/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_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:14:28,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:14:28,098 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:14:28,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:14:28,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:14:28,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:14:28,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:14:28,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:14:28,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:14:28,133 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:14:28,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:14:28,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:14:28,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:14:28,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:14:28,135 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:14:28,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:14:28,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:14:28,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:14:28,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:14:28,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:14:28,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:14:28,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:14:28,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:14:28,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:14:28,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:14:28,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:14:28,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:14:28,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:14:28,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:14:28,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:14:28,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:14:28,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:14:28,139 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:14:28,140 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:14:28,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:14:28,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:14:28,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:14:28,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:14:28,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:14:28,345 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:14:28,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-16 18:14:29,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:14:29,623 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:14:29,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-16 18:14:29,639 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de2c3e93/bd9acf61df454619802b408f4f30b652/FLAG2ff5d658c [2023-12-16 18:14:29,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de2c3e93/bd9acf61df454619802b408f4f30b652 [2023-12-16 18:14:29,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:14:29,655 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:14:29,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:14:29,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:14:29,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:14:29,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:14:29" (1/1) ... [2023-12-16 18:14:29,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a623321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:29, skipping insertion in model container [2023-12-16 18:14:29,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:14:29" (1/1) ... [2023-12-16 18:14:29,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:14:30,031 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_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[24502,24515] [2023-12-16 18:14:30,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:14:30,137 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:14:30,346 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_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[24502,24515] [2023-12-16 18:14:30,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:14:30,464 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:14:30,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30 WrapperNode [2023-12-16 18:14:30,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:14:30,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:14:30,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:14:30,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:14:30,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,543 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2282 [2023-12-16 18:14:30,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:14:30,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:14:30,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:14:30,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:14:30,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,590 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]. [2023-12-16 18:14:30,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:14:30,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:14:30,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:14:30,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:14:30,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (1/1) ... [2023-12-16 18:14:30,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:14:30,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:14:30,750 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) [2023-12-16 18:14:30,832 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 [2023-12-16 18:14:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:14:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:14:30,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:14:30,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:14:30,956 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:14:30,957 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:14:32,193 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:14:32,224 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:14:32,224 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 18:14:32,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:14:32 BoogieIcfgContainer [2023-12-16 18:14:32,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:14:32,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:14:32,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:14:32,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:14:32,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:14:29" (1/3) ... [2023-12-16 18:14:32,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486f6c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:14:32, skipping insertion in model container [2023-12-16 18:14:32,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:14:30" (2/3) ... [2023-12-16 18:14:32,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486f6c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:14:32, skipping insertion in model container [2023-12-16 18:14:32,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:14:32" (3/3) ... [2023-12-16 18:14:32,230 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-16 18:14:32,241 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:14:32,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:14:32,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:14:32,282 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;@6fdea301, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:14:32,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:14:32,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.7908163265306123) internal successors, (1053), 589 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-12-16 18:14:32,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:32,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:32,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:32,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:32,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1583194630, now seen corresponding path program 1 times [2023-12-16 18:14:32,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:32,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099173754] [2023-12-16 18:14:32,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:32,328 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 [2023-12-16 18:14:32,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:32,329 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) [2023-12-16 18:14:32,334 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 [2023-12-16 18:14:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:32,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:32,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:32,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:32,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:32,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099173754] [2023-12-16 18:14:32,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099173754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:32,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:32,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227835570] [2023-12-16 18:14:32,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:32,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:32,918 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.7908163265306123) internal successors, (1053), 589 states have internal predecessors, (1053), 0 states have call successors, (0), 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 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:33,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:33,040 INFO L93 Difference]: Finished difference Result 1737 states and 3102 transitions. [2023-12-16 18:14:33,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:33,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2023-12-16 18:14:33,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:33,053 INFO L225 Difference]: With dead ends: 1737 [2023-12-16 18:14:33,054 INFO L226 Difference]: Without dead ends: 1153 [2023-12-16 18:14:33,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:33,059 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 2247 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:33,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 2680 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-12-16 18:14:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1151. [2023-12-16 18:14:33,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 1.56) internal successors, (1794), 1150 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1794 transitions. [2023-12-16 18:14:33,115 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1794 transitions. Word has length 237 [2023-12-16 18:14:33,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:33,116 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1794 transitions. [2023-12-16 18:14:33,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:33,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1794 transitions. [2023-12-16 18:14:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 18:14:33,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:33,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:33,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 18:14:33,324 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 [2023-12-16 18:14:33,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:33,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash 931261626, now seen corresponding path program 1 times [2023-12-16 18:14:33,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:33,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036071814] [2023-12-16 18:14:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:33,329 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 [2023-12-16 18:14:33,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:33,330 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) [2023-12-16 18:14:33,347 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 [2023-12-16 18:14:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:33,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:33,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:33,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:33,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036071814] [2023-12-16 18:14:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036071814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:33,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:33,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:33,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766843300] [2023-12-16 18:14:33,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:33,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:33,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:33,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:33,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:33,699 INFO L87 Difference]: Start difference. First operand 1151 states and 1794 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:33,779 INFO L93 Difference]: Finished difference Result 3397 states and 5289 transitions. [2023-12-16 18:14:33,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:33,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2023-12-16 18:14:33,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:33,787 INFO L225 Difference]: With dead ends: 3397 [2023-12-16 18:14:33,787 INFO L226 Difference]: Without dead ends: 2257 [2023-12-16 18:14:33,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:33,789 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1940 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:33,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 2338 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:33,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2023-12-16 18:14:33,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2255. [2023-12-16 18:14:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2254 states have (on average 1.5479148181011535) internal successors, (3489), 2254 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3489 transitions. [2023-12-16 18:14:33,823 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3489 transitions. Word has length 239 [2023-12-16 18:14:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:33,824 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3489 transitions. [2023-12-16 18:14:33,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3489 transitions. [2023-12-16 18:14:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 18:14:33,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:33,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:33,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 18:14:34,032 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 [2023-12-16 18:14:34,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:34,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:34,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2010411265, now seen corresponding path program 1 times [2023-12-16 18:14:34,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:34,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909088494] [2023-12-16 18:14:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:34,036 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 [2023-12-16 18:14:34,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:34,037 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) [2023-12-16 18:14:34,040 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 [2023-12-16 18:14:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:34,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:14:34,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:34,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:34,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:34,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909088494] [2023-12-16 18:14:34,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909088494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:34,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:34,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:34,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946393652] [2023-12-16 18:14:34,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:34,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:14:34,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:34,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:14:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:14:34,237 INFO L87 Difference]: Start difference. First operand 2255 states and 3489 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:34,293 INFO L93 Difference]: Finished difference Result 6710 states and 10376 transitions. [2023-12-16 18:14:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:14:34,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2023-12-16 18:14:34,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:34,307 INFO L225 Difference]: With dead ends: 6710 [2023-12-16 18:14:34,308 INFO L226 Difference]: Without dead ends: 4483 [2023-12-16 18:14:34,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:14:34,314 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 905 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:34,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 2320 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2023-12-16 18:14:34,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 2269. [2023-12-16 18:14:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2268 states have (on average 1.5458553791887126) internal successors, (3506), 2268 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3506 transitions. [2023-12-16 18:14:34,382 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3506 transitions. Word has length 241 [2023-12-16 18:14:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:34,383 INFO L495 AbstractCegarLoop]: Abstraction has 2269 states and 3506 transitions. [2023-12-16 18:14:34,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3506 transitions. [2023-12-16 18:14:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:14:34,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:34,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:34,400 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 [2023-12-16 18:14:34,591 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 [2023-12-16 18:14:34,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:34,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1829130816, now seen corresponding path program 1 times [2023-12-16 18:14:34,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:34,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43683024] [2023-12-16 18:14:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:34,593 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 [2023-12-16 18:14:34,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:34,594 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) [2023-12-16 18:14:34,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 18:14:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:34,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:34,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:34,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:34,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:34,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43683024] [2023-12-16 18:14:34,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43683024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:34,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:34,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708477243] [2023-12-16 18:14:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:34,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:34,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:34,780 INFO L87 Difference]: Start difference. First operand 2269 states and 3506 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:34,845 INFO L93 Difference]: Finished difference Result 8446 states and 12922 transitions. [2023-12-16 18:14:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:34,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2023-12-16 18:14:34,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:34,862 INFO L225 Difference]: With dead ends: 8446 [2023-12-16 18:14:34,862 INFO L226 Difference]: Without dead ends: 6472 [2023-12-16 18:14:34,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:34,866 INFO L413 NwaCegarLoop]: 2179 mSDtfsCounter, 2187 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:34,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2187 Valid, 4766 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:34,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2023-12-16 18:14:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 2556. [2023-12-16 18:14:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2555 states have (on average 1.5651663405088063) internal successors, (3999), 2555 states have internal predecessors, (3999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3999 transitions. [2023-12-16 18:14:34,927 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3999 transitions. Word has length 243 [2023-12-16 18:14:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:34,927 INFO L495 AbstractCegarLoop]: Abstraction has 2556 states and 3999 transitions. [2023-12-16 18:14:34,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:34,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3999 transitions. [2023-12-16 18:14:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-16 18:14:34,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:34,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:34,939 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 [2023-12-16 18:14:35,139 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 [2023-12-16 18:14:35,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:35,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:35,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1967858149, now seen corresponding path program 1 times [2023-12-16 18:14:35,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:35,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439652899] [2023-12-16 18:14:35,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:35,141 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 [2023-12-16 18:14:35,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:35,143 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) [2023-12-16 18:14:35,149 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 [2023-12-16 18:14:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:35,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:35,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:35,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:35,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439652899] [2023-12-16 18:14:35,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439652899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:35,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:35,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:35,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581870755] [2023-12-16 18:14:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:35,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:35,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:35,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:35,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:35,477 INFO L87 Difference]: Start difference. First operand 2556 states and 3999 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:35,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:35,553 INFO L93 Difference]: Finished difference Result 7392 states and 11544 transitions. [2023-12-16 18:14:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:35,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2023-12-16 18:14:35,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:35,566 INFO L225 Difference]: With dead ends: 7392 [2023-12-16 18:14:35,567 INFO L226 Difference]: Without dead ends: 4892 [2023-12-16 18:14:35,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:35,571 INFO L413 NwaCegarLoop]: 1465 mSDtfsCounter, 1930 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:35,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 2333 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4892 states. [2023-12-16 18:14:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4892 to 4890. [2023-12-16 18:14:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4890 states, 4889 states have (on average 1.5491920638167314) internal successors, (7574), 4889 states have internal predecessors, (7574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:35,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 7574 transitions. [2023-12-16 18:14:35,644 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 7574 transitions. Word has length 243 [2023-12-16 18:14:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:35,645 INFO L495 AbstractCegarLoop]: Abstraction has 4890 states and 7574 transitions. [2023-12-16 18:14:35,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 7574 transitions. [2023-12-16 18:14:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-16 18:14:35,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:35,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:35,664 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 [2023-12-16 18:14:35,856 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 [2023-12-16 18:14:35,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:35,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1783685156, now seen corresponding path program 1 times [2023-12-16 18:14:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:35,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757150185] [2023-12-16 18:14:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:35,858 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 [2023-12-16 18:14:35,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:35,859 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) [2023-12-16 18:14:35,860 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 [2023-12-16 18:14:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:36,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:36,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:36,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:36,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:36,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757150185] [2023-12-16 18:14:36,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757150185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:36,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:36,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:36,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717700663] [2023-12-16 18:14:36,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:36,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:36,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:36,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:36,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:36,040 INFO L87 Difference]: Start difference. First operand 4890 states and 7574 transitions. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:36,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:36,135 INFO L93 Difference]: Finished difference Result 16411 states and 25040 transitions. [2023-12-16 18:14:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:36,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 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 245 [2023-12-16 18:14:36,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:36,177 INFO L225 Difference]: With dead ends: 16411 [2023-12-16 18:14:36,177 INFO L226 Difference]: Without dead ends: 12493 [2023-12-16 18:14:36,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:36,187 INFO L413 NwaCegarLoop]: 1712 mSDtfsCounter, 2221 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:36,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 4301 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:36,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12493 states. [2023-12-16 18:14:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12493 to 5690. [2023-12-16 18:14:36,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5689 states have (on average 1.5691685709263492) internal successors, (8927), 5689 states have internal predecessors, (8927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 8927 transitions. [2023-12-16 18:14:36,360 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 8927 transitions. Word has length 245 [2023-12-16 18:14:36,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:36,360 INFO L495 AbstractCegarLoop]: Abstraction has 5690 states and 8927 transitions. [2023-12-16 18:14:36,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 8927 transitions. [2023-12-16 18:14:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-16 18:14:36,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:36,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:36,375 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 (7)] Ended with exit code 0 [2023-12-16 18:14:36,572 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 [2023-12-16 18:14:36,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:36,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:36,574 INFO L85 PathProgramCache]: Analyzing trace with hash -854283137, now seen corresponding path program 1 times [2023-12-16 18:14:36,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:36,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685886893] [2023-12-16 18:14:36,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:36,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:14:36,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:36,575 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) [2023-12-16 18:14:36,592 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 [2023-12-16 18:14:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:36,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:36,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:36,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:36,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685886893] [2023-12-16 18:14:36,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685886893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:36,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:36,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:36,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416545806] [2023-12-16 18:14:36,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:36,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:36,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:36,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:36,766 INFO L87 Difference]: Start difference. First operand 5690 states and 8927 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:36,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:36,847 INFO L93 Difference]: Finished difference Result 17686 states and 27146 transitions. [2023-12-16 18:14:36,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:36,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 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 247 [2023-12-16 18:14:36,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:36,871 INFO L225 Difference]: With dead ends: 17686 [2023-12-16 18:14:36,871 INFO L226 Difference]: Without dead ends: 13738 [2023-12-16 18:14:36,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:36,883 INFO L413 NwaCegarLoop]: 1893 mSDtfsCounter, 2144 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 4479 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:36,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 4479 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13738 states. [2023-12-16 18:14:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13738 to 6926. [2023-12-16 18:14:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6926 states, 6925 states have (on average 1.587725631768953) internal successors, (10995), 6925 states have internal predecessors, (10995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6926 states to 6926 states and 10995 transitions. [2023-12-16 18:14:37,041 INFO L78 Accepts]: Start accepts. Automaton has 6926 states and 10995 transitions. Word has length 247 [2023-12-16 18:14:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:37,041 INFO L495 AbstractCegarLoop]: Abstraction has 6926 states and 10995 transitions. [2023-12-16 18:14:37,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:37,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6926 states and 10995 transitions. [2023-12-16 18:14:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-12-16 18:14:37,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:37,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:37,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 18:14:37,255 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 [2023-12-16 18:14:37,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:37,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:37,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2130598298, now seen corresponding path program 1 times [2023-12-16 18:14:37,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:37,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316907835] [2023-12-16 18:14:37,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:37,256 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 [2023-12-16 18:14:37,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:37,257 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) [2023-12-16 18:14:37,259 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 [2023-12-16 18:14:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:37,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:37,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:37,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:37,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:37,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316907835] [2023-12-16 18:14:37,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316907835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:37,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:37,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:37,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353353543] [2023-12-16 18:14:37,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:37,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:37,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:37,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:37,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:37,460 INFO L87 Difference]: Start difference. First operand 6926 states and 10995 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:37,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:37,524 INFO L93 Difference]: Finished difference Result 10427 states and 16200 transitions. [2023-12-16 18:14:37,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:37,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2023-12-16 18:14:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:37,534 INFO L225 Difference]: With dead ends: 10427 [2023-12-16 18:14:37,534 INFO L226 Difference]: Without dead ends: 6049 [2023-12-16 18:14:37,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:37,540 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 219 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2887 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:37,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 2887 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6049 states. [2023-12-16 18:14:37,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6049 to 6049. [2023-12-16 18:14:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6049 states, 6048 states have (on average 1.5795304232804233) internal successors, (9553), 6048 states have internal predecessors, (9553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6049 states to 6049 states and 9553 transitions. [2023-12-16 18:14:37,601 INFO L78 Accepts]: Start accepts. Automaton has 6049 states and 9553 transitions. Word has length 249 [2023-12-16 18:14:37,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:37,601 INFO L495 AbstractCegarLoop]: Abstraction has 6049 states and 9553 transitions. [2023-12-16 18:14:37,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:37,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6049 states and 9553 transitions. [2023-12-16 18:14:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-12-16 18:14:37,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:37,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:37,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 18:14:37,812 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 [2023-12-16 18:14:37,812 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:37,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:37,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1168867222, now seen corresponding path program 1 times [2023-12-16 18:14:37,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:37,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871995970] [2023-12-16 18:14:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:37,814 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 [2023-12-16 18:14:37,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:37,815 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) [2023-12-16 18:14:37,815 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 [2023-12-16 18:14:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:37,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:37,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:38,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:38,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:38,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871995970] [2023-12-16 18:14:38,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871995970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:38,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:38,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:38,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130654187] [2023-12-16 18:14:38,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:38,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:38,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:38,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:38,116 INFO L87 Difference]: Start difference. First operand 6049 states and 9553 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:38,210 INFO L93 Difference]: Finished difference Result 16926 states and 26605 transitions. [2023-12-16 18:14:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:38,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2023-12-16 18:14:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:38,227 INFO L225 Difference]: With dead ends: 16926 [2023-12-16 18:14:38,227 INFO L226 Difference]: Without dead ends: 11306 [2023-12-16 18:14:38,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:38,236 INFO L413 NwaCegarLoop]: 1452 mSDtfsCounter, 1920 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:38,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 2318 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11306 states. [2023-12-16 18:14:38,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11306 to 11304. [2023-12-16 18:14:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11304 states, 11303 states have (on average 1.5527735999292223) internal successors, (17551), 11303 states have internal predecessors, (17551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11304 states to 11304 states and 17551 transitions. [2023-12-16 18:14:38,385 INFO L78 Accepts]: Start accepts. Automaton has 11304 states and 17551 transitions. Word has length 249 [2023-12-16 18:14:38,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:38,385 INFO L495 AbstractCegarLoop]: Abstraction has 11304 states and 17551 transitions. [2023-12-16 18:14:38,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand 11304 states and 17551 transitions. [2023-12-16 18:14:38,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-12-16 18:14:38,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:38,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:38,408 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 [2023-12-16 18:14:38,603 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 [2023-12-16 18:14:38,603 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:38,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1518039406, now seen corresponding path program 1 times [2023-12-16 18:14:38,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901783865] [2023-12-16 18:14:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:38,605 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 [2023-12-16 18:14:38,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:38,605 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) [2023-12-16 18:14:38,607 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 [2023-12-16 18:14:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:38,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:38,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:38,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:38,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:38,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901783865] [2023-12-16 18:14:38,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901783865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:38,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:38,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:38,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108188223] [2023-12-16 18:14:38,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:38,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:38,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:38,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:38,779 INFO L87 Difference]: Start difference. First operand 11304 states and 17551 transitions. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:38,911 INFO L93 Difference]: Finished difference Result 32153 states and 49771 transitions. [2023-12-16 18:14:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:38,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2023-12-16 18:14:38,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:38,943 INFO L225 Difference]: With dead ends: 32153 [2023-12-16 18:14:38,943 INFO L226 Difference]: Without dead ends: 21238 [2023-12-16 18:14:38,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:38,958 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 2065 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:38,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 2319 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21238 states. [2023-12-16 18:14:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21238 to 21236. [2023-12-16 18:14:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21236 states, 21235 states have (on average 1.5316223216388039) internal successors, (32524), 21235 states have internal predecessors, (32524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21236 states to 21236 states and 32524 transitions. [2023-12-16 18:14:39,235 INFO L78 Accepts]: Start accepts. Automaton has 21236 states and 32524 transitions. Word has length 251 [2023-12-16 18:14:39,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:39,235 INFO L495 AbstractCegarLoop]: Abstraction has 21236 states and 32524 transitions. [2023-12-16 18:14:39,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 21236 states and 32524 transitions. [2023-12-16 18:14:39,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-16 18:14:39,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:39,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:39,266 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 [2023-12-16 18:14:39,466 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 [2023-12-16 18:14:39,467 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:39,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash 173810833, now seen corresponding path program 1 times [2023-12-16 18:14:39,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:39,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823735025] [2023-12-16 18:14:39,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:39,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:14:39,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:39,469 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) [2023-12-16 18:14:39,524 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 [2023-12-16 18:14:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:39,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:14:39,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:39,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:39,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:39,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823735025] [2023-12-16 18:14:39,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823735025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:39,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:39,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237270588] [2023-12-16 18:14:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:39,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:14:39,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:14:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:14:39,693 INFO L87 Difference]: Start difference. First operand 21236 states and 32524 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:39,823 INFO L93 Difference]: Finished difference Result 61217 states and 93627 transitions. [2023-12-16 18:14:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:14:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2023-12-16 18:14:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:39,872 INFO L225 Difference]: With dead ends: 61217 [2023-12-16 18:14:39,872 INFO L226 Difference]: Without dead ends: 41277 [2023-12-16 18:14:39,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:14:39,903 INFO L413 NwaCegarLoop]: 1781 mSDtfsCounter, 867 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:39,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 2687 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:39,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41277 states. [2023-12-16 18:14:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41277 to 21611. [2023-12-16 18:14:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21611 states, 21610 states have (on average 1.5253123553910226) internal successors, (32962), 21610 states have internal predecessors, (32962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21611 states to 21611 states and 32962 transitions. [2023-12-16 18:14:40,370 INFO L78 Accepts]: Start accepts. Automaton has 21611 states and 32962 transitions. Word has length 254 [2023-12-16 18:14:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:40,370 INFO L495 AbstractCegarLoop]: Abstraction has 21611 states and 32962 transitions. [2023-12-16 18:14:40,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:40,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21611 states and 32962 transitions. [2023-12-16 18:14:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-16 18:14:40,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:40,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:40,401 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 [2023-12-16 18:14:40,598 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 [2023-12-16 18:14:40,599 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:40,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:40,600 INFO L85 PathProgramCache]: Analyzing trace with hash -636285603, now seen corresponding path program 1 times [2023-12-16 18:14:40,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:40,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767649549] [2023-12-16 18:14:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:40,600 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 [2023-12-16 18:14:40,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:40,601 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) [2023-12-16 18:14:40,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 18:14:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:40,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:40,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:40,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:40,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:40,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:40,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767649549] [2023-12-16 18:14:40,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767649549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:40,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:40,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729275399] [2023-12-16 18:14:40,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:40,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:40,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:40,940 INFO L87 Difference]: Start difference. First operand 21611 states and 32962 transitions. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:41,127 INFO L93 Difference]: Finished difference Result 60839 states and 92757 transitions. [2023-12-16 18:14:41,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:41,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2023-12-16 18:14:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:41,175 INFO L225 Difference]: With dead ends: 60839 [2023-12-16 18:14:41,175 INFO L226 Difference]: Without dead ends: 40434 [2023-12-16 18:14:41,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:41,201 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 1904 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1904 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:41,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1904 Valid, 2309 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:41,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40434 states. [2023-12-16 18:14:41,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40434 to 40406. [2023-12-16 18:14:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40406 states, 40405 states have (on average 1.5108526172503403) internal successors, (61046), 40405 states have internal predecessors, (61046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40406 states to 40406 states and 61046 transitions. [2023-12-16 18:14:41,776 INFO L78 Accepts]: Start accepts. Automaton has 40406 states and 61046 transitions. Word has length 256 [2023-12-16 18:14:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:41,776 INFO L495 AbstractCegarLoop]: Abstraction has 40406 states and 61046 transitions. [2023-12-16 18:14:41,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 40406 states and 61046 transitions. [2023-12-16 18:14:41,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-16 18:14:41,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:41,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:41,829 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 [2023-12-16 18:14:42,022 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 [2023-12-16 18:14:42,022 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:42,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash -969192441, now seen corresponding path program 1 times [2023-12-16 18:14:42,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:42,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315784044] [2023-12-16 18:14:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:42,024 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 [2023-12-16 18:14:42,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:42,025 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) [2023-12-16 18:14:42,025 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 [2023-12-16 18:14:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:42,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:42,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:42,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:42,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:42,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315784044] [2023-12-16 18:14:42,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315784044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:42,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:42,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:42,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540961207] [2023-12-16 18:14:42,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:42,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:42,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:42,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:42,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:42,322 INFO L87 Difference]: Start difference. First operand 40406 states and 61046 transitions. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:42,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:42,655 INFO L93 Difference]: Finished difference Result 121935 states and 181665 transitions. [2023-12-16 18:14:42,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:42,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2023-12-16 18:14:42,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:42,765 INFO L225 Difference]: With dead ends: 121935 [2023-12-16 18:14:42,765 INFO L226 Difference]: Without dead ends: 96833 [2023-12-16 18:14:42,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:42,807 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 2273 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 4026 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:42,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2273 Valid, 4026 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96833 states. [2023-12-16 18:14:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96833 to 53037. [2023-12-16 18:14:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53037 states, 53036 states have (on average 1.5281695452145712) internal successors, (81048), 53036 states have internal predecessors, (81048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53037 states to 53037 states and 81048 transitions. [2023-12-16 18:14:43,835 INFO L78 Accepts]: Start accepts. Automaton has 53037 states and 81048 transitions. Word has length 256 [2023-12-16 18:14:43,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:43,835 INFO L495 AbstractCegarLoop]: Abstraction has 53037 states and 81048 transitions. [2023-12-16 18:14:43,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:43,835 INFO L276 IsEmpty]: Start isEmpty. Operand 53037 states and 81048 transitions. [2023-12-16 18:14:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-16 18:14:43,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:43,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:43,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 18:14:44,102 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 [2023-12-16 18:14:44,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:44,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash -957345313, now seen corresponding path program 1 times [2023-12-16 18:14:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:44,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734340626] [2023-12-16 18:14:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:44,104 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 [2023-12-16 18:14:44,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:44,105 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) [2023-12-16 18:14:44,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 18:14:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:44,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:44,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:44,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:44,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:44,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:44,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734340626] [2023-12-16 18:14:44,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734340626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:44,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:44,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:44,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703679768] [2023-12-16 18:14:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:44,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:44,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:44,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:44,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:44,279 INFO L87 Difference]: Start difference. First operand 53037 states and 81048 transitions. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:44,877 INFO L93 Difference]: Finished difference Result 133509 states and 199771 transitions. [2023-12-16 18:14:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:44,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2023-12-16 18:14:44,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:45,001 INFO L225 Difference]: With dead ends: 133509 [2023-12-16 18:14:45,001 INFO L226 Difference]: Without dead ends: 108191 [2023-12-16 18:14:45,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:45,021 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 2160 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:45,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 4217 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:45,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108191 states. [2023-12-16 18:14:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108191 to 66877. [2023-12-16 18:14:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66877 states, 66876 states have (on average 1.5339284646210898) internal successors, (102583), 66876 states have internal predecessors, (102583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:46,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66877 states to 66877 states and 102583 transitions. [2023-12-16 18:14:46,319 INFO L78 Accepts]: Start accepts. Automaton has 66877 states and 102583 transitions. Word has length 258 [2023-12-16 18:14:46,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:46,320 INFO L495 AbstractCegarLoop]: Abstraction has 66877 states and 102583 transitions. [2023-12-16 18:14:46,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:46,320 INFO L276 IsEmpty]: Start isEmpty. Operand 66877 states and 102583 transitions. [2023-12-16 18:14:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-16 18:14:46,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:46,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:46,398 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 [2023-12-16 18:14:46,595 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 [2023-12-16 18:14:46,595 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:46,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:46,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1316627596, now seen corresponding path program 1 times [2023-12-16 18:14:46,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:46,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107087812] [2023-12-16 18:14:46,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:46,597 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 [2023-12-16 18:14:46,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:46,598 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) [2023-12-16 18:14:46,599 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 [2023-12-16 18:14:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:46,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:46,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:46,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:46,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:46,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107087812] [2023-12-16 18:14:46,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107087812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:46,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:46,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807244151] [2023-12-16 18:14:46,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:46,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:46,841 INFO L87 Difference]: Start difference. First operand 66877 states and 102583 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:47,449 INFO L93 Difference]: Finished difference Result 152719 states and 229420 transitions. [2023-12-16 18:14:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:47,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2023-12-16 18:14:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:47,611 INFO L225 Difference]: With dead ends: 152719 [2023-12-16 18:14:47,611 INFO L226 Difference]: Without dead ends: 127361 [2023-12-16 18:14:47,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:47,811 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 2085 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:47,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 4255 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:47,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127361 states. [2023-12-16 18:14:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127361 to 86073. [2023-12-16 18:14:49,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86073 states, 86072 states have (on average 1.5379101217585278) internal successors, (132371), 86072 states have internal predecessors, (132371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86073 states to 86073 states and 132371 transitions. [2023-12-16 18:14:49,195 INFO L78 Accepts]: Start accepts. Automaton has 86073 states and 132371 transitions. Word has length 260 [2023-12-16 18:14:49,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:49,196 INFO L495 AbstractCegarLoop]: Abstraction has 86073 states and 132371 transitions. [2023-12-16 18:14:49,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 86073 states and 132371 transitions. [2023-12-16 18:14:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-16 18:14:49,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:49,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:49,532 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 (16)] Ended with exit code 0 [2023-12-16 18:14:49,732 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 [2023-12-16 18:14:49,732 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:49,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash -825738234, now seen corresponding path program 1 times [2023-12-16 18:14:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808937067] [2023-12-16 18:14:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:49,734 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 [2023-12-16 18:14:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:49,735 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) [2023-12-16 18:14:49,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 18:14:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:49,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:49,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:49,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:49,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:49,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808937067] [2023-12-16 18:14:49,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808937067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:49,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:49,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:49,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926779532] [2023-12-16 18:14:49,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:49,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:14:49,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:49,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:14:49,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:14:49,958 INFO L87 Difference]: Start difference. First operand 86073 states and 132371 transitions. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:50,263 INFO L93 Difference]: Finished difference Result 108659 states and 164998 transitions. [2023-12-16 18:14:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:14:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 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 262 [2023-12-16 18:14:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:50,571 INFO L225 Difference]: With dead ends: 108659 [2023-12-16 18:14:50,571 INFO L226 Difference]: Without dead ends: 73863 [2023-12-16 18:14:50,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:50,598 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 162 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:50,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 2851 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:14:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73863 states. [2023-12-16 18:14:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73863 to 73863. [2023-12-16 18:14:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73863 states, 73862 states have (on average 1.5318702445100323) internal successors, (113147), 73862 states have internal predecessors, (113147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73863 states to 73863 states and 113147 transitions. [2023-12-16 18:14:51,541 INFO L78 Accepts]: Start accepts. Automaton has 73863 states and 113147 transitions. Word has length 262 [2023-12-16 18:14:51,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:51,541 INFO L495 AbstractCegarLoop]: Abstraction has 73863 states and 113147 transitions. [2023-12-16 18:14:51,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:51,541 INFO L276 IsEmpty]: Start isEmpty. Operand 73863 states and 113147 transitions. [2023-12-16 18:14:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-12-16 18:14:51,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:51,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:51,624 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 [2023-12-16 18:14:51,821 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 [2023-12-16 18:14:51,822 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:51,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:51,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1561089376, now seen corresponding path program 1 times [2023-12-16 18:14:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:51,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126302645] [2023-12-16 18:14:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:51,823 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 [2023-12-16 18:14:51,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:51,824 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) [2023-12-16 18:14:51,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 18:14:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:51,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:14:51,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:52,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:52,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:52,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126302645] [2023-12-16 18:14:52,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126302645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:52,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:52,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:14:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552096160] [2023-12-16 18:14:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:52,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:14:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:52,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:14:52,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:14:52,207 INFO L87 Difference]: Start difference. First operand 73863 states and 113147 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:52,859 INFO L93 Difference]: Finished difference Result 155008 states and 232676 transitions. [2023-12-16 18:14:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:14:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263 [2023-12-16 18:14:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:53,029 INFO L225 Difference]: With dead ends: 155008 [2023-12-16 18:14:53,030 INFO L226 Difference]: Without dead ends: 124930 [2023-12-16 18:14:53,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:14:53,086 INFO L413 NwaCegarLoop]: 1722 mSDtfsCounter, 638 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:53,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 2596 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:14:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124930 states. [2023-12-16 18:14:54,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124930 to 120824. [2023-12-16 18:14:54,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120824 states, 120823 states have (on average 1.507510987146487) internal successors, (182142), 120823 states have internal predecessors, (182142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120824 states to 120824 states and 182142 transitions. [2023-12-16 18:14:54,945 INFO L78 Accepts]: Start accepts. Automaton has 120824 states and 182142 transitions. Word has length 263 [2023-12-16 18:14:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:54,945 INFO L495 AbstractCegarLoop]: Abstraction has 120824 states and 182142 transitions. [2023-12-16 18:14:54,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 120824 states and 182142 transitions. [2023-12-16 18:14:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-16 18:14:55,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:55,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:55,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 18:14:55,286 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 [2023-12-16 18:14:55,287 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:55,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:55,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1564820283, now seen corresponding path program 1 times [2023-12-16 18:14:55,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:55,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503321358] [2023-12-16 18:14:55,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:55,288 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 [2023-12-16 18:14:55,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:55,289 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) [2023-12-16 18:14:55,293 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 [2023-12-16 18:14:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:55,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:14:55,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:14:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:14:56,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:14:56,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:14:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503321358] [2023-12-16 18:14:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503321358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:14:56,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:14:56,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:14:56,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472897969] [2023-12-16 18:14:56,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:14:56,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:14:56,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:14:56,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:14:56,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:14:56,570 INFO L87 Difference]: Start difference. First operand 120824 states and 182142 transitions. Second operand has 5 states, 5 states have (on average 52.8) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:57,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:14:57,248 INFO L93 Difference]: Finished difference Result 153509 states and 230261 transitions. [2023-12-16 18:14:57,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:14:57,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 52.8) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 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 264 [2023-12-16 18:14:57,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:14:57,445 INFO L225 Difference]: With dead ends: 153509 [2023-12-16 18:14:57,445 INFO L226 Difference]: Without dead ends: 120824 [2023-12-16 18:14:57,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:14:57,500 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 1327 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:14:57,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 1262 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:14:57,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120824 states. [2023-12-16 18:14:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120824 to 120824. [2023-12-16 18:14:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120824 states, 120823 states have (on average 1.5033395959378595) internal successors, (181638), 120823 states have internal predecessors, (181638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120824 states to 120824 states and 181638 transitions. [2023-12-16 18:14:59,243 INFO L78 Accepts]: Start accepts. Automaton has 120824 states and 181638 transitions. Word has length 264 [2023-12-16 18:14:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:14:59,244 INFO L495 AbstractCegarLoop]: Abstraction has 120824 states and 181638 transitions. [2023-12-16 18:14:59,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.8) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:14:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 120824 states and 181638 transitions. [2023-12-16 18:14:59,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-16 18:14:59,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:14:59,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:14:59,415 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 (19)] Forceful destruction successful, exit code 0 [2023-12-16 18:14:59,612 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 [2023-12-16 18:14:59,612 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:14:59,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:14:59,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1406471931, now seen corresponding path program 1 times [2023-12-16 18:14:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:14:59,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481766291] [2023-12-16 18:14:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:14:59,614 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 [2023-12-16 18:14:59,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:14:59,615 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) [2023-12-16 18:14:59,618 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 [2023-12-16 18:14:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:14:59,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:14:59,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:00,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:15:00,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:00,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:00,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481766291] [2023-12-16 18:15:00,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481766291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:00,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:00,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:00,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181369933] [2023-12-16 18:15:00,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:00,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:00,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:00,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:00,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:00,228 INFO L87 Difference]: Start difference. First operand 120824 states and 181638 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:01,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:01,220 INFO L93 Difference]: Finished difference Result 267671 states and 401899 transitions. [2023-12-16 18:15:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:01,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 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 264 [2023-12-16 18:15:01,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:01,508 INFO L225 Difference]: With dead ends: 267671 [2023-12-16 18:15:01,508 INFO L226 Difference]: Without dead ends: 156467 [2023-12-16 18:15:01,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:15:01,593 INFO L413 NwaCegarLoop]: 1420 mSDtfsCounter, 1883 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:01,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 2275 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:15:01,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156467 states. [2023-12-16 18:15:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156467 to 123341. [2023-12-16 18:15:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123341 states, 123340 states have (on average 1.4957921193449002) internal successors, (184491), 123340 states have internal predecessors, (184491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123341 states to 123341 states and 184491 transitions. [2023-12-16 18:15:03,554 INFO L78 Accepts]: Start accepts. Automaton has 123341 states and 184491 transitions. Word has length 264 [2023-12-16 18:15:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:03,554 INFO L495 AbstractCegarLoop]: Abstraction has 123341 states and 184491 transitions. [2023-12-16 18:15:03,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 123341 states and 184491 transitions. [2023-12-16 18:15:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-16 18:15:03,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:03,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:03,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 18:15:03,900 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 [2023-12-16 18:15:03,900 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:03,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1758259502, now seen corresponding path program 1 times [2023-12-16 18:15:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:03,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475851154] [2023-12-16 18:15:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:03,902 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 [2023-12-16 18:15:03,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:03,903 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) [2023-12-16 18:15:03,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 18:15:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:04,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:04,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:15:04,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:04,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:04,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475851154] [2023-12-16 18:15:04,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475851154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:04,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:04,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:04,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388278271] [2023-12-16 18:15:04,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:04,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:04,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:04,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:04,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:04,072 INFO L87 Difference]: Start difference. First operand 123341 states and 184491 transitions. Second operand has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:05,411 INFO L93 Difference]: Finished difference Result 331049 states and 493555 transitions. [2023-12-16 18:15:05,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:05,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2023-12-16 18:15:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:05,719 INFO L225 Difference]: With dead ends: 331049 [2023-12-16 18:15:05,719 INFO L226 Difference]: Without dead ends: 217466 [2023-12-16 18:15:05,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:15:05,758 INFO L413 NwaCegarLoop]: 1377 mSDtfsCounter, 2088 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:05,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 2232 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217466 states. [2023-12-16 18:15:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217466 to 215411. [2023-12-16 18:15:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215411 states, 215410 states have (on average 1.4683626572582518) internal successors, (316300), 215410 states have internal predecessors, (316300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215411 states to 215411 states and 316300 transitions. [2023-12-16 18:15:09,119 INFO L78 Accepts]: Start accepts. Automaton has 215411 states and 316300 transitions. Word has length 266 [2023-12-16 18:15:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:09,119 INFO L495 AbstractCegarLoop]: Abstraction has 215411 states and 316300 transitions. [2023-12-16 18:15:09,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 215411 states and 316300 transitions. [2023-12-16 18:15:09,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-16 18:15:09,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:09,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:09,624 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 [2023-12-16 18:15:09,823 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 [2023-12-16 18:15:09,824 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:09,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:09,824 INFO L85 PathProgramCache]: Analyzing trace with hash 403183494, now seen corresponding path program 1 times [2023-12-16 18:15:09,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:09,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928334945] [2023-12-16 18:15:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:09,825 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 [2023-12-16 18:15:09,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:09,827 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) [2023-12-16 18:15:09,828 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 [2023-12-16 18:15:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:10,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:15:10,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:15:10,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:10,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:10,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928334945] [2023-12-16 18:15:10,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928334945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:10,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:10,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:10,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355628919] [2023-12-16 18:15:10,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:10,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:15:10,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:10,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:15:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:10,048 INFO L87 Difference]: Start difference. First operand 215411 states and 316300 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:11,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:11,979 INFO L93 Difference]: Finished difference Result 578755 states and 848137 transitions. [2023-12-16 18:15:11,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:15:11,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2023-12-16 18:15:11,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:12,670 INFO L225 Difference]: With dead ends: 578755 [2023-12-16 18:15:12,670 INFO L226 Difference]: Without dead ends: 394374 [2023-12-16 18:15:12,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:15:12,793 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 823 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:12,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 2265 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394374 states. [2023-12-16 18:15:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394374 to 221805. [2023-12-16 18:15:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221805 states, 221804 states have (on average 1.4602937728805612) internal successors, (323899), 221804 states have internal predecessors, (323899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221805 states to 221805 states and 323899 transitions. [2023-12-16 18:15:16,945 INFO L78 Accepts]: Start accepts. Automaton has 221805 states and 323899 transitions. Word has length 269 [2023-12-16 18:15:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:16,946 INFO L495 AbstractCegarLoop]: Abstraction has 221805 states and 323899 transitions. [2023-12-16 18:15:16,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 221805 states and 323899 transitions. [2023-12-16 18:15:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-16 18:15:17,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:17,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:17,241 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 [2023-12-16 18:15:17,438 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 [2023-12-16 18:15:17,438 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:17,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash -804812365, now seen corresponding path program 1 times [2023-12-16 18:15:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:17,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831522727] [2023-12-16 18:15:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:17,440 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 [2023-12-16 18:15:17,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:17,441 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) [2023-12-16 18:15:17,443 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 [2023-12-16 18:15:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:17,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:17,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:15:17,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:17,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831522727] [2023-12-16 18:15:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831522727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:17,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:17,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:15:17,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544458893] [2023-12-16 18:15:17,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:17,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:17,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:17,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:17,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:17,621 INFO L87 Difference]: Start difference. First operand 221805 states and 323899 transitions. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:19,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:15:19,459 INFO L93 Difference]: Finished difference Result 580335 states and 840131 transitions. [2023-12-16 18:15:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:15:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 0 states have call successors, (0), 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 271 [2023-12-16 18:15:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:15:20,520 INFO L225 Difference]: With dead ends: 580335 [2023-12-16 18:15:20,521 INFO L226 Difference]: Without dead ends: 498321 [2023-12-16 18:15:20,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:15:20,626 INFO L413 NwaCegarLoop]: 2061 mSDtfsCounter, 1978 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:20,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 4547 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498321 states. [2023-12-16 18:15:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498321 to 336085. [2023-12-16 18:15:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336085 states, 336084 states have (on average 1.4730722081384415) internal successors, (495076), 336084 states have internal predecessors, (495076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336085 states to 336085 states and 495076 transitions. [2023-12-16 18:15:27,312 INFO L78 Accepts]: Start accepts. Automaton has 336085 states and 495076 transitions. Word has length 271 [2023-12-16 18:15:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:15:27,312 INFO L495 AbstractCegarLoop]: Abstraction has 336085 states and 495076 transitions. [2023-12-16 18:15:27,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 18:15:27,312 INFO L276 IsEmpty]: Start isEmpty. Operand 336085 states and 495076 transitions. [2023-12-16 18:15:28,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-16 18:15:28,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:15:28,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:28,482 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 [2023-12-16 18:15:28,682 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 [2023-12-16 18:15:28,682 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:15:28,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:15:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2117830276, now seen corresponding path program 1 times [2023-12-16 18:15:28,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:15:28,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349324020] [2023-12-16 18:15:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:15:28,684 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 [2023-12-16 18:15:28,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:15:28,685 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) [2023-12-16 18:15:28,685 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 [2023-12-16 18:15:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:15:28,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:15:28,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:15:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 18:15:29,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:15:29,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:15:29,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349324020] [2023-12-16 18:15:29,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349324020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:15:29,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:15:29,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:15:29,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604980923] [2023-12-16 18:15:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:15:29,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 18:15:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:15:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 18:15:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 18:15:29,017 INFO L87 Difference]: Start difference. First operand 336085 states and 495076 transitions. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 18:15:30,357 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:15:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 18:15:30,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:15:30,362 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 442 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:15:30,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 439 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:15:30,363 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:15:30,367 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 [2023-12-16 18:15:30,369 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:15:30,564 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 [2023-12-16 18:15:30,565 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (336085states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (393215 states constructed, input type IntersectNwa). [2023-12-16 18:15:30,568 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:15:30,570 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:15:30,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:15:30 BoogieIcfgContainer [2023-12-16 18:15:30,571 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:15:30,571 INFO L158 Benchmark]: Toolchain (without parser) took 60916.68ms. Allocated memory was 273.7MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 223.1MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2023-12-16 18:15:30,571 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory was 135.9MB in the beginning and 135.7MB in the end (delta: 168.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:15:30,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.91ms. Allocated memory is still 273.7MB. Free memory was 222.7MB in the beginning and 240.1MB in the end (delta: -17.4MB). Peak memory consumption was 53.7MB. Max. memory is 8.0GB. [2023-12-16 18:15:30,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.43ms. Allocated memory is still 273.7MB. Free memory was 240.1MB in the beginning and 232.3MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 18:15:30,572 INFO L158 Benchmark]: Boogie Preprocessor took 120.23ms. Allocated memory is still 273.7MB. Free memory was 232.3MB in the beginning and 222.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 18:15:30,572 INFO L158 Benchmark]: RCFGBuilder took 1557.32ms. Allocated memory is still 273.7MB. Free memory was 222.9MB in the beginning and 147.1MB in the end (delta: 75.8MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. [2023-12-16 18:15:30,572 INFO L158 Benchmark]: TraceAbstraction took 58345.09ms. Allocated memory was 273.7MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 146.6MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2023-12-16 18:15:30,573 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory was 135.9MB in the beginning and 135.7MB in the end (delta: 168.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 807.91ms. Allocated memory is still 273.7MB. Free memory was 222.7MB in the beginning and 240.1MB in the end (delta: -17.4MB). Peak memory consumption was 53.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 77.43ms. Allocated memory is still 273.7MB. Free memory was 240.1MB in the beginning and 232.3MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.23ms. Allocated memory is still 273.7MB. Free memory was 232.3MB in the beginning and 222.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1557.32ms. Allocated memory is still 273.7MB. Free memory was 222.9MB in the beginning and 147.1MB in the end (delta: 75.8MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. * TraceAbstraction took 58345.09ms. Allocated memory was 273.7MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 146.6MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1422]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1422). Cancelled while NwaCegarLoop was constructing difference of abstraction (336085states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (393215 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.3s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 3.1s, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36408 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36408 mSDsluCounter, 66702 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32931 mSDsCounter, 278 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 805 IncrementalHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 278 mSolverCounterUnsat, 33771 mSDtfsCounter, 805 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5854 GetRequests, 5792 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336085occurred in iteration=22, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 26.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 539939 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 5858 NumberOfCodeBlocks, 5858 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 5835 ConstructedInterpolants, 110 QuantifiedInterpolants, 13859 SizeOfPredicates, 21 NumberOfNonLiveVariables, 11977 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown