/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:43:59,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:43:59,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:43:59,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:43:59,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:43:59,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:43:59,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:43:59,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:43:59,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:43:59,863 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:43:59,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:43:59,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:43:59,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:43:59,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:43:59,866 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:43:59,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:43:59,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:43:59,866 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:43:59,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:43:59,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:43:59,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:43:59,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:43:59,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:43:59,868 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:43:59,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:43:59,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:43:59,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:43:59,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:43:59,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:43:59,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:43:59,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:43:59,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:43:59,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:43:59,871 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:43:59,871 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:44:00,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:44:00,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:44:00,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:44:00,097 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:44:00,097 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:44:00,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-25 09:44:01,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:44:01,303 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:44:01,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-25 09:44:01,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a1de51f0/0ab8d8748df04b059c9c15fb154ede00/FLAG7614cbf20 [2023-12-25 09:44:01,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a1de51f0/0ab8d8748df04b059c9c15fb154ede00 [2023-12-25 09:44:01,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:44:01,331 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:44:01,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:44:01,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:44:01,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:44:01,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8d0c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01, skipping insertion in model container [2023-12-25 09:44:01,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:44:01,539 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2023-12-25 09:44:01,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:44:01,631 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:44:01,678 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2023-12-25 09:44:01,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:44:01,724 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:44:01,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01 WrapperNode [2023-12-25 09:44:01,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:44:01,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:44:01,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:44:01,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:44:01,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,768 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 855 [2023-12-25 09:44:01,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:44:01,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:44:01,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:44:01,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:44:01,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,787 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 09:44:01,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:44:01,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:44:01,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:44:01,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:44:01,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (1/1) ... [2023-12-25 09:44:01,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:44:01,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:44:01,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 09:44:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:44:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:44:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:44:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:44:01,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 09:44:02,030 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:44:02,032 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:44:02,621 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:44:02,660 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:44:02,661 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:44:02,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:44:02 BoogieIcfgContainer [2023-12-25 09:44:02,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:44:02,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:44:02,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:44:02,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:44:02,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:44:01" (1/3) ... [2023-12-25 09:44:02,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c53d041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:44:02, skipping insertion in model container [2023-12-25 09:44:02,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:44:01" (2/3) ... [2023-12-25 09:44:02,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c53d041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:44:02, skipping insertion in model container [2023-12-25 09:44:02,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:44:02" (3/3) ... [2023-12-25 09:44:02,670 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-25 09:44:02,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:44:02,682 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 09:44:02,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:44:02,729 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;@4ae180be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:44:02,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 09:44:02,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 09:44:02,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:02,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:02,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:02,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash -474104543, now seen corresponding path program 1 times [2023-12-25 09:44:02,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:02,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201337620] [2023-12-25 09:44:02,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:02,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:02,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:02,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:02,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 09:44:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:02,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:44:02,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:03,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:03,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:03,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201337620] [2023-12-25 09:44:03,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201337620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:03,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:03,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:44:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464982430] [2023-12-25 09:44:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:03,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:44:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:44:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:44:03,211 INFO L87 Difference]: Start difference. First operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:03,546 INFO L93 Difference]: Finished difference Result 839 states and 1388 transitions. [2023-12-25 09:44:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:44:03,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-25 09:44:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:03,562 INFO L225 Difference]: With dead ends: 839 [2023-12-25 09:44:03,562 INFO L226 Difference]: Without dead ends: 693 [2023-12-25 09:44:03,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:44:03,566 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 1116 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:03,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 2612 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:44:03,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-25 09:44:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 685. [2023-12-25 09:44:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 1.5160818713450293) internal successors, (1037), 684 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1037 transitions. [2023-12-25 09:44:03,639 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1037 transitions. Word has length 80 [2023-12-25 09:44:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:03,639 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 1037 transitions. [2023-12-25 09:44:03,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:03,640 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1037 transitions. [2023-12-25 09:44:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:03,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:03,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:03,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:03,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:03,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:03,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:03,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2091173516, now seen corresponding path program 1 times [2023-12-25 09:44:03,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:03,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578909276] [2023-12-25 09:44:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:03,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:03,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:03,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:03,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 09:44:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:03,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:03,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:04,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:04,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:04,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:04,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578909276] [2023-12-25 09:44:04,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578909276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:04,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:04,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:04,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968800361] [2023-12-25 09:44:04,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:04,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:04,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:04,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:04,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:04,342 INFO L87 Difference]: Start difference. First operand 685 states and 1037 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:04,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:04,666 INFO L93 Difference]: Finished difference Result 1813 states and 2798 transitions. [2023-12-25 09:44:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:04,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-25 09:44:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:04,671 INFO L225 Difference]: With dead ends: 1813 [2023-12-25 09:44:04,671 INFO L226 Difference]: Without dead ends: 1170 [2023-12-25 09:44:04,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:04,674 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1197 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:04,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 288 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:44:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-12-25 09:44:04,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1168. [2023-12-25 09:44:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5381319622964866) internal successors, (1795), 1167 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1795 transitions. [2023-12-25 09:44:04,704 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1795 transitions. Word has length 81 [2023-12-25 09:44:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:04,704 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 1795 transitions. [2023-12-25 09:44:04,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1795 transitions. [2023-12-25 09:44:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:04,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:04,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:04,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:04,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:04,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:04,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:04,912 INFO L85 PathProgramCache]: Analyzing trace with hash 421169411, now seen corresponding path program 1 times [2023-12-25 09:44:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:04,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285507153] [2023-12-25 09:44:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:04,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:04,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:04,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 09:44:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:05,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:05,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:05,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:05,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:05,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285507153] [2023-12-25 09:44:05,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285507153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:05,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:05,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:05,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314724857] [2023-12-25 09:44:05,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:05,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:05,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:05,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:05,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:05,260 INFO L87 Difference]: Start difference. First operand 1168 states and 1795 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:05,529 INFO L93 Difference]: Finished difference Result 3172 states and 4935 transitions. [2023-12-25 09:44:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:05,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-25 09:44:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:05,535 INFO L225 Difference]: With dead ends: 3172 [2023-12-25 09:44:05,535 INFO L226 Difference]: Without dead ends: 2062 [2023-12-25 09:44:05,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:05,537 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1157 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:05,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 292 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:44:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2023-12-25 09:44:05,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 2060. [2023-12-25 09:44:05,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 2059 states have (on average 1.547838756677999) internal successors, (3187), 2059 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 3187 transitions. [2023-12-25 09:44:05,568 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 3187 transitions. Word has length 81 [2023-12-25 09:44:05,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:05,569 INFO L495 AbstractCegarLoop]: Abstraction has 2060 states and 3187 transitions. [2023-12-25 09:44:05,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 3187 transitions. [2023-12-25 09:44:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:05,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:05,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:05,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:05,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:05,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:05,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:05,778 INFO L85 PathProgramCache]: Analyzing trace with hash 442878674, now seen corresponding path program 1 times [2023-12-25 09:44:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:05,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462077154] [2023-12-25 09:44:05,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:05,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:05,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:05,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:05,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 09:44:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:05,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:05,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:06,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:06,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:06,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462077154] [2023-12-25 09:44:06,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462077154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:06,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:06,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:06,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795817946] [2023-12-25 09:44:06,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:06,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:06,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:06,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:06,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:06,183 INFO L87 Difference]: Start difference. First operand 2060 states and 3187 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:06,449 INFO L93 Difference]: Finished difference Result 5727 states and 8926 transitions. [2023-12-25 09:44:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:06,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-25 09:44:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:06,461 INFO L225 Difference]: With dead ends: 5727 [2023-12-25 09:44:06,461 INFO L226 Difference]: Without dead ends: 3748 [2023-12-25 09:44:06,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:06,466 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1119 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:06,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 294 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:44:06,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-12-25 09:44:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3746. [2023-12-25 09:44:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3745 states have (on average 1.5495327102803738) internal successors, (5803), 3745 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5803 transitions. [2023-12-25 09:44:06,561 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5803 transitions. Word has length 81 [2023-12-25 09:44:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:06,561 INFO L495 AbstractCegarLoop]: Abstraction has 3746 states and 5803 transitions. [2023-12-25 09:44:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5803 transitions. [2023-12-25 09:44:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:06,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:06,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:06,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:06,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:06,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:06,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:06,767 INFO L85 PathProgramCache]: Analyzing trace with hash -840466719, now seen corresponding path program 1 times [2023-12-25 09:44:06,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:06,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741638173] [2023-12-25 09:44:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:06,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:06,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:06,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:06,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 09:44:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:06,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:06,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:07,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:07,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:07,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741638173] [2023-12-25 09:44:07,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741638173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:07,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:07,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:07,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26768807] [2023-12-25 09:44:07,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:07,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:07,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:07,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:07,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:07,112 INFO L87 Difference]: Start difference. First operand 3746 states and 5803 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:07,411 INFO L93 Difference]: Finished difference Result 10607 states and 16503 transitions. [2023-12-25 09:44:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:07,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-25 09:44:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:07,432 INFO L225 Difference]: With dead ends: 10607 [2023-12-25 09:44:07,433 INFO L226 Difference]: Without dead ends: 6972 [2023-12-25 09:44:07,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:07,442 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1081 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:07,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 296 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:44:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6972 states. [2023-12-25 09:44:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6972 to 6970. [2023-12-25 09:44:07,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6970 states, 6969 states have (on average 1.547137322427895) internal successors, (10782), 6969 states have internal predecessors, (10782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:07,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6970 states to 6970 states and 10782 transitions. [2023-12-25 09:44:07,592 INFO L78 Accepts]: Start accepts. Automaton has 6970 states and 10782 transitions. Word has length 81 [2023-12-25 09:44:07,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:07,592 INFO L495 AbstractCegarLoop]: Abstraction has 6970 states and 10782 transitions. [2023-12-25 09:44:07,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:07,593 INFO L276 IsEmpty]: Start isEmpty. Operand 6970 states and 10782 transitions. [2023-12-25 09:44:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 09:44:07,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:07,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:07,611 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 (6)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:07,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:07,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:07,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash 104473904, now seen corresponding path program 1 times [2023-12-25 09:44:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:07,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280987163] [2023-12-25 09:44:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:07,810 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 [2023-12-25 09:44:07,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:07,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:07,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 09:44:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:07,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:44:07,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:08,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:08,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:08,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280987163] [2023-12-25 09:44:08,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280987163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:08,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:08,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:08,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653430116] [2023-12-25 09:44:08,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:08,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:44:08,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:08,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:44:08,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:08,164 INFO L87 Difference]: Start difference. First operand 6970 states and 10782 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:08,450 INFO L93 Difference]: Finished difference Result 20197 states and 31355 transitions. [2023-12-25 09:44:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:08,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-25 09:44:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:08,496 INFO L225 Difference]: With dead ends: 20197 [2023-12-25 09:44:08,496 INFO L226 Difference]: Without dead ends: 13372 [2023-12-25 09:44:08,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:08,509 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1067 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:08,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 305 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:44:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13372 states. [2023-12-25 09:44:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13372 to 13370. [2023-12-25 09:44:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13370 states, 13369 states have (on average 1.5457401451118258) internal successors, (20665), 13369 states have internal predecessors, (20665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13370 states to 13370 states and 20665 transitions. [2023-12-25 09:44:08,777 INFO L78 Accepts]: Start accepts. Automaton has 13370 states and 20665 transitions. Word has length 81 [2023-12-25 09:44:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:08,777 INFO L495 AbstractCegarLoop]: Abstraction has 13370 states and 20665 transitions. [2023-12-25 09:44:08,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 13370 states and 20665 transitions. [2023-12-25 09:44:08,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:44:08,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:08,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:08,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:08,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:08,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:08,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash -834399403, now seen corresponding path program 1 times [2023-12-25 09:44:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:08,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827856676] [2023-12-25 09:44:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:08,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:08,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:08,986 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:09,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 09:44:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:09,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:44:09,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:09,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:09,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:09,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827856676] [2023-12-25 09:44:09,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827856676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:09,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:09,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:44:09,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101008442] [2023-12-25 09:44:09,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:09,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:44:09,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:09,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:44:09,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:44:09,568 INFO L87 Difference]: Start difference. First operand 13370 states and 20665 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:11,282 INFO L93 Difference]: Finished difference Result 36148 states and 55951 transitions. [2023-12-25 09:44:11,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:44:11,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-25 09:44:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:11,315 INFO L225 Difference]: With dead ends: 36148 [2023-12-25 09:44:11,315 INFO L226 Difference]: Without dead ends: 23174 [2023-12-25 09:44:11,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:44:11,330 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 1709 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:11,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 1365 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:44:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23174 states. [2023-12-25 09:44:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23174 to 13456. [2023-12-25 09:44:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13456 states, 13455 states have (on average 1.5432924563359347) internal successors, (20765), 13455 states have internal predecessors, (20765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13456 states to 13456 states and 20765 transitions. [2023-12-25 09:44:11,535 INFO L78 Accepts]: Start accepts. Automaton has 13456 states and 20765 transitions. Word has length 82 [2023-12-25 09:44:11,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:11,536 INFO L495 AbstractCegarLoop]: Abstraction has 13456 states and 20765 transitions. [2023-12-25 09:44:11,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:11,536 INFO L276 IsEmpty]: Start isEmpty. Operand 13456 states and 20765 transitions. [2023-12-25 09:44:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:44:11,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:11,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:11,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-25 09:44:11,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:11,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:11,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash 393547573, now seen corresponding path program 1 times [2023-12-25 09:44:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944152597] [2023-12-25 09:44:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:11,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:11,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:11,743 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:11,744 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 (9)] Waiting until timeout for monitored process [2023-12-25 09:44:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:11,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:44:11,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:12,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:12,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944152597] [2023-12-25 09:44:12,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944152597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:12,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:12,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:44:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552631752] [2023-12-25 09:44:12,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:12,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:44:12,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:12,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:44:12,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:44:12,318 INFO L87 Difference]: Start difference. First operand 13456 states and 20765 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:13,895 INFO L93 Difference]: Finished difference Result 32858 states and 50784 transitions. [2023-12-25 09:44:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:44:13,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-25 09:44:13,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:13,930 INFO L225 Difference]: With dead ends: 32858 [2023-12-25 09:44:13,930 INFO L226 Difference]: Without dead ends: 23320 [2023-12-25 09:44:13,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:44:13,944 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 2022 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:13,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 1387 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:44:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23320 states. [2023-12-25 09:44:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23320 to 13680. [2023-12-25 09:44:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13680 states, 13679 states have (on average 1.539147598508663) internal successors, (21054), 13679 states have internal predecessors, (21054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13680 states to 13680 states and 21054 transitions. [2023-12-25 09:44:14,158 INFO L78 Accepts]: Start accepts. Automaton has 13680 states and 21054 transitions. Word has length 82 [2023-12-25 09:44:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:14,158 INFO L495 AbstractCegarLoop]: Abstraction has 13680 states and 21054 transitions. [2023-12-25 09:44:14,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 13680 states and 21054 transitions. [2023-12-25 09:44:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:44:14,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:14,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:14,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 09:44:14,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:14,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:14,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:14,365 INFO L85 PathProgramCache]: Analyzing trace with hash -751217899, now seen corresponding path program 1 times [2023-12-25 09:44:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:14,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764414658] [2023-12-25 09:44:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:14,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:14,366 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:14,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 09:44:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:14,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:44:14,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:14,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:14,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:14,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764414658] [2023-12-25 09:44:14,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764414658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:14,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:14,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:44:14,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35367250] [2023-12-25 09:44:14,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:14,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:44:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:44:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:44:14,907 INFO L87 Difference]: Start difference. First operand 13680 states and 21054 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:16,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:16,387 INFO L93 Difference]: Finished difference Result 28095 states and 43300 transitions. [2023-12-25 09:44:16,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:44:16,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-25 09:44:16,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:16,414 INFO L225 Difference]: With dead ends: 28095 [2023-12-25 09:44:16,414 INFO L226 Difference]: Without dead ends: 21097 [2023-12-25 09:44:16,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-25 09:44:16,428 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1703 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:16,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 1362 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:44:16,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21097 states. [2023-12-25 09:44:16,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21097 to 14035. [2023-12-25 09:44:16,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14035 states, 14034 states have (on average 1.5337038620493089) internal successors, (21524), 14034 states have internal predecessors, (21524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14035 states to 14035 states and 21524 transitions. [2023-12-25 09:44:16,634 INFO L78 Accepts]: Start accepts. Automaton has 14035 states and 21524 transitions. Word has length 82 [2023-12-25 09:44:16,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:16,634 INFO L495 AbstractCegarLoop]: Abstraction has 14035 states and 21524 transitions. [2023-12-25 09:44:16,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 14035 states and 21524 transitions. [2023-12-25 09:44:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:44:16,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:16,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:16,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:16,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:16,840 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:16,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:16,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1453269259, now seen corresponding path program 1 times [2023-12-25 09:44:16,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:16,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157539061] [2023-12-25 09:44:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:16,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:16,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:16,842 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:16,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 09:44:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:16,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:44:16,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:17,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:17,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:17,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157539061] [2023-12-25 09:44:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157539061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:17,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:17,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:44:17,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250654052] [2023-12-25 09:44:17,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:17,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:44:17,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:17,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:44:17,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:44:17,382 INFO L87 Difference]: Start difference. First operand 14035 states and 21524 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:19,129 INFO L93 Difference]: Finished difference Result 25365 states and 38862 transitions. [2023-12-25 09:44:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:44:19,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-25 09:44:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:19,159 INFO L225 Difference]: With dead ends: 25365 [2023-12-25 09:44:19,159 INFO L226 Difference]: Without dead ends: 21043 [2023-12-25 09:44:19,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-25 09:44:19,170 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1657 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:19,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1603 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:44:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21043 states. [2023-12-25 09:44:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21043 to 14489. [2023-12-25 09:44:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14489 states, 14488 states have (on average 1.5289895085588072) internal successors, (22152), 14488 states have internal predecessors, (22152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:19,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14489 states to 14489 states and 22152 transitions. [2023-12-25 09:44:19,348 INFO L78 Accepts]: Start accepts. Automaton has 14489 states and 22152 transitions. Word has length 82 [2023-12-25 09:44:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:19,348 INFO L495 AbstractCegarLoop]: Abstraction has 14489 states and 22152 transitions. [2023-12-25 09:44:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 14489 states and 22152 transitions. [2023-12-25 09:44:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:44:19,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:19,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:19,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:19,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:19,561 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:19,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash -4476203, now seen corresponding path program 1 times [2023-12-25 09:44:19,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:19,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402313054] [2023-12-25 09:44:19,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:19,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:19,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:19,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:19,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 09:44:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:19,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:44:19,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:20,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:20,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:20,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:20,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402313054] [2023-12-25 09:44:20,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402313054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:20,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:20,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:44:20,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228737526] [2023-12-25 09:44:20,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:20,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:44:20,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:20,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:44:20,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:44:20,008 INFO L87 Difference]: Start difference. First operand 14489 states and 22152 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:21,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:21,171 INFO L93 Difference]: Finished difference Result 17731 states and 27071 transitions. [2023-12-25 09:44:21,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:44:21,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-25 09:44:21,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:21,208 INFO L225 Difference]: With dead ends: 17731 [2023-12-25 09:44:21,208 INFO L226 Difference]: Without dead ends: 16001 [2023-12-25 09:44:21,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:44:21,216 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1510 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:21,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1266 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:44:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16001 states. [2023-12-25 09:44:21,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16001 to 14489. [2023-12-25 09:44:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14489 states, 14488 states have (on average 1.5278851463279957) internal successors, (22136), 14488 states have internal predecessors, (22136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14489 states to 14489 states and 22136 transitions. [2023-12-25 09:44:21,427 INFO L78 Accepts]: Start accepts. Automaton has 14489 states and 22136 transitions. Word has length 82 [2023-12-25 09:44:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:21,427 INFO L495 AbstractCegarLoop]: Abstraction has 14489 states and 22136 transitions. [2023-12-25 09:44:21,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 14489 states and 22136 transitions. [2023-12-25 09:44:21,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:44:21,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:21,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:21,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:21,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:21,635 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:21,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:21,635 INFO L85 PathProgramCache]: Analyzing trace with hash -856713793, now seen corresponding path program 1 times [2023-12-25 09:44:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:21,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388918392] [2023-12-25 09:44:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:21,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:21,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:21,637 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:21,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 09:44:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:21,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:44:21,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:22,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:22,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:22,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388918392] [2023-12-25 09:44:22,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388918392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:22,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:22,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:44:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325246705] [2023-12-25 09:44:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:22,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:44:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:22,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:44:22,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:44:22,321 INFO L87 Difference]: Start difference. First operand 14489 states and 22136 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:22,701 INFO L93 Difference]: Finished difference Result 68798 states and 106104 transitions. [2023-12-25 09:44:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:44:22,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-25 09:44:22,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:22,774 INFO L225 Difference]: With dead ends: 68798 [2023-12-25 09:44:22,774 INFO L226 Difference]: Without dead ends: 55996 [2023-12-25 09:44:22,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:44:22,801 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1269 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:22,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1304 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:44:22,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55996 states. [2023-12-25 09:44:23,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55996 to 28052. [2023-12-25 09:44:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28052 states, 28051 states have (on average 1.5236533456917758) internal successors, (42740), 28051 states have internal predecessors, (42740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28052 states to 28052 states and 42740 transitions. [2023-12-25 09:44:23,344 INFO L78 Accepts]: Start accepts. Automaton has 28052 states and 42740 transitions. Word has length 83 [2023-12-25 09:44:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:23,344 INFO L495 AbstractCegarLoop]: Abstraction has 28052 states and 42740 transitions. [2023-12-25 09:44:23,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 28052 states and 42740 transitions. [2023-12-25 09:44:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:44:23,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:23,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:23,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:23,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:23,556 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:23,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1067289351, now seen corresponding path program 1 times [2023-12-25 09:44:23,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:23,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751152399] [2023-12-25 09:44:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:23,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:23,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:23,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:23,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 09:44:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:23,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:44:23,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:23,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:23,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:23,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751152399] [2023-12-25 09:44:23,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751152399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:23,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:23,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:23,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026893065] [2023-12-25 09:44:23,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:23,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:44:23,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:23,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:44:23,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:44:23,742 INFO L87 Difference]: Start difference. First operand 28052 states and 42740 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:23,922 INFO L93 Difference]: Finished difference Result 54294 states and 82773 transitions. [2023-12-25 09:44:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:44:23,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-25 09:44:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:24,010 INFO L225 Difference]: With dead ends: 54294 [2023-12-25 09:44:24,010 INFO L226 Difference]: Without dead ends: 54292 [2023-12-25 09:44:24,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:44:24,034 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 302 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:24,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 910 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54292 states. [2023-12-25 09:44:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54292 to 28692. [2023-12-25 09:44:24,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28692 states, 28691 states have (on average 1.511972395524729) internal successors, (43380), 28691 states have internal predecessors, (43380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28692 states to 28692 states and 43380 transitions. [2023-12-25 09:44:24,547 INFO L78 Accepts]: Start accepts. Automaton has 28692 states and 43380 transitions. Word has length 84 [2023-12-25 09:44:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:24,547 INFO L495 AbstractCegarLoop]: Abstraction has 28692 states and 43380 transitions. [2023-12-25 09:44:24,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 28692 states and 43380 transitions. [2023-12-25 09:44:24,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 09:44:24,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:24,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:24,558 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 (14)] Ended with exit code 0 [2023-12-25 09:44:24,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:24,758 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:24,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:24,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1552222344, now seen corresponding path program 1 times [2023-12-25 09:44:24,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:24,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448744667] [2023-12-25 09:44:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:24,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:24,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:24,763 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:24,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 09:44:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:24,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:44:24,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:25,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:25,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:25,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448744667] [2023-12-25 09:44:25,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448744667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:25,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:25,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:44:25,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212434844] [2023-12-25 09:44:25,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:25,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:44:25,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:25,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:44:25,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:44:25,047 INFO L87 Difference]: Start difference. First operand 28692 states and 43380 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:25,263 INFO L93 Difference]: Finished difference Result 77912 states and 118054 transitions. [2023-12-25 09:44:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:44:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 09:44:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:25,332 INFO L225 Difference]: With dead ends: 77912 [2023-12-25 09:44:25,332 INFO L226 Difference]: Without dead ends: 51670 [2023-12-25 09:44:25,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:44:25,358 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 203 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:25,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 914 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51670 states. [2023-12-25 09:44:25,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51670 to 51668. [2023-12-25 09:44:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51668 states, 51667 states have (on average 1.5041709408326398) internal successors, (77716), 51667 states have internal predecessors, (77716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51668 states to 51668 states and 77716 transitions. [2023-12-25 09:44:26,037 INFO L78 Accepts]: Start accepts. Automaton has 51668 states and 77716 transitions. Word has length 85 [2023-12-25 09:44:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:26,038 INFO L495 AbstractCegarLoop]: Abstraction has 51668 states and 77716 transitions. [2023-12-25 09:44:26,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 51668 states and 77716 transitions. [2023-12-25 09:44:26,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 09:44:26,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:26,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:26,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:26,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:26,248 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:26,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash -887764282, now seen corresponding path program 1 times [2023-12-25 09:44:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:26,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617150153] [2023-12-25 09:44:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:26,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:26,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:26,250 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:26,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 09:44:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:26,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:44:26,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:26,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:26,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:26,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617150153] [2023-12-25 09:44:26,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617150153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:26,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:26,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:44:26,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098890874] [2023-12-25 09:44:26,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:26,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:44:26,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:26,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:44:26,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:26,360 INFO L87 Difference]: Start difference. First operand 51668 states and 77716 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:26,761 INFO L93 Difference]: Finished difference Result 110096 states and 165750 transitions. [2023-12-25 09:44:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:44:26,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 09:44:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:26,846 INFO L225 Difference]: With dead ends: 110096 [2023-12-25 09:44:26,847 INFO L226 Difference]: Without dead ends: 67674 [2023-12-25 09:44:26,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:27,012 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 203 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:27,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 580 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:27,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67674 states. [2023-12-25 09:44:27,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67674 to 67200. [2023-12-25 09:44:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67200 states, 67199 states have (on average 1.4866143841426211) internal successors, (99899), 67199 states have internal predecessors, (99899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67200 states to 67200 states and 99899 transitions. [2023-12-25 09:44:28,079 INFO L78 Accepts]: Start accepts. Automaton has 67200 states and 99899 transitions. Word has length 85 [2023-12-25 09:44:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:28,089 INFO L495 AbstractCegarLoop]: Abstraction has 67200 states and 99899 transitions. [2023-12-25 09:44:28,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 67200 states and 99899 transitions. [2023-12-25 09:44:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 09:44:28,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:28,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:28,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:28,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:28,301 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:28,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2146135911, now seen corresponding path program 1 times [2023-12-25 09:44:28,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:28,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033170233] [2023-12-25 09:44:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:28,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:28,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:28,303 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:28,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 09:44:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:28,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:44:28,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:28,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:28,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:28,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033170233] [2023-12-25 09:44:28,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033170233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:28,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:28,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:44:28,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887112100] [2023-12-25 09:44:28,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:28,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:44:28,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:28,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:44:28,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:28,421 INFO L87 Difference]: Start difference. First operand 67200 states and 99899 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:28,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:28,928 INFO L93 Difference]: Finished difference Result 126706 states and 188265 transitions. [2023-12-25 09:44:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:44:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 09:44:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:29,052 INFO L225 Difference]: With dead ends: 126706 [2023-12-25 09:44:29,052 INFO L226 Difference]: Without dead ends: 80958 [2023-12-25 09:44:29,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:29,084 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 191 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:29,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 578 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:29,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80958 states. [2023-12-25 09:44:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80958 to 80364. [2023-12-25 09:44:29,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80364 states, 80363 states have (on average 1.464940333237933) internal successors, (117727), 80363 states have internal predecessors, (117727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80364 states to 80364 states and 117727 transitions. [2023-12-25 09:44:30,206 INFO L78 Accepts]: Start accepts. Automaton has 80364 states and 117727 transitions. Word has length 85 [2023-12-25 09:44:30,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:30,206 INFO L495 AbstractCegarLoop]: Abstraction has 80364 states and 117727 transitions. [2023-12-25 09:44:30,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 80364 states and 117727 transitions. [2023-12-25 09:44:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 09:44:30,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:30,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:30,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:30,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:30,414 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:30,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:30,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1237010470, now seen corresponding path program 1 times [2023-12-25 09:44:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:30,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348746529] [2023-12-25 09:44:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:30,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:30,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:30,416 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:30,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 09:44:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:30,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:44:30,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:30,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:30,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348746529] [2023-12-25 09:44:30,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348746529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:30,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:30,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:44:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716221561] [2023-12-25 09:44:30,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:30,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:44:30,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:44:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:30,532 INFO L87 Difference]: Start difference. First operand 80364 states and 117727 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:31,091 INFO L93 Difference]: Finished difference Result 134771 states and 197060 transitions. [2023-12-25 09:44:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:44:31,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 09:44:31,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:31,210 INFO L225 Difference]: With dead ends: 134771 [2023-12-25 09:44:31,210 INFO L226 Difference]: Without dead ends: 91115 [2023-12-25 09:44:31,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:31,242 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:31,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 592 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91115 states. [2023-12-25 09:44:32,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91115 to 90289. [2023-12-25 09:44:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90289 states, 90288 states have (on average 1.4401581605528975) internal successors, (130029), 90288 states have internal predecessors, (130029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:32,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90289 states to 90289 states and 130029 transitions. [2023-12-25 09:44:32,259 INFO L78 Accepts]: Start accepts. Automaton has 90289 states and 130029 transitions. Word has length 85 [2023-12-25 09:44:32,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:32,259 INFO L495 AbstractCegarLoop]: Abstraction has 90289 states and 130029 transitions. [2023-12-25 09:44:32,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:32,259 INFO L276 IsEmpty]: Start isEmpty. Operand 90289 states and 130029 transitions. [2023-12-25 09:44:32,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 09:44:32,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:32,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:32,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:32,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:32,470 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:32,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:32,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1334025563, now seen corresponding path program 1 times [2023-12-25 09:44:32,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:32,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222635384] [2023-12-25 09:44:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:32,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:32,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:32,472 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:32,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 09:44:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:32,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:44:32,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:32,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:32,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222635384] [2023-12-25 09:44:32,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222635384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:32,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:32,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:44:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407877476] [2023-12-25 09:44:32,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:32,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:44:32,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:32,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:44:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:32,810 INFO L87 Difference]: Start difference. First operand 90289 states and 130029 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:33,161 INFO L93 Difference]: Finished difference Result 124835 states and 179121 transitions. [2023-12-25 09:44:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:44:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 09:44:33,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:33,284 INFO L225 Difference]: With dead ends: 124835 [2023-12-25 09:44:33,284 INFO L226 Difference]: Without dead ends: 92825 [2023-12-25 09:44:33,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:33,332 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 171 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:33,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 567 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:33,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92825 states. [2023-12-25 09:44:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92825 to 83327. [2023-12-25 09:44:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83327 states, 83326 states have (on average 1.4167846770515806) internal successors, (118055), 83326 states have internal predecessors, (118055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83327 states to 83327 states and 118055 transitions. [2023-12-25 09:44:34,670 INFO L78 Accepts]: Start accepts. Automaton has 83327 states and 118055 transitions. Word has length 85 [2023-12-25 09:44:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:34,671 INFO L495 AbstractCegarLoop]: Abstraction has 83327 states and 118055 transitions. [2023-12-25 09:44:34,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 83327 states and 118055 transitions. [2023-12-25 09:44:34,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 09:44:34,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:34,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:34,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:34,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:34,878 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:34,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:34,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1328611559, now seen corresponding path program 1 times [2023-12-25 09:44:34,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:34,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731140008] [2023-12-25 09:44:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:34,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:34,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:34,880 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:34,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 09:44:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:34,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:44:34,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:34,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:34,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:34,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731140008] [2023-12-25 09:44:34,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731140008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:34,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:34,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:44:34,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377289762] [2023-12-25 09:44:34,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:34,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:44:34,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:34,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:44:34,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:34,991 INFO L87 Difference]: Start difference. First operand 83327 states and 118055 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:35,739 INFO L93 Difference]: Finished difference Result 215066 states and 304606 transitions. [2023-12-25 09:44:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:44:35,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 09:44:35,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:35,919 INFO L225 Difference]: With dead ends: 215066 [2023-12-25 09:44:35,920 INFO L226 Difference]: Without dead ends: 139831 [2023-12-25 09:44:35,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:44:35,968 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 205 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:35,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 644 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:44:36,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139831 states. [2023-12-25 09:44:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139831 to 139551. [2023-12-25 09:44:37,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139551 states, 139550 states have (on average 1.4025510569688284) internal successors, (195726), 139550 states have internal predecessors, (195726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139551 states to 139551 states and 195726 transitions. [2023-12-25 09:44:37,998 INFO L78 Accepts]: Start accepts. Automaton has 139551 states and 195726 transitions. Word has length 85 [2023-12-25 09:44:37,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:37,998 INFO L495 AbstractCegarLoop]: Abstraction has 139551 states and 195726 transitions. [2023-12-25 09:44:37,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 139551 states and 195726 transitions. [2023-12-25 09:44:38,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:44:38,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:38,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:38,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:38,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:38,215 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:38,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash 67402477, now seen corresponding path program 1 times [2023-12-25 09:44:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:38,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535260171] [2023-12-25 09:44:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:38,216 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:38,217 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:38,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 09:44:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:38,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:44:38,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:38,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:38,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:38,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535260171] [2023-12-25 09:44:38,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535260171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:38,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:38,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:44:38,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759308970] [2023-12-25 09:44:38,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:38,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:44:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:38,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:44:38,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:38,439 INFO L87 Difference]: Start difference. First operand 139551 states and 195726 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:44:40,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:40,593 INFO L93 Difference]: Finished difference Result 552126 states and 771242 transitions. [2023-12-25 09:44:40,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:44:40,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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 [2023-12-25 09:44:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:41,356 INFO L225 Difference]: With dead ends: 552126 [2023-12-25 09:44:41,356 INFO L226 Difference]: Without dead ends: 414627 [2023-12-25 09:44:41,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:44:41,444 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1532 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:41,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 534 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:44:42,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414627 states. [2023-12-25 09:44:44,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414627 to 138488. [2023-12-25 09:44:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138488 states, 138487 states have (on average 1.3918923797901608) internal successors, (192759), 138487 states have internal predecessors, (192759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138488 states to 138488 states and 192759 transitions. [2023-12-25 09:44:45,026 INFO L78 Accepts]: Start accepts. Automaton has 138488 states and 192759 transitions. Word has length 86 [2023-12-25 09:44:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:45,027 INFO L495 AbstractCegarLoop]: Abstraction has 138488 states and 192759 transitions. [2023-12-25 09:44:45,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:44:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 138488 states and 192759 transitions. [2023-12-25 09:44:45,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:44:45,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:45,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:45,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:45,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:45,235 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:45,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:45,235 INFO L85 PathProgramCache]: Analyzing trace with hash -670891496, now seen corresponding path program 1 times [2023-12-25 09:44:45,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:45,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415330977] [2023-12-25 09:44:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:45,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:45,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:45,237 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:45,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 09:44:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:45,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:44:45,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:45,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:45,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:45,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415330977] [2023-12-25 09:44:45,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415330977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:45,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:45,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:44:45,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018588984] [2023-12-25 09:44:45,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:45,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:44:45,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:45,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:44:45,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:45,740 INFO L87 Difference]: Start difference. First operand 138488 states and 192759 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:44:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:48,195 INFO L93 Difference]: Finished difference Result 685323 states and 950759 transitions. [2023-12-25 09:44:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:44:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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 [2023-12-25 09:44:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:49,152 INFO L225 Difference]: With dead ends: 685323 [2023-12-25 09:44:49,152 INFO L226 Difference]: Without dead ends: 549313 [2023-12-25 09:44:49,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:44:49,250 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1860 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:49,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 770 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:44:49,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549313 states. [2023-12-25 09:44:53,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549313 to 137757. [2023-12-25 09:44:53,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137757 states, 137756 states have (on average 1.378313830250588) internal successors, (189871), 137756 states have internal predecessors, (189871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:44:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137757 states to 137757 states and 189871 transitions. [2023-12-25 09:44:54,184 INFO L78 Accepts]: Start accepts. Automaton has 137757 states and 189871 transitions. Word has length 86 [2023-12-25 09:44:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:44:54,184 INFO L495 AbstractCegarLoop]: Abstraction has 137757 states and 189871 transitions. [2023-12-25 09:44:54,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:44:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 137757 states and 189871 transitions. [2023-12-25 09:44:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:44:54,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:44:54,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:44:54,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 09:44:54,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:54,392 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:44:54,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:44:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -47807753, now seen corresponding path program 1 times [2023-12-25 09:44:54,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:44:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447154924] [2023-12-25 09:44:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:44:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:44:54,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:44:54,394 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:44:54,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 09:44:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:44:54,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:44:54,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:44:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:44:54,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:44:54,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:44:54,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447154924] [2023-12-25 09:44:54,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447154924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:44:54,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:44:54,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:44:54,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6967759] [2023-12-25 09:44:54,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:44:54,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:44:54,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:44:54,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:44:54,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:44:54,608 INFO L87 Difference]: Start difference. First operand 137757 states and 189871 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:44:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:44:57,262 INFO L93 Difference]: Finished difference Result 760286 states and 1043688 transitions. [2023-12-25 09:44:57,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:44:57,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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 [2023-12-25 09:44:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:44:59,224 INFO L225 Difference]: With dead ends: 760286 [2023-12-25 09:44:59,224 INFO L226 Difference]: Without dead ends: 625387 [2023-12-25 09:44:59,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:44:59,347 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1714 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:44:59,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 690 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:44:59,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625387 states. [2023-12-25 09:45:03,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625387 to 137179. [2023-12-25 09:45:03,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137179 states, 137178 states have (on average 1.3653428392307805) internal successors, (187295), 137178 states have internal predecessors, (187295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137179 states to 137179 states and 187295 transitions. [2023-12-25 09:45:04,064 INFO L78 Accepts]: Start accepts. Automaton has 137179 states and 187295 transitions. Word has length 86 [2023-12-25 09:45:04,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:04,064 INFO L495 AbstractCegarLoop]: Abstraction has 137179 states and 187295 transitions. [2023-12-25 09:45:04,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:45:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 137179 states and 187295 transitions. [2023-12-25 09:45:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:45:04,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:04,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:04,078 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 [2023-12-25 09:45:04,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:04,275 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:04,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1653127403, now seen corresponding path program 1 times [2023-12-25 09:45:04,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:04,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499835503] [2023-12-25 09:45:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:04,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:04,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:04,297 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:45:04,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 09:45:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:04,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:45:04,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:04,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:04,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:04,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499835503] [2023-12-25 09:45:04,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499835503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:04,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:04,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:45:04,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206805492] [2023-12-25 09:45:04,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:04,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:45:04,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:04,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:45:04,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:45:04,527 INFO L87 Difference]: Start difference. First operand 137179 states and 187295 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:45:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:07,001 INFO L93 Difference]: Finished difference Result 683960 states and 928219 transitions. [2023-12-25 09:45:07,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:45:07,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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 [2023-12-25 09:45:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:08,347 INFO L225 Difference]: With dead ends: 683960 [2023-12-25 09:45:08,347 INFO L226 Difference]: Without dead ends: 550698 [2023-12-25 09:45:08,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:45:08,446 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1411 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:08,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 659 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:45:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550698 states. [2023-12-25 09:45:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550698 to 137434. [2023-12-25 09:45:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137434 states, 137433 states have (on average 1.3519242103424942) internal successors, (185799), 137433 states have internal predecessors, (185799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137434 states to 137434 states and 185799 transitions. [2023-12-25 09:45:12,384 INFO L78 Accepts]: Start accepts. Automaton has 137434 states and 185799 transitions. Word has length 86 [2023-12-25 09:45:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:12,384 INFO L495 AbstractCegarLoop]: Abstraction has 137434 states and 185799 transitions. [2023-12-25 09:45:12,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:45:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 137434 states and 185799 transitions. [2023-12-25 09:45:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:45:12,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:12,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:12,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 09:45:12,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:12,593 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:12,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:12,593 INFO L85 PathProgramCache]: Analyzing trace with hash 590596061, now seen corresponding path program 1 times [2023-12-25 09:45:12,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:12,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75915280] [2023-12-25 09:45:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:12,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:12,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:12,595 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:45:12,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 09:45:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:12,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:45:12,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:12,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:12,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:12,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75915280] [2023-12-25 09:45:12,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75915280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:12,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:12,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:45:12,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87837495] [2023-12-25 09:45:12,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:12,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:45:12,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:45:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:45:12,847 INFO L87 Difference]: Start difference. First operand 137434 states and 185799 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:45:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:15,021 INFO L93 Difference]: Finished difference Result 549215 states and 739211 transitions. [2023-12-25 09:45:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:45:15,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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 [2023-12-25 09:45:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:15,718 INFO L225 Difference]: With dead ends: 549215 [2023-12-25 09:45:15,719 INFO L226 Difference]: Without dead ends: 417651 [2023-12-25 09:45:16,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:45:16,212 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1621 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:16,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 567 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:45:16,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417651 states. [2023-12-25 09:45:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417651 to 250456. [2023-12-25 09:45:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250456 states, 250455 states have (on average 1.3373899502904714) internal successors, (334956), 250455 states have internal predecessors, (334956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250456 states to 250456 states and 334956 transitions. [2023-12-25 09:45:20,404 INFO L78 Accepts]: Start accepts. Automaton has 250456 states and 334956 transitions. Word has length 86 [2023-12-25 09:45:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:20,404 INFO L495 AbstractCegarLoop]: Abstraction has 250456 states and 334956 transitions. [2023-12-25 09:45:20,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 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) [2023-12-25 09:45:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 250456 states and 334956 transitions. [2023-12-25 09:45:20,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:45:20,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:20,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:20,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 09:45:20,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:20,616 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:20,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1555358028, now seen corresponding path program 1 times [2023-12-25 09:45:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914983283] [2023-12-25 09:45:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:20,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:20,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:20,618 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:45:20,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 09:45:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:20,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:45:20,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:21,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:21,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:21,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914983283] [2023-12-25 09:45:21,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914983283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:21,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:21,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:21,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298735958] [2023-12-25 09:45:21,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:21,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:45:21,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:21,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:45:21,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:21,583 INFO L87 Difference]: Start difference. First operand 250456 states and 334956 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:23,655 INFO L93 Difference]: Finished difference Result 607495 states and 820591 transitions. [2023-12-25 09:45:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:45:23,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:45:23,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:24,475 INFO L225 Difference]: With dead ends: 607495 [2023-12-25 09:45:24,475 INFO L226 Difference]: Without dead ends: 478911 [2023-12-25 09:45:24,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:24,563 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 801 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:24,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1603 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:24,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478911 states. [2023-12-25 09:45:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478911 to 328669. [2023-12-25 09:45:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328669 states, 328668 states have (on average 1.3343100027991772) internal successors, (438545), 328668 states have internal predecessors, (438545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:30,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328669 states to 328669 states and 438545 transitions. [2023-12-25 09:45:30,247 INFO L78 Accepts]: Start accepts. Automaton has 328669 states and 438545 transitions. Word has length 88 [2023-12-25 09:45:30,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:30,247 INFO L495 AbstractCegarLoop]: Abstraction has 328669 states and 438545 transitions. [2023-12-25 09:45:30,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 328669 states and 438545 transitions. [2023-12-25 09:45:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:45:30,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:30,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:30,265 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 (26)] Ended with exit code 0 [2023-12-25 09:45:30,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:30,460 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:30,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:30,460 INFO L85 PathProgramCache]: Analyzing trace with hash -296601183, now seen corresponding path program 1 times [2023-12-25 09:45:30,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:30,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148090047] [2023-12-25 09:45:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:30,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:30,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:30,464 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:45:30,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 09:45:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:30,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:45:30,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:31,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:31,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:31,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148090047] [2023-12-25 09:45:31,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148090047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:31,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:31,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:31,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058009573] [2023-12-25 09:45:31,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:31,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:45:31,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:31,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:45:31,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:31,170 INFO L87 Difference]: Start difference. First operand 328669 states and 438545 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:33,948 INFO L93 Difference]: Finished difference Result 672232 states and 906118 transitions. [2023-12-25 09:45:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:45:33,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:45:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:34,879 INFO L225 Difference]: With dead ends: 672232 [2023-12-25 09:45:34,879 INFO L226 Difference]: Without dead ends: 545763 [2023-12-25 09:45:34,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:34,982 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1162 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:34,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1339 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545763 states. [2023-12-25 09:45:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545763 to 359177. [2023-12-25 09:45:39,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359177 states, 359176 states have (on average 1.333933781767156) internal successors, (479117), 359176 states have internal predecessors, (479117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:40,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359177 states to 359177 states and 479117 transitions. [2023-12-25 09:45:40,850 INFO L78 Accepts]: Start accepts. Automaton has 359177 states and 479117 transitions. Word has length 88 [2023-12-25 09:45:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:40,850 INFO L495 AbstractCegarLoop]: Abstraction has 359177 states and 479117 transitions. [2023-12-25 09:45:40,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 359177 states and 479117 transitions. [2023-12-25 09:45:40,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:45:40,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:40,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:40,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 09:45:41,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:41,064 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:41,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash 747959819, now seen corresponding path program 1 times [2023-12-25 09:45:41,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:41,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273007720] [2023-12-25 09:45:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:41,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:41,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:41,066 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:45:41,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 09:45:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:41,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:45:41,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:42,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:42,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:42,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273007720] [2023-12-25 09:45:42,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273007720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:42,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:42,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:45:42,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444527952] [2023-12-25 09:45:42,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:42,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:45:42,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:42,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:45:42,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:42,074 INFO L87 Difference]: Start difference. First operand 359177 states and 479117 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:44,387 INFO L93 Difference]: Finished difference Result 689393 states and 928221 transitions. [2023-12-25 09:45:44,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:45:44,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:45:44,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:45,509 INFO L225 Difference]: With dead ends: 689393 [2023-12-25 09:45:45,509 INFO L226 Difference]: Without dead ends: 595207 [2023-12-25 09:45:46,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:45:46,092 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 760 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:45:46,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1505 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:45:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595207 states. [2023-12-25 09:45:51,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595207 to 396085. [2023-12-25 09:45:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396085 states, 396084 states have (on average 1.3350854869169166) internal successors, (528806), 396084 states have internal predecessors, (528806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:53,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396085 states to 396085 states and 528806 transitions. [2023-12-25 09:45:53,312 INFO L78 Accepts]: Start accepts. Automaton has 396085 states and 528806 transitions. Word has length 88 [2023-12-25 09:45:53,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:45:53,317 INFO L495 AbstractCegarLoop]: Abstraction has 396085 states and 528806 transitions. [2023-12-25 09:45:53,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand 396085 states and 528806 transitions. [2023-12-25 09:45:53,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:45:53,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:45:53,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:45:53,339 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 [2023-12-25 09:45:53,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:53,534 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:45:53,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:45:53,535 INFO L85 PathProgramCache]: Analyzing trace with hash 815765001, now seen corresponding path program 1 times [2023-12-25 09:45:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:45:53,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681430042] [2023-12-25 09:45:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:45:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:45:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:45:53,536 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:45:53,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 09:45:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:45:54,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:45:54,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:45:54,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:45:54,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:45:54,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:45:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681430042] [2023-12-25 09:45:54,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681430042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:45:54,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:45:54,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:45:54,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479651824] [2023-12-25 09:45:54,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:45:54,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:45:54,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:45:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:45:54,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:45:54,053 INFO L87 Difference]: Start difference. First operand 396085 states and 528806 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:45:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:45:57,991 INFO L93 Difference]: Finished difference Result 1116451 states and 1498018 transitions. [2023-12-25 09:45:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:45:57,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:45:57,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:45:59,478 INFO L225 Difference]: With dead ends: 1116451 [2023-12-25 09:45:59,478 INFO L226 Difference]: Without dead ends: 729097 [2023-12-25 09:46:00,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:46:00,116 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:00,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 616 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:46:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729097 states. [2023-12-25 09:46:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729097 to 700601. [2023-12-25 09:46:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700601 states, 700600 states have (on average 1.3282557807593491) internal successors, (930576), 700600 states have internal predecessors, (930576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700601 states to 700601 states and 930576 transitions. [2023-12-25 09:46:11,142 INFO L78 Accepts]: Start accepts. Automaton has 700601 states and 930576 transitions. Word has length 88 [2023-12-25 09:46:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:11,142 INFO L495 AbstractCegarLoop]: Abstraction has 700601 states and 930576 transitions. [2023-12-25 09:46:11,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 700601 states and 930576 transitions. [2023-12-25 09:46:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:46:11,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:11,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:11,157 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 [2023-12-25 09:46:11,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:46:11,355 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:11,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:11,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1906709060, now seen corresponding path program 1 times [2023-12-25 09:46:11,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:11,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378816389] [2023-12-25 09:46:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:11,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:46:11,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:11,358 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:46:11,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 09:46:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:11,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:46:11,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:12,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:46:12,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:12,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:12,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378816389] [2023-12-25 09:46:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378816389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:12,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:12,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:46:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448170800] [2023-12-25 09:46:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:12,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:46:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:46:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:46:12,089 INFO L87 Difference]: Start difference. First operand 700601 states and 930576 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:17,187 INFO L93 Difference]: Finished difference Result 1248097 states and 1669138 transitions. [2023-12-25 09:46:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:46:17,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:46:17,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:20,027 INFO L225 Difference]: With dead ends: 1248097 [2023-12-25 09:46:20,028 INFO L226 Difference]: Without dead ends: 1139653 [2023-12-25 09:46:20,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:46:20,283 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1033 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:20,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1361 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:46:21,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139653 states. [2023-12-25 09:46:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139653 to 748893. [2023-12-25 09:46:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748893 states, 748892 states have (on average 1.3290955171106114) internal successors, (995349), 748892 states have internal predecessors, (995349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:33,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748893 states to 748893 states and 995349 transitions. [2023-12-25 09:46:33,819 INFO L78 Accepts]: Start accepts. Automaton has 748893 states and 995349 transitions. Word has length 88 [2023-12-25 09:46:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:33,819 INFO L495 AbstractCegarLoop]: Abstraction has 748893 states and 995349 transitions. [2023-12-25 09:46:33,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 748893 states and 995349 transitions. [2023-12-25 09:46:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:46:33,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:33,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:33,836 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 [2023-12-25 09:46:34,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:46:34,029 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:34,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1591950001, now seen corresponding path program 1 times [2023-12-25 09:46:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:34,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430171948] [2023-12-25 09:46:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:34,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:46:34,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:34,031 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:46:34,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 09:46:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:34,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:46:34,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:46:34,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:34,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:34,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430171948] [2023-12-25 09:46:34,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430171948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:34,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:34,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:46:34,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072675071] [2023-12-25 09:46:34,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:34,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:46:34,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:34,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:46:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:46:34,861 INFO L87 Difference]: Start difference. First operand 748893 states and 995349 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:46:39,691 INFO L93 Difference]: Finished difference Result 1247151 states and 1664276 transitions. [2023-12-25 09:46:39,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 09:46:39,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:46:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:46:43,012 INFO L225 Difference]: With dead ends: 1247151 [2023-12-25 09:46:43,012 INFO L226 Difference]: Without dead ends: 1184825 [2023-12-25 09:46:43,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:46:43,230 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1154 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:46:43,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1314 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:46:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184825 states. [2023-12-25 09:46:53,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184825 to 794065. [2023-12-25 09:46:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794065 states, 794064 states have (on average 1.3283979628846037) internal successors, (1054833), 794064 states have internal predecessors, (1054833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:56,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794065 states to 794065 states and 1054833 transitions. [2023-12-25 09:46:56,815 INFO L78 Accepts]: Start accepts. Automaton has 794065 states and 1054833 transitions. Word has length 88 [2023-12-25 09:46:56,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:46:56,818 INFO L495 AbstractCegarLoop]: Abstraction has 794065 states and 1054833 transitions. [2023-12-25 09:46:56,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:46:56,818 INFO L276 IsEmpty]: Start isEmpty. Operand 794065 states and 1054833 transitions. [2023-12-25 09:46:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 09:46:56,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:46:56,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:46:56,836 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 [2023-12-25 09:46:57,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:46:57,036 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:46:57,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:46:57,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1199867936, now seen corresponding path program 1 times [2023-12-25 09:46:57,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:46:57,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873178334] [2023-12-25 09:46:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:46:57,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:46:57,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:46:57,039 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 09:46:57,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 09:46:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:46:57,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:46:57,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:46:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:46:58,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:46:58,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:46:58,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873178334] [2023-12-25 09:46:58,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873178334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:46:58,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:46:58,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-25 09:46:58,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252517002] [2023-12-25 09:46:58,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:46:58,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:46:58,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:46:58,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:46:58,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:46:58,823 INFO L87 Difference]: Start difference. First operand 794065 states and 1054833 transitions. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:47:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:47:14,144 INFO L93 Difference]: Finished difference Result 2904447 states and 3868927 transitions. [2023-12-25 09:47:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 09:47:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-25 09:47:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:47:19,706 INFO L225 Difference]: With dead ends: 2904447 [2023-12-25 09:47:19,706 INFO L226 Difference]: Without dead ends: 2214520 [2023-12-25 09:47:20,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2023-12-25 09:47:20,317 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 1977 mSDsluCounter, 4672 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:47:20,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 5192 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 09:47:22,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214520 states.