average 5.317073170731708) internal successors, (218), 41 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:53:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:53:33,049 INFO L93 Difference]: Finished difference Result 19504 states and 23140 transitions. [2023-12-21 23:53:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2023-12-21 23:53:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.317073170731708) internal successors, (218), 41 states have internal predecessors, (218), 0 states have call successors, (0), 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 142 [2023-12-21 23:53:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:53:33,063 INFO L225 Difference]: With dead ends: 19504 [2023-12-21 23:53:33,063 INFO L226 Difference]: Without dead ends: 15667 [2023-12-21 23:53:33,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11310 ImplicationChecksByTransitivity, 50.4s TimeCoverageRelationStatistics Valid=4356, Invalid=28586, Unknown=0, NotChecked=0, Total=32942 [2023-12-21 23:53:33,069 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 13716 mSDsluCounter, 24298 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13716 SdHoareTripleChecker+Valid, 25882 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-21 23:53:33,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13716 Valid, 25882 Invalid, 3295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [163 Valid, 3132 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-21 23:53:33,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15667 states. [2023-12-21 23:53:33,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15667 to 14327. [2023-12-21 23:53:33,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14327 states, 14325 states have (on average 1.226457242582897) internal successors, (17569), 14326 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:53:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14327 states to 14327 states and 17569 transitions. [2023-12-21 23:53:33,581 INFO L78 Accepts]: Start accepts. Automaton has 14327 states and 17569 transitions. Word has length 142 [2023-12-21 23:53:33,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:53:33,582 INFO L495 AbstractCegarLoop]: Abstraction has 14327 states and 17569 transitions. [2023-12-21 23:53:33,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.317073170731708) internal successors, (218), 41 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:53:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 14327 states and 17569 transitions. [2023-12-21 23:53:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 23:53:33,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:53:33,583 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-12-21 23:53:33,588 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 [2023-12-21 23:53:33,783 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 [2023-12-21 23:53:33,784 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:53:33,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:53:33,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1243704929, now seen corresponding path program 1 times [2023-12-21 23:53:33,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:53:33,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095887234] [2023-12-21 23:53:33,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:53:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:53:33,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:53:33,786 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) [2023-12-21 23:53:33,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:53:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:53:33,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 23:53:33,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:53:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 142 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-21 23:53:36,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:53:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 66 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:53:38,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:53:38,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095887234] [2023-12-21 23:53:38,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095887234] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:53:38,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:53:38,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 43 [2023-12-21 23:53:38,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391452805] [2023-12-21 23:53:38,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:53:38,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-21 23:53:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:53:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-21 23:53:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1607, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 23:53:38,330 INFO L87 Difference]: Start difference. First operand 14327 states and 17569 transitions. Second operand has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 43 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:54:09,970 INFO L93 Difference]: Finished difference Result 17351 states and 20830 transitions. [2023-12-21 23:54:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2023-12-21 23:54:09,971 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 43 states have internal predecessors, (238), 0 states have call successors, (0), 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 142 [2023-12-21 23:54:09,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:54:09,984 INFO L225 Difference]: With dead ends: 17351 [2023-12-21 23:54:09,984 INFO L226 Difference]: Without dead ends: 16363 [2023-12-21 23:54:09,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16376 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=4958, Invalid=41914, Unknown=0, NotChecked=0, Total=46872 [2023-12-21 23:54:09,990 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 28425 mSDsluCounter, 24521 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28425 SdHoareTripleChecker+Valid, 26115 SdHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:54:09,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28425 Valid, 26115 Invalid, 3143 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [161 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-21 23:54:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16363 states. [2023-12-21 23:54:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16363 to 14782. [2023-12-21 23:54:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14782 states, 14780 states have (on average 1.22212449255751) internal successors, (18063), 14781 states have internal predecessors, (18063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14782 states to 14782 states and 18063 transitions. [2023-12-21 23:54:10,596 INFO L78 Accepts]: Start accepts. Automaton has 14782 states and 18063 transitions. Word has length 142 [2023-12-21 23:54:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:54:10,596 INFO L495 AbstractCegarLoop]: Abstraction has 14782 states and 18063 transitions. [2023-12-21 23:54:10,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.534883720930233) internal successors, (238), 43 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 14782 states and 18063 transitions. [2023-12-21 23:54:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 23:54:10,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:54:10,598 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-12-21 23:54:10,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-21 23:54:10,798 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 [2023-12-21 23:54:10,799 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:54:10,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:54:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1972058775, now seen corresponding path program 1 times [2023-12-21 23:54:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:54:10,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548449728] [2023-12-21 23:54:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:54:10,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:54:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:54:10,801 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) [2023-12-21 23:54:10,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:54:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:54:10,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 23:54:10,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:54:11,922 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 142 proven. 67 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 23:54:11,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:54:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 139 proven. 70 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 23:54:12,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:54:12,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548449728] [2023-12-21 23:54:12,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548449728] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:54:12,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:54:12,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2023-12-21 23:54:12,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444143500] [2023-12-21 23:54:12,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:54:12,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-21 23:54:12,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:54:12,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-21 23:54:12,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2023-12-21 23:54:12,510 INFO L87 Difference]: Start difference. First operand 14782 states and 18063 transitions. Second operand has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:54:14,579 INFO L93 Difference]: Finished difference Result 15120 states and 18435 transitions. [2023-12-21 23:54:14,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 23:54:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 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 142 [2023-12-21 23:54:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:54:14,593 INFO L225 Difference]: With dead ends: 15120 [2023-12-21 23:54:14,593 INFO L226 Difference]: Without dead ends: 13019 [2023-12-21 23:54:14,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2023-12-21 23:54:14,597 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 14818 mSDsluCounter, 6476 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14818 SdHoareTripleChecker+Valid, 7999 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 23:54:14,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14818 Valid, 7999 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 23:54:14,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13019 states. [2023-12-21 23:54:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13019 to 12287. [2023-12-21 23:54:14,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12287 states, 12285 states have (on average 1.2477004477004476) internal successors, (15328), 12286 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12287 states to 12287 states and 15328 transitions. [2023-12-21 23:54:14,925 INFO L78 Accepts]: Start accepts. Automaton has 12287 states and 15328 transitions. Word has length 142 [2023-12-21 23:54:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:54:14,925 INFO L495 AbstractCegarLoop]: Abstraction has 12287 states and 15328 transitions. [2023-12-21 23:54:14,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 12287 states and 15328 transitions. [2023-12-21 23:54:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 23:54:14,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:54:14,927 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-12-21 23:54:14,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-21 23:54:15,127 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 [2023-12-21 23:54:15,127 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:54:15,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:54:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1635235007, now seen corresponding path program 1 times [2023-12-21 23:54:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:54:15,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982537230] [2023-12-21 23:54:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:54:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:54:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:54:15,129 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) [2023-12-21 23:54:15,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:54:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:54:15,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-21 23:54:15,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:54:17,608 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 138 proven. 71 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 23:54:17,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:54:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 32 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:54:19,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:54:19,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982537230] [2023-12-21 23:54:19,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982537230] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:54:19,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:54:19,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 44 [2023-12-21 23:54:19,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821291479] [2023-12-21 23:54:19,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:54:19,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-21 23:54:19,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:54:19,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-21 23:54:19,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1694, Unknown=0, NotChecked=0, Total=1892 [2023-12-21 23:54:19,867 INFO L87 Difference]: Start difference. First operand 12287 states and 15328 transitions. Second operand has 44 states, 44 states have (on average 5.909090909090909) internal successors, (260), 44 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:40,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:54:40,222 INFO L93 Difference]: Finished difference Result 12922 states and 15992 transitions. [2023-12-21 23:54:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-12-21 23:54:40,223 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 5.909090909090909) internal successors, (260), 44 states have internal predecessors, (260), 0 states have call successors, (0), 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 142 [2023-12-21 23:54:40,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:54:40,231 INFO L225 Difference]: With dead ends: 12922 [2023-12-21 23:54:40,232 INFO L226 Difference]: Without dead ends: 11047 [2023-12-21 23:54:40,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6817 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=2606, Invalid=19744, Unknown=0, NotChecked=0, Total=22350 [2023-12-21 23:54:40,235 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 32988 mSDsluCounter, 16535 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32988 SdHoareTripleChecker+Valid, 18095 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:54:40,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32988 Valid, 18095 Invalid, 2474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-21 23:54:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2023-12-21 23:54:40,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 10442. [2023-12-21 23:54:40,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10442 states, 10440 states have (on average 1.278352490421456) internal successors, (13346), 10441 states have internal predecessors, (13346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10442 states to 10442 states and 13346 transitions. [2023-12-21 23:54:40,399 INFO L78 Accepts]: Start accepts. Automaton has 10442 states and 13346 transitions. Word has length 142 [2023-12-21 23:54:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:54:40,399 INFO L495 AbstractCegarLoop]: Abstraction has 10442 states and 13346 transitions. [2023-12-21 23:54:40,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 5.909090909090909) internal successors, (260), 44 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10442 states and 13346 transitions. [2023-12-21 23:54:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 23:54:40,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:54:40,400 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-12-21 23:54:40,403 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 [2023-12-21 23:54:40,600 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 [2023-12-21 23:54:40,601 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:54:40,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:54:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1239748454, now seen corresponding path program 2 times [2023-12-21 23:54:40,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:54:40,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130049435] [2023-12-21 23:54:40,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 23:54:40,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:54:40,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:54:40,602 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) [2023-12-21 23:54:40,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:54:40,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 23:54:40,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 23:54:40,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 23:54:40,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:54:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 56 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:54:43,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:54:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 32 proven. 205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:54:46,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:54:46,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130049435] [2023-12-21 23:54:46,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130049435] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:54:46,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:54:46,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 48 [2023-12-21 23:54:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460124247] [2023-12-21 23:54:46,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:54:46,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-21 23:54:46,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:54:46,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-21 23:54:46,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1961, Unknown=0, NotChecked=0, Total=2256 [2023-12-21 23:54:46,949 INFO L87 Difference]: Start difference. First operand 10442 states and 13346 transitions. Second operand has 48 states, 48 states have (on average 5.770833333333333) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:54:59,712 INFO L93 Difference]: Finished difference Result 10979 states and 13918 transitions. [2023-12-21 23:54:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-21 23:54:59,717 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.770833333333333) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 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 143 [2023-12-21 23:54:59,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:54:59,727 INFO L225 Difference]: With dead ends: 10979 [2023-12-21 23:54:59,727 INFO L226 Difference]: Without dead ends: 10559 [2023-12-21 23:54:59,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2716 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=2162, Invalid=9610, Unknown=0, NotChecked=0, Total=11772 [2023-12-21 23:54:59,731 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 26924 mSDsluCounter, 22879 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26924 SdHoareTripleChecker+Valid, 24387 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 23:54:59,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26924 Valid, 24387 Invalid, 1805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 23:54:59,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2023-12-21 23:54:59,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 10247. [2023-12-21 23:54:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10247 states, 10245 states have (on average 1.2820888238164958) internal successors, (13135), 10246 states have internal predecessors, (13135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10247 states to 10247 states and 13135 transitions. [2023-12-21 23:54:59,885 INFO L78 Accepts]: Start accepts. Automaton has 10247 states and 13135 transitions. Word has length 143 [2023-12-21 23:54:59,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:54:59,885 INFO L495 AbstractCegarLoop]: Abstraction has 10247 states and 13135 transitions. [2023-12-21 23:54:59,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.770833333333333) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:54:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 10247 states and 13135 transitions. [2023-12-21 23:54:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 23:54:59,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:54:59,887 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 23:54:59,896 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 [2023-12-21 23:55:00,090 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 [2023-12-21 23:55:00,090 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:55:00,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:55:00,091 INFO L85 PathProgramCache]: Analyzing trace with hash -618902559, now seen corresponding path program 1 times [2023-12-21 23:55:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:55:00,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125915151] [2023-12-21 23:55:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:55:00,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:55:00,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:55:00,092 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) [2023-12-21 23:55:00,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-21 23:55:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:55:00,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 23:55:00,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:55:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 153 proven. 42 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-21 23:55:01,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:55:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 148 proven. 47 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-21 23:55:02,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:55:02,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125915151] [2023-12-21 23:55:02,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125915151] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:55:02,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:55:02,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 25 [2023-12-21 23:55:02,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67604231] [2023-12-21 23:55:02,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:55:02,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-21 23:55:02,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:55:02,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-21 23:55:02,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2023-12-21 23:55:02,028 INFO L87 Difference]: Start difference. First operand 10247 states and 13135 transitions. Second operand has 25 states, 25 states have (on average 8.08) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:55:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:55:03,321 INFO L93 Difference]: Finished difference Result 10251 states and 13137 transitions. [2023-12-21 23:55:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 23:55:03,322 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.08) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 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 144 [2023-12-21 23:55:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:55:03,330 INFO L225 Difference]: With dead ends: 10251 [2023-12-21 23:55:03,330 INFO L226 Difference]: Without dead ends: 10101 [2023-12-21 23:55:03,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 23:55:03,332 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 10295 mSDsluCounter, 6067 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10295 SdHoareTripleChecker+Valid, 7556 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:55:03,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10295 Valid, 7556 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 23:55:03,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10101 states. [2023-12-21 23:55:03,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10101 to 10099. [2023-12-21 23:55:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10099 states, 10097 states have (on average 1.2848370803208873) internal successors, (12973), 10098 states have internal predecessors, (12973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:55:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10099 states to 10099 states and 12973 transitions. [2023-12-21 23:55:03,466 INFO L78 Accepts]: Start accepts. Automaton has 10099 states and 12973 transitions. Word has length 144 [2023-12-21 23:55:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:55:03,466 INFO L495 AbstractCegarLoop]: Abstraction has 10099 states and 12973 transitions. [2023-12-21 23:55:03,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.08) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:55:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 10099 states and 12973 transitions. [2023-12-21 23:55:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 23:55:03,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:55:03,467 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:55:03,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-21 23:55:03,667 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 [2023-12-21 23:55:03,668 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:55:03,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:55:03,668 INFO L85 PathProgramCache]: Analyzing trace with hash 921039036, now seen corresponding path program 1 times [2023-12-21 23:55:03,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:55:03,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334935791] [2023-12-21 23:55:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:55:03,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:55:03,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:55:03,669 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) [2023-12-21 23:55:03,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:55:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:55:03,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 23:55:03,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:55:06,096 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-12-21 23:55:06,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:55:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-12-21 23:55:08,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:55:08,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334935791] [2023-12-21 23:55:08,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334935791] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:55:08,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:55:08,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2023-12-21 23:55:08,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028564392] [2023-12-21 23:55:08,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:55:08,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-21 23:55:08,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:55:08,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-21 23:55:08,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 23:55:08,414 INFO L87 Difference]: Start difference. First operand 10099 states and 12973 transitions. Second operand has 38 states, 38 states have (on average 3.736842105263158) internal successors, (142), 38 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:55:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:55:11,219 INFO L93 Difference]: Finished difference Result 10099 states and 12973 transitions. [2023-12-21 23:55:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 23:55:11,220 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.736842105263158) internal successors, (142), 38 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2023-12-21 23:55:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:55:11,228 INFO L225 Difference]: With dead ends: 10099 [2023-12-21 23:55:11,228 INFO L226 Difference]: Without dead ends: 9767 [2023-12-21 23:55:11,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=482, Invalid=1968, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 23:55:11,230 INFO L413 NwaCegarLoop]: 1460 mSDtfsCounter, 13209 mSDsluCounter, 16020 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13209 SdHoareTripleChecker+Valid, 17480 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:55:11,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13209 Valid, 17480 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 23:55:11,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2023-12-21 23:55:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2023-12-21 23:55:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.293262338726193) internal successors, (12630), 9766 states have internal predecessors, (12630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:55:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12630 transitions. [2023-12-21 23:55:11,334 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12630 transitions. Word has length 147 [2023-12-21 23:55:11,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:55:11,335 INFO L495 AbstractCegarLoop]: Abstraction has 9767 states and 12630 transitions. [2023-12-21 23:55:11,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.736842105263158) internal successors, (142), 38 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:55:11,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12630 transitions. [2023-12-21 23:55:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-21 23:55:11,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:55:11,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:55:11,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-21 23:55:11,537 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 [2023-12-21 23:55:11,537 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:55:11,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:55:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash 193950995, now seen corresponding path program 1 times [2023-12-21 23:55:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:55:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169065410] [2023-12-21 23:55:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:55:11,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:55:11,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:55:11,539 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) [2023-12-21 23:55:11,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:55:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:55:11,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 23:55:11,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:55:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 58 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:55:12,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:55:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 58 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:55:12,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:55:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169065410] [2023-12-21 23:55:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169065410] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:55:12,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:55:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 23:55:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344131659] [2023-12-21 23:55:12,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:55:12,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 23:55:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:55:12,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 23:55:12,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-21 23:55:12,737 INFO L87 Difference]: Start difference. First operand 9767 states and 12630 transitions. Second operand has 7 states, 7 states have (on average 37.285714285714285) internal successors, (261), 6 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) [2023-12-21 23:56:54,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:56:54,576 INFO L93 Difference]: Finished difference Result 32370 states and 44545 transitions. [2023-12-21 23:56:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 23:56:54,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.285714285714285) internal successors, (261), 6 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 155 [2023-12-21 23:56:54,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:56:54,598 INFO L225 Difference]: With dead ends: 32370 [2023-12-21 23:56:54,598 INFO L226 Difference]: Without dead ends: 21783 [2023-12-21 23:56:54,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-21 23:56:54,606 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 6307 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9289 mSolverCounterSat, 3003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 12292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3003 IncrementalHoareTripleChecker+Valid, 9289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:56:54,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 688 Invalid, 12292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3003 Valid, 9289 Invalid, 0 Unknown, 0 Unchecked, 101.1s Time] [2023-12-21 23:56:54,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21783 states. [2023-12-21 23:56:54,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21783 to 21032. [2023-12-21 23:56:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21032 states, 21031 states have (on average 1.1825876087680092) internal successors, (24871), 21031 states have internal predecessors, (24871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:56:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21032 states to 21032 states and 24871 transitions. [2023-12-21 23:56:54,842 INFO L78 Accepts]: Start accepts. Automaton has 21032 states and 24871 transitions. Word has length 155 [2023-12-21 23:56:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:56:54,842 INFO L495 AbstractCegarLoop]: Abstraction has 21032 states and 24871 transitions. [2023-12-21 23:56:54,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.285714285714285) internal successors, (261), 6 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) [2023-12-21 23:56:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 21032 states and 24871 transitions. [2023-12-21 23:56:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-12-21 23:56:54,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:56:54,844 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:56:54,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-21 23:56:55,047 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 [2023-12-21 23:56:55,048 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:56:55,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:56:55,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1433926686, now seen corresponding path program 1 times [2023-12-21 23:56:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:56:55,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739110335] [2023-12-21 23:56:55,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:56:55,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:56:55,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:56:55,050 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) [2023-12-21 23:56:55,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:56:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:56:55,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:56:55,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:56:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 25 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:56:55,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:56:56,835 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:56:56,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:56:56,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739110335] [2023-12-21 23:56:56,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739110335] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 23:56:56,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 23:56:56,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-21 23:56:56,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384042866] [2023-12-21 23:56:56,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:56:56,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:56:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:56:56,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:56:56,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:56:56,836 INFO L87 Difference]: Start difference. First operand 21032 states and 24871 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:58:12,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:58:12,687 INFO L93 Difference]: Finished difference Result 56331 states and 66287 transitions. [2023-12-21 23:58:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:58:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2023-12-21 23:58:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:58:12,726 INFO L225 Difference]: With dead ends: 56331 [2023-12-21 23:58:12,726 INFO L226 Difference]: Without dead ends: 35301 [2023-12-21 23:58:12,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:58:12,743 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 713 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 975 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 975 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:58:12,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 80 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [975 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 75.4s Time] [2023-12-21 23:58:12,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35301 states. [2023-12-21 23:58:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35301 to 34550. [2023-12-21 23:58:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34550 states, 34549 states have (on average 1.1601782974905208) internal successors, (40083), 34549 states have internal predecessors, (40083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:58:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34550 states to 34550 states and 40083 transitions. [2023-12-21 23:58:13,121 INFO L78 Accepts]: Start accepts. Automaton has 34550 states and 40083 transitions. Word has length 237 [2023-12-21 23:58:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:58:13,122 INFO L495 AbstractCegarLoop]: Abstraction has 34550 states and 40083 transitions. [2023-12-21 23:58:13,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:58:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 34550 states and 40083 transitions. [2023-12-21 23:58:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-21 23:58:13,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:58:13,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:58:13,128 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 [2023-12-21 23:58:13,323 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 [2023-12-21 23:58:13,323 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:58:13,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:58:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1294041368, now seen corresponding path program 1 times [2023-12-21 23:58:13,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:58:13,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659571833] [2023-12-21 23:58:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:58:13,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:58:13,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:58:13,326 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) [2023-12-21 23:58:13,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:58:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:58:13,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 23:58:13,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:58:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:58:13,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:58:13,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:58:13,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659571833] [2023-12-21 23:58:13,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659571833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:58:13,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:58:13,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:58:13,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542178059] [2023-12-21 23:58:13,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:58:13,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 23:58:13,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:58:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 23:58:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:58:13,931 INFO L87 Difference]: Start difference. First operand 34550 states and 40083 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:58:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:58:43,512 INFO L93 Difference]: Finished difference Result 69098 states and 80164 transitions. [2023-12-21 23:58:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 23:58:43,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 241 [2023-12-21 23:58:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:58:43,557 INFO L225 Difference]: With dead ends: 69098 [2023-12-21 23:58:43,557 INFO L226 Difference]: Without dead ends: 34550 [2023-12-21 23:58:43,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:58:43,578 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 1292 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4295 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 4441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 4295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2023-12-21 23:58:43,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 532 Invalid, 4441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 4295 Invalid, 0 Unknown, 0 Unchecked, 29.1s Time] [2023-12-21 23:58:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34550 states. [2023-12-21 23:58:43,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34550 to 34550. [2023-12-21 23:58:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34550 states, 34549 states have (on average 1.159396798749602) internal successors, (40056), 34549 states have internal predecessors, (40056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:58:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34550 states to 34550 states and 40056 transitions. [2023-12-21 23:58:43,990 INFO L78 Accepts]: Start accepts. Automaton has 34550 states and 40056 transitions. Word has length 241 [2023-12-21 23:58:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:58:43,990 INFO L495 AbstractCegarLoop]: Abstraction has 34550 states and 40056 transitions. [2023-12-21 23:58:43,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 23:58:43,991 INFO L276 IsEmpty]: Start isEmpty. Operand 34550 states and 40056 transitions. [2023-12-21 23:58:43,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-21 23:58:43,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:58:43,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:58:43,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2023-12-21 23:58:44,192 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 [2023-12-21 23:58:44,192 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:58:44,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:58:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1308123202, now seen corresponding path program 1 times [2023-12-21 23:58:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:58:44,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575076325] [2023-12-21 23:58:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:58:44,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:58:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:58:44,195 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) [2023-12-21 23:58:44,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-21 23:58:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:58:44,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:58:44,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:58:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:58:44,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:58:44,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:58:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575076325] [2023-12-21 23:58:44,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575076325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:58:44,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:58:44,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:58:44,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265132699] [2023-12-21 23:58:44,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:58:44,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:58:44,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:58:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:58:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:58:44,562 INFO L87 Difference]: Start difference. First operand 34550 states and 40056 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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... [2023-12-21 23:59:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:03,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:03,604 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 444 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2023-12-21 23:59:03,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 904 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2023-12-21 23:59:03,605 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-21 23:59:03,611 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 [2023-12-21 23:59:03,633 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 (47)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 23:59:03,633 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 [2023-12-21 23:59:03,806 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 [2023-12-21 23:59:03,807 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (34550states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24900 states constructed, input type IntersectNwa). [2023-12-21 23:59:03,808 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-21 23:59:03,810 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-21 23:59:03,812 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 23:59:03,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:59:03 BoogieIcfgContainer [2023-12-21 23:59:03,813 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 23:59:03,813 INFO L158 Benchmark]: Toolchain (without parser) took 856323.60ms. Allocated memory was 248.5MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 185.8MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 788.8MB. Max. memory is 8.0GB. [2023-12-21 23:59:03,813 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 23:59:03,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1238.24ms. Allocated memory is still 248.5MB. Free memory was 185.5MB in the beginning and 184.9MB in the end (delta: 603.1kB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. [2023-12-21 23:59:03,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.46ms. Allocated memory is still 248.5MB. Free memory was 184.9MB in the beginning and 149.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-21 23:59:03,813 INFO L158 Benchmark]: Boogie Preprocessor took 235.84ms. Allocated memory is still 248.5MB. Free memory was 149.2MB in the beginning and 110.9MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-21 23:59:03,813 INFO L158 Benchmark]: RCFGBuilder took 23385.67ms. Allocated memory was 248.5MB in the beginning and 483.4MB in the end (delta: 234.9MB). Free memory was 110.9MB in the beginning and 341.1MB in the end (delta: -230.2MB). Peak memory consumption was 187.2MB. Max. memory is 8.0GB. [2023-12-21 23:59:03,814 INFO L158 Benchmark]: TraceAbstraction took 831321.34ms. Allocated memory was 483.4MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 340.0MB in the beginning and 1.2GB in the end (delta: -849.8MB). Peak memory consumption was 707.6MB. Max. memory is 8.0GB. [2023-12-21 23:59:03,814 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1238.24ms. Allocated memory is still 248.5MB. Free memory was 185.5MB in the beginning and 184.9MB in the end (delta: 603.1kB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 136.46ms. Allocated memory is still 248.5MB. Free memory was 184.9MB in the beginning and 149.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 235.84ms. Allocated memory is still 248.5MB. Free memory was 149.2MB in the beginning and 110.9MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * RCFGBuilder took 23385.67ms. Allocated memory was 248.5MB in the beginning and 483.4MB in the end (delta: 234.9MB). Free memory was 110.9MB in the beginning and 341.1MB in the end (delta: -230.2MB). Peak memory consumption was 187.2MB. Max. memory is 8.0GB. * TraceAbstraction took 831321.34ms. Allocated memory was 483.4MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 340.0MB in the beginning and 1.2GB in the end (delta: -849.8MB). Peak memory consumption was 707.6MB. 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: 358]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 358). Cancelled while NwaCegarLoop was constructing difference of abstraction (34550states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24900 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 295]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 295). Cancelled while NwaCegarLoop was constructing difference of abstraction (34550states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24900 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 809 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 831.3s, OverallIterations: 46, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 744.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366165 SdHoareTripleChecker+Valid, 444.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 366165 mSDsluCounter, 413563 SdHoareTripleChecker+Invalid, 382.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350697 mSDsCounter, 8122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64651 IncrementalHoareTripleChecker+Invalid, 72773 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8122 mSolverCounterUnsat, 62866 mSDtfsCounter, 64651 mSolverCounterSat, 1.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9362 GetRequests, 7098 SyntacticMatches, 1 SemanticMatches, 2263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134011 ImplicationChecksByTransitivity, 307.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34550occurred in iteration=44, InterpolantAutomatonStates: 1819, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.0s AutomataMinimizationTime, 45 MinimizatonAttempts, 23313 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 63.1s InterpolantComputationTime, 4744 NumberOfCodeBlocks, 4468 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 7746 ConstructedInterpolants, 1449 QuantifiedInterpolants, 98226 SizeOfPredicates, 215 NumberOfNonLiveVariables, 9231 ConjunctsInSsa, 471 ConjunctsInUnsatCore, 71 InterpolantComputations, 22 PerfectInterpolantSequences, 4779/8794 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