/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 10:56:47,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 10:56:47,634 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 10:56:47,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 10:56:47,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 10:56:47,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 10:56:47,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 10:56:47,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 10:56:47,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 10:56:47,652 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 10:56:47,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 10:56:47,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 10:56:47,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 10:56:47,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 10:56:47,653 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 10:56:47,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 10:56:47,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 10:56:47,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 10:56:47,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 10:56:47,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 10:56:47,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 10:56:47,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 10:56:47,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 10:56:47,656 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 10:56:47,656 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 10:56:47,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 10:56:47,656 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 10:56:47,657 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 10:56:47,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 10:56:47,657 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 10:56:47,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 10:56:47,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 10:56:47,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 10:56:47,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 10:56:47,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 10:56:47,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 10:56:47,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 10:56:47,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 10:56:47,659 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 10:56:47,659 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 10:56:47,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 10:56:47,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 10:56:47,659 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 10:56:47,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 10:56:47,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 10:56:47,660 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 10:56:47,660 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 10:56:47,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 10:56:47,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 10:56:47,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 10:56:47,839 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 10:56:47,840 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 10:56:47,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2023-12-25 10:56:48,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 10:56:49,078 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 10:56:49,081 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2023-12-25 10:56:49,088 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/952a54139/3c1cd7ea6dcc4c3f86b07e95049644fd/FLAGcd560f383 [2023-12-25 10:56:49,098 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/952a54139/3c1cd7ea6dcc4c3f86b07e95049644fd [2023-12-25 10:56:49,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 10:56:49,100 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 10:56:49,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 10:56:49,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 10:56:49,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 10:56:49,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f50f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49, skipping insertion in model container [2023-12-25 10:56:49,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 10:56:49,281 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2023-12-25 10:56:49,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 10:56:49,314 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 10:56:49,347 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2023-12-25 10:56:49,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 10:56:49,374 INFO L206 MainTranslator]: Completed translation [2023-12-25 10:56:49,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49 WrapperNode [2023-12-25 10:56:49,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 10:56:49,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 10:56:49,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 10:56:49,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 10:56:49,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,409 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 601 [2023-12-25 10:56:49,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 10:56:49,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 10:56:49,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 10:56:49,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 10:56:49,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,448 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 10:56:49,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 10:56:49,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 10:56:49,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 10:56:49,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 10:56:49,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (1/1) ... [2023-12-25 10:56:49,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 10:56:49,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 10:56:49,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 10:56:49,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 10:56:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 10:56:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 10:56:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 10:56:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 10:56:49,705 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 10:56:49,707 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 10:56:50,122 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 10:56:50,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 10:56:50,155 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 10:56:50,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:56:50 BoogieIcfgContainer [2023-12-25 10:56:50,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 10:56:50,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 10:56:50,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 10:56:50,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 10:56:50,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 10:56:49" (1/3) ... [2023-12-25 10:56:50,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49774cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:56:50, skipping insertion in model container [2023-12-25 10:56:50,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:56:49" (2/3) ... [2023-12-25 10:56:50,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49774cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:56:50, skipping insertion in model container [2023-12-25 10:56:50,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:56:50" (3/3) ... [2023-12-25 10:56:50,162 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2023-12-25 10:56:50,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 10:56:50,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 10:56:50,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 10:56:50,214 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;@68e8081c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 10:56:50,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 10:56:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 133 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 10:56:50,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:50,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:56:50,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:50,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash 555090615, now seen corresponding path program 1 times [2023-12-25 10:56:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:50,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112543423] [2023-12-25 10:56:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:50,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:50,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:50,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:50,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 10:56:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:50,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:50,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:50,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:50,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:50,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112543423] [2023-12-25 10:56:50,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112543423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:50,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:50,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:50,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921851151] [2023-12-25 10:56:50,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:50,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:50,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:50,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:50,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:50,572 INFO L87 Difference]: Start difference. First operand has 134 states, 132 states have (on average 1.7651515151515151) internal successors, (233), 133 states have internal predecessors, (233), 0 states have call successors, (0), 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 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:50,629 INFO L93 Difference]: Finished difference Result 290 states and 480 transitions. [2023-12-25 10:56:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:50,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 10:56:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:50,642 INFO L225 Difference]: With dead ends: 290 [2023-12-25 10:56:50,642 INFO L226 Difference]: Without dead ends: 204 [2023-12-25 10:56:50,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:50,648 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 165 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:50,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 467 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-25 10:56:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2023-12-25 10:56:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.4477611940298507) internal successors, (291), 201 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 291 transitions. [2023-12-25 10:56:50,705 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 291 transitions. Word has length 85 [2023-12-25 10:56:50,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:50,705 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 291 transitions. [2023-12-25 10:56:50,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:50,705 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 291 transitions. [2023-12-25 10:56:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 10:56:50,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:50,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:56:50,712 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 [2023-12-25 10:56:50,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:50,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:50,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:50,911 INFO L85 PathProgramCache]: Analyzing trace with hash 2129284340, now seen corresponding path program 1 times [2023-12-25 10:56:50,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:50,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199424902] [2023-12-25 10:56:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:50,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:50,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 10:56:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:51,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:51,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:51,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:51,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:51,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199424902] [2023-12-25 10:56:51,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199424902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:51,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:51,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:51,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654515999] [2023-12-25 10:56:51,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:51,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:51,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:51,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:51,134 INFO L87 Difference]: Start difference. First operand 202 states and 291 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:51,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:51,149 INFO L93 Difference]: Finished difference Result 486 states and 743 transitions. [2023-12-25 10:56:51,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:51,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-25 10:56:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:51,151 INFO L225 Difference]: With dead ends: 486 [2023-12-25 10:56:51,151 INFO L226 Difference]: Without dead ends: 336 [2023-12-25 10:56:51,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:51,152 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 112 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:51,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 406 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-25 10:56:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2023-12-25 10:56:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.5045045045045045) internal successors, (501), 333 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 501 transitions. [2023-12-25 10:56:51,177 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 501 transitions. Word has length 86 [2023-12-25 10:56:51,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:51,177 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 501 transitions. [2023-12-25 10:56:51,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 501 transitions. [2023-12-25 10:56:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 10:56:51,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:51,178 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] [2023-12-25 10:56:51,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 10:56:51,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:51,382 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:51,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2096979309, now seen corresponding path program 1 times [2023-12-25 10:56:51,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:51,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272912962] [2023-12-25 10:56:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:51,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:51,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:51,401 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:51,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 10:56:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:51,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:56:51,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:51,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:51,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:51,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:51,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272912962] [2023-12-25 10:56:51,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272912962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:51,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:51,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:56:51,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010332064] [2023-12-25 10:56:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:51,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:56:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:51,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:56:51,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:56:51,995 INFO L87 Difference]: Start difference. First operand 334 states and 501 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:52,087 INFO L93 Difference]: Finished difference Result 616 states and 950 transitions. [2023-12-25 10:56:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:56:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-25 10:56:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:52,089 INFO L225 Difference]: With dead ends: 616 [2023-12-25 10:56:52,089 INFO L226 Difference]: Without dead ends: 334 [2023-12-25 10:56:52,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:56:52,091 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 288 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:52,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 121 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:56:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-25 10:56:52,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2023-12-25 10:56:52,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.4984984984984986) internal successors, (499), 333 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:52,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 499 transitions. [2023-12-25 10:56:52,099 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 499 transitions. Word has length 87 [2023-12-25 10:56:52,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:52,099 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 499 transitions. [2023-12-25 10:56:52,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 499 transitions. [2023-12-25 10:56:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 10:56:52,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:52,100 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] [2023-12-25 10:56:52,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 10:56:52,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:52,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:52,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash -870602798, now seen corresponding path program 1 times [2023-12-25 10:56:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:52,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569257167] [2023-12-25 10:56:52,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:52,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:52,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:52,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:52,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 10:56:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:52,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:52,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:52,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:52,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:52,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569257167] [2023-12-25 10:56:52,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569257167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:52,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:52,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:52,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741610013] [2023-12-25 10:56:52,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:52,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:52,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:52,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:52,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:52,471 INFO L87 Difference]: Start difference. First operand 334 states and 499 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:52,484 INFO L93 Difference]: Finished difference Result 866 states and 1341 transitions. [2023-12-25 10:56:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:52,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-25 10:56:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:52,487 INFO L225 Difference]: With dead ends: 866 [2023-12-25 10:56:52,487 INFO L226 Difference]: Without dead ends: 584 [2023-12-25 10:56:52,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:52,493 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 106 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:52,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 400 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-25 10:56:52,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 582. [2023-12-25 10:56:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.5301204819277108) internal successors, (889), 581 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 889 transitions. [2023-12-25 10:56:52,512 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 889 transitions. Word has length 87 [2023-12-25 10:56:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:52,513 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 889 transitions. [2023-12-25 10:56:52,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 889 transitions. [2023-12-25 10:56:52,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 10:56:52,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:52,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:56:52,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 10:56:52,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:52,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:52,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash 844832342, now seen corresponding path program 1 times [2023-12-25 10:56:52,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:52,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136228287] [2023-12-25 10:56:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:52,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:52,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:52,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:52,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 10:56:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:52,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:56:52,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:53,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:53,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:53,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136228287] [2023-12-25 10:56:53,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136228287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:53,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:53,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:56:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964230839] [2023-12-25 10:56:53,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:53,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:56:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:56:53,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:56:53,232 INFO L87 Difference]: Start difference. First operand 582 states and 889 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:53,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:53,320 INFO L93 Difference]: Finished difference Result 1112 states and 1726 transitions. [2023-12-25 10:56:53,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:56:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 10:56:53,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:53,323 INFO L225 Difference]: With dead ends: 1112 [2023-12-25 10:56:53,323 INFO L226 Difference]: Without dead ends: 582 [2023-12-25 10:56:53,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:56:53,324 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 390 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:53,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 129 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:56:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-25 10:56:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-12-25 10:56:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.5232358003442341) internal successors, (885), 581 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 885 transitions. [2023-12-25 10:56:53,331 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 885 transitions. Word has length 88 [2023-12-25 10:56:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:53,331 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 885 transitions. [2023-12-25 10:56:53,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 885 transitions. [2023-12-25 10:56:53,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 10:56:53,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:53,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:56:53,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 10:56:53,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:53,540 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:53,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1591712965, now seen corresponding path program 1 times [2023-12-25 10:56:53,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121620970] [2023-12-25 10:56:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:53,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:53,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:53,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:53,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 10:56:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:53,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:53,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:53,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:53,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:53,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121620970] [2023-12-25 10:56:53,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121620970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:53,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:53,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:53,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205926006] [2023-12-25 10:56:53,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:53,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:53,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:53,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:53,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:53,694 INFO L87 Difference]: Start difference. First operand 582 states and 885 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:53,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:53,721 INFO L93 Difference]: Finished difference Result 1578 states and 2447 transitions. [2023-12-25 10:56:53,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:53,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 10:56:53,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:53,725 INFO L225 Difference]: With dead ends: 1578 [2023-12-25 10:56:53,725 INFO L226 Difference]: Without dead ends: 1048 [2023-12-25 10:56:53,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:53,727 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 100 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:53,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-25 10:56:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1046. [2023-12-25 10:56:53,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1045 states have (on average 1.5358851674641147) internal successors, (1605), 1045 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:53,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1605 transitions. [2023-12-25 10:56:53,751 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1605 transitions. Word has length 88 [2023-12-25 10:56:53,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:53,751 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1605 transitions. [2023-12-25 10:56:53,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1605 transitions. [2023-12-25 10:56:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 10:56:53,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:53,752 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] [2023-12-25 10:56:53,758 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 [2023-12-25 10:56:53,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:53,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:53,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash -305612512, now seen corresponding path program 1 times [2023-12-25 10:56:53,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:53,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322580277] [2023-12-25 10:56:53,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:53,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:53,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:53,970 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:54,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 10:56:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:54,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:56:54,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:54,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:54,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:54,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322580277] [2023-12-25 10:56:54,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322580277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:54,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:54,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:56:54,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892172601] [2023-12-25 10:56:54,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:54,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:56:54,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:56:54,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:56:54,439 INFO L87 Difference]: Start difference. First operand 1046 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:54,525 INFO L93 Difference]: Finished difference Result 2040 states and 3158 transitions. [2023-12-25 10:56:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:56:54,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-25 10:56:54,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:54,528 INFO L225 Difference]: With dead ends: 2040 [2023-12-25 10:56:54,528 INFO L226 Difference]: Without dead ends: 1046 [2023-12-25 10:56:54,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:56:54,529 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 266 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:54,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 137 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:56:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2023-12-25 10:56:54,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2023-12-25 10:56:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1045 states have (on average 1.5282296650717704) internal successors, (1597), 1045 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1597 transitions. [2023-12-25 10:56:54,543 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1597 transitions. Word has length 89 [2023-12-25 10:56:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:54,543 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1597 transitions. [2023-12-25 10:56:54,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:54,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1597 transitions. [2023-12-25 10:56:54,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 10:56:54,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:54,544 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] [2023-12-25 10:56:54,562 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 [2023-12-25 10:56:54,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:54,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:54,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:54,747 INFO L85 PathProgramCache]: Analyzing trace with hash 668350597, now seen corresponding path program 1 times [2023-12-25 10:56:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:54,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487301913] [2023-12-25 10:56:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:54,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:54,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:54,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:54,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 10:56:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:54,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:54,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:54,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:54,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:54,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487301913] [2023-12-25 10:56:54,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487301913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:54,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:54,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:54,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459262738] [2023-12-25 10:56:54,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:54,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:54,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:54,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:54,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:54,900 INFO L87 Difference]: Start difference. First operand 1046 states and 1597 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:54,917 INFO L93 Difference]: Finished difference Result 2906 states and 4479 transitions. [2023-12-25 10:56:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:54,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-25 10:56:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:54,923 INFO L225 Difference]: With dead ends: 2906 [2023-12-25 10:56:54,923 INFO L226 Difference]: Without dead ends: 1912 [2023-12-25 10:56:54,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:54,925 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 94 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:54,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 388 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-12-25 10:56:54,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1910. [2023-12-25 10:56:54,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1909 states have (on average 1.5280251440544788) internal successors, (2917), 1909 states have internal predecessors, (2917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2917 transitions. [2023-12-25 10:56:54,951 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2917 transitions. Word has length 89 [2023-12-25 10:56:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:54,951 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2917 transitions. [2023-12-25 10:56:54,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2917 transitions. [2023-12-25 10:56:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 10:56:54,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:54,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:56:54,996 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 [2023-12-25 10:56:55,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:55,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:55,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash 733129525, now seen corresponding path program 1 times [2023-12-25 10:56:55,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:55,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567833094] [2023-12-25 10:56:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:55,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:55,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:55,183 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:55,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 10:56:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:55,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:56:55,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:55,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:55,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567833094] [2023-12-25 10:56:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567833094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:55,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:56:55,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481995677] [2023-12-25 10:56:55,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:55,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:56:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:56:55,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:56:55,575 INFO L87 Difference]: Start difference. First operand 1910 states and 2917 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:55,663 INFO L93 Difference]: Finished difference Result 3768 states and 5782 transitions. [2023-12-25 10:56:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:56:55,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-25 10:56:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:55,668 INFO L225 Difference]: With dead ends: 3768 [2023-12-25 10:56:55,668 INFO L226 Difference]: Without dead ends: 1910 [2023-12-25 10:56:55,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:56:55,670 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 356 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:55,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 145 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:56:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2023-12-25 10:56:55,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1910. [2023-12-25 10:56:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1909 states have (on average 1.5196437925615505) internal successors, (2901), 1909 states have internal predecessors, (2901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2901 transitions. [2023-12-25 10:56:55,692 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2901 transitions. Word has length 90 [2023-12-25 10:56:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:55,692 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2901 transitions. [2023-12-25 10:56:55,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2901 transitions. [2023-12-25 10:56:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 10:56:55,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:55,692 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] [2023-12-25 10:56:55,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 10:56:55,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:55,913 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:55,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:55,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1598661914, now seen corresponding path program 1 times [2023-12-25 10:56:55,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:55,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797153811] [2023-12-25 10:56:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:55,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:55,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:55,915 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:55,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 10:56:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:56,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:56,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:56,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:56,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:56,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797153811] [2023-12-25 10:56:56,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797153811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:56,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:56,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100861011] [2023-12-25 10:56:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:56,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:56,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:56,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:56,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:56,083 INFO L87 Difference]: Start difference. First operand 1910 states and 2901 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:56,105 INFO L93 Difference]: Finished difference Result 5370 states and 8183 transitions. [2023-12-25 10:56:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-25 10:56:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:56,114 INFO L225 Difference]: With dead ends: 5370 [2023-12-25 10:56:56,114 INFO L226 Difference]: Without dead ends: 3512 [2023-12-25 10:56:56,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:56,116 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 88 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:56,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 382 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2023-12-25 10:56:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3510. [2023-12-25 10:56:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3509 states have (on average 1.5106868053576517) internal successors, (5301), 3509 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 5301 transitions. [2023-12-25 10:56:56,159 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 5301 transitions. Word has length 90 [2023-12-25 10:56:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:56,160 INFO L495 AbstractCegarLoop]: Abstraction has 3510 states and 5301 transitions. [2023-12-25 10:56:56,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:56,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 5301 transitions. [2023-12-25 10:56:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 10:56:56,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:56,160 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] [2023-12-25 10:56:56,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 10:56:56,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:56,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:56,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:56,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1725555920, now seen corresponding path program 1 times [2023-12-25 10:56:56,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:56,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759872253] [2023-12-25 10:56:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:56,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:56,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:56,371 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:56,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 10:56:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:56,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:56:56,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:56,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:56,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:56,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:56,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759872253] [2023-12-25 10:56:56,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759872253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:56,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:56,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:56:56,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441244689] [2023-12-25 10:56:56,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:56,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:56:56,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:56,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:56:56,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:56,508 INFO L87 Difference]: Start difference. First operand 3510 states and 5301 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:56,544 INFO L93 Difference]: Finished difference Result 9914 states and 14967 transitions. [2023-12-25 10:56:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:56:56,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-25 10:56:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:56,560 INFO L225 Difference]: With dead ends: 9914 [2023-12-25 10:56:56,561 INFO L226 Difference]: Without dead ends: 6456 [2023-12-25 10:56:56,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:56:56,565 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 83 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:56,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 378 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:56:56,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6456 states. [2023-12-25 10:56:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6456 to 6454. [2023-12-25 10:56:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 6453 states have (on average 1.4958933829226717) internal successors, (9653), 6453 states have internal predecessors, (9653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:56,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9653 transitions. [2023-12-25 10:56:56,652 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9653 transitions. Word has length 91 [2023-12-25 10:56:56,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:56,652 INFO L495 AbstractCegarLoop]: Abstraction has 6454 states and 9653 transitions. [2023-12-25 10:56:56,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9653 transitions. [2023-12-25 10:56:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 10:56:56,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:56,653 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] [2023-12-25 10:56:56,658 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 (12)] Ended with exit code 0 [2023-12-25 10:56:56,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:56,856 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:56,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:56,856 INFO L85 PathProgramCache]: Analyzing trace with hash 564564908, now seen corresponding path program 1 times [2023-12-25 10:56:56,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:56,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264694526] [2023-12-25 10:56:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:56,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:56,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:56,858 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:56,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 10:56:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:56,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:56:56,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:57,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:57,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:57,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264694526] [2023-12-25 10:56:57,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264694526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:57,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:57,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:56:57,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088083096] [2023-12-25 10:56:57,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:57,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:56:57,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:57,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:56:57,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:56:57,293 INFO L87 Difference]: Start difference. First operand 6454 states and 9653 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:57,405 INFO L93 Difference]: Finished difference Result 12856 states and 19254 transitions. [2023-12-25 10:56:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:56:57,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-25 10:56:57,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:57,429 INFO L225 Difference]: With dead ends: 12856 [2023-12-25 10:56:57,429 INFO L226 Difference]: Without dead ends: 6454 [2023-12-25 10:56:57,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:56:57,435 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 235 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:57,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 161 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:56:57,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2023-12-25 10:56:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 6454. [2023-12-25 10:56:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 6453 states have (on average 1.4859755152642182) internal successors, (9589), 6453 states have internal predecessors, (9589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9589 transitions. [2023-12-25 10:56:57,523 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9589 transitions. Word has length 92 [2023-12-25 10:56:57,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:57,524 INFO L495 AbstractCegarLoop]: Abstraction has 6454 states and 9589 transitions. [2023-12-25 10:56:57,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:57,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9589 transitions. [2023-12-25 10:56:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 10:56:57,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:57,524 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] [2023-12-25 10:56:57,531 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 (13)] Ended with exit code 0 [2023-12-25 10:56:57,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:57,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:56:57,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:56:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1838432913, now seen corresponding path program 1 times [2023-12-25 10:56:57,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:56:57,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385297085] [2023-12-25 10:56:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:56:57,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:56:57,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:56:57,742 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:56:57,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 10:56:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:56:57,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:56:57,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:56:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:56:59,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:56:59,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:56:59,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385297085] [2023-12-25 10:56:59,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385297085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:56:59,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:56:59,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:56:59,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097140650] [2023-12-25 10:56:59,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:56:59,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:56:59,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:56:59,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:56:59,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:56:59,013 INFO L87 Difference]: Start difference. First operand 6454 states and 9589 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:59,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:56:59,394 INFO L93 Difference]: Finished difference Result 57670 states and 85885 transitions. [2023-12-25 10:56:59,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:56:59,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-25 10:56:59,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:56:59,467 INFO L225 Difference]: With dead ends: 57670 [2023-12-25 10:56:59,467 INFO L226 Difference]: Without dead ends: 51268 [2023-12-25 10:56:59,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:56:59,483 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1265 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:56:59,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1522 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:56:59,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51268 states. [2023-12-25 10:56:59,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51268 to 19254. [2023-12-25 10:56:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19254 states, 19253 states have (on average 1.4687061756609359) internal successors, (28277), 19253 states have internal predecessors, (28277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19254 states to 19254 states and 28277 transitions. [2023-12-25 10:56:59,995 INFO L78 Accepts]: Start accepts. Automaton has 19254 states and 28277 transitions. Word has length 92 [2023-12-25 10:56:59,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:56:59,995 INFO L495 AbstractCegarLoop]: Abstraction has 19254 states and 28277 transitions. [2023-12-25 10:56:59,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:56:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 19254 states and 28277 transitions. [2023-12-25 10:56:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 10:56:59,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:56:59,997 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] [2023-12-25 10:57:00,000 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 [2023-12-25 10:57:00,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:00,200 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:00,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:00,201 INFO L85 PathProgramCache]: Analyzing trace with hash 580652461, now seen corresponding path program 1 times [2023-12-25 10:57:00,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:00,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240682725] [2023-12-25 10:57:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:00,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:00,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:00,202 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:00,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 10:57:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:00,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:57:00,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:00,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:00,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240682725] [2023-12-25 10:57:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240682725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:00,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:00,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:57:00,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943998201] [2023-12-25 10:57:00,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:00,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:57:00,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:00,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:57:00,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:00,419 INFO L87 Difference]: Start difference. First operand 19254 states and 28277 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:00,512 INFO L93 Difference]: Finished difference Result 47804 states and 70169 transitions. [2023-12-25 10:57:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:57:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-25 10:57:00,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:00,547 INFO L225 Difference]: With dead ends: 47804 [2023-12-25 10:57:00,548 INFO L226 Difference]: Without dead ends: 28602 [2023-12-25 10:57:00,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:00,568 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 73 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 337 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 [2023-12-25 10:57:00,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 337 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:57:00,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28602 states. [2023-12-25 10:57:00,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28602 to 28600. [2023-12-25 10:57:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28600 states, 28599 states have (on average 1.4554005384803665) internal successors, (41623), 28599 states have internal predecessors, (41623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28600 states to 28600 states and 41623 transitions. [2023-12-25 10:57:01,160 INFO L78 Accepts]: Start accepts. Automaton has 28600 states and 41623 transitions. Word has length 94 [2023-12-25 10:57:01,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:01,160 INFO L495 AbstractCegarLoop]: Abstraction has 28600 states and 41623 transitions. [2023-12-25 10:57:01,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:01,160 INFO L276 IsEmpty]: Start isEmpty. Operand 28600 states and 41623 transitions. [2023-12-25 10:57:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 10:57:01,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:01,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:01,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:01,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:01,364 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:01,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1469530140, now seen corresponding path program 1 times [2023-12-25 10:57:01,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:01,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256078668] [2023-12-25 10:57:01,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:01,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:01,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:01,366 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:01,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 10:57:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:01,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 10:57:01,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:01,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:01,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:01,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256078668] [2023-12-25 10:57:01,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256078668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:01,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:01,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:57:01,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061872749] [2023-12-25 10:57:01,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:01,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 10:57:01,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:01,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 10:57:01,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 10:57:01,493 INFO L87 Difference]: Start difference. First operand 28600 states and 41623 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:01,629 INFO L93 Difference]: Finished difference Result 52198 states and 75693 transitions. [2023-12-25 10:57:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:57:01,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-25 10:57:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:01,807 INFO L225 Difference]: With dead ends: 52198 [2023-12-25 10:57:01,807 INFO L226 Difference]: Without dead ends: 52196 [2023-12-25 10:57:01,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:57:01,817 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 228 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:01,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 567 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:57:01,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52196 states. [2023-12-25 10:57:02,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52196 to 29496. [2023-12-25 10:57:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29496 states, 29495 states have (on average 1.439396507882692) internal successors, (42455), 29495 states have internal predecessors, (42455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29496 states to 29496 states and 42455 transitions. [2023-12-25 10:57:02,381 INFO L78 Accepts]: Start accepts. Automaton has 29496 states and 42455 transitions. Word has length 95 [2023-12-25 10:57:02,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:02,381 INFO L495 AbstractCegarLoop]: Abstraction has 29496 states and 42455 transitions. [2023-12-25 10:57:02,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:02,381 INFO L276 IsEmpty]: Start isEmpty. Operand 29496 states and 42455 transitions. [2023-12-25 10:57:02,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:57:02,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:02,386 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:02,409 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 [2023-12-25 10:57:02,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:02,589 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:02,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:02,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2086990711, now seen corresponding path program 1 times [2023-12-25 10:57:02,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:02,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6432095] [2023-12-25 10:57:02,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:02,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:02,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:02,591 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:02,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 10:57:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:02,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:02,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:03,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:03,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:03,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6432095] [2023-12-25 10:57:03,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6432095] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:03,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:03,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:03,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019492630] [2023-12-25 10:57:03,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:03,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:03,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:03,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:03,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:03,781 INFO L87 Difference]: Start difference. First operand 29496 states and 42455 transitions. Second operand has 16 states, 16 states have (on average 14.5) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:09,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:09,715 INFO L93 Difference]: Finished difference Result 239283 states and 341420 transitions. [2023-12-25 10:57:09,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-12-25 10:57:09,716 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 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 129 [2023-12-25 10:57:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:10,135 INFO L225 Difference]: With dead ends: 239283 [2023-12-25 10:57:10,135 INFO L226 Difference]: Without dead ends: 209841 [2023-12-25 10:57:10,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3659 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2242, Invalid=7858, Unknown=0, NotChecked=0, Total=10100 [2023-12-25 10:57:10,215 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 8814 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8814 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:10,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8814 Valid, 2290 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 10:57:10,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209841 states. [2023-12-25 10:57:11,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209841 to 50712. [2023-12-25 10:57:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50712 states, 50711 states have (on average 1.4278361696673305) internal successors, (72407), 50711 states have internal predecessors, (72407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50712 states to 50712 states and 72407 transitions. [2023-12-25 10:57:11,725 INFO L78 Accepts]: Start accepts. Automaton has 50712 states and 72407 transitions. Word has length 129 [2023-12-25 10:57:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:11,725 INFO L495 AbstractCegarLoop]: Abstraction has 50712 states and 72407 transitions. [2023-12-25 10:57:11,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 50712 states and 72407 transitions. [2023-12-25 10:57:11,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:57:11,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:11,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:11,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-25 10:57:11,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:11,956 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:11,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1020070641, now seen corresponding path program 1 times [2023-12-25 10:57:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283264442] [2023-12-25 10:57:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:11,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:11,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:11,959 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:11,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 10:57:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:12,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:12,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:12,579 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:12,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:12,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:12,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283264442] [2023-12-25 10:57:12,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283264442] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:12,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:12,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:12,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662069719] [2023-12-25 10:57:12,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:12,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:12,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:12,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:12,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:12,888 INFO L87 Difference]: Start difference. First operand 50712 states and 72407 transitions. Second operand has 16 states, 16 states have (on average 14.125) internal successors, (226), 15 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:15,248 INFO L93 Difference]: Finished difference Result 168240 states and 238892 transitions. [2023-12-25 10:57:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-25 10:57:15,249 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.125) internal successors, (226), 15 states have internal predecessors, (226), 0 states have call successors, (0), 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 129 [2023-12-25 10:57:15,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:15,399 INFO L225 Difference]: With dead ends: 168240 [2023-12-25 10:57:15,400 INFO L226 Difference]: Without dead ends: 127054 [2023-12-25 10:57:15,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=638, Invalid=1912, Unknown=0, NotChecked=0, Total=2550 [2023-12-25 10:57:15,435 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 3436 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:15,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3436 Valid, 1081 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 10:57:15,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127054 states. [2023-12-25 10:57:16,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127054 to 50712. [2023-12-25 10:57:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50712 states, 50711 states have (on average 1.4240500088738144) internal successors, (72215), 50711 states have internal predecessors, (72215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50712 states to 50712 states and 72215 transitions. [2023-12-25 10:57:16,469 INFO L78 Accepts]: Start accepts. Automaton has 50712 states and 72215 transitions. Word has length 129 [2023-12-25 10:57:16,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:16,469 INFO L495 AbstractCegarLoop]: Abstraction has 50712 states and 72215 transitions. [2023-12-25 10:57:16,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.125) internal successors, (226), 15 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 50712 states and 72215 transitions. [2023-12-25 10:57:16,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:57:16,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:16,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:16,496 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 [2023-12-25 10:57:16,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:16,681 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:16,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1568856797, now seen corresponding path program 1 times [2023-12-25 10:57:16,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:16,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955100516] [2023-12-25 10:57:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:16,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:16,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:16,683 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:16,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 10:57:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:16,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:57:16,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:16,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:16,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:16,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955100516] [2023-12-25 10:57:16,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955100516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:16,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:16,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:57:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595216500] [2023-12-25 10:57:16,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:16,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:57:16,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:16,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:57:16,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:16,831 INFO L87 Difference]: Start difference. First operand 50712 states and 72215 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:17,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:17,176 INFO L93 Difference]: Finished difference Result 101372 states and 144377 transitions. [2023-12-25 10:57:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:57:17,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2023-12-25 10:57:17,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:17,230 INFO L225 Difference]: With dead ends: 101372 [2023-12-25 10:57:17,230 INFO L226 Difference]: Without dead ends: 50714 [2023-12-25 10:57:17,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:17,260 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 76 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:17,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 392 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:57:17,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50714 states. [2023-12-25 10:57:17,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50714 to 50712. [2023-12-25 10:57:17,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50712 states, 50711 states have (on average 1.4089053656997497) internal successors, (71447), 50711 states have internal predecessors, (71447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50712 states to 50712 states and 71447 transitions. [2023-12-25 10:57:17,985 INFO L78 Accepts]: Start accepts. Automaton has 50712 states and 71447 transitions. Word has length 130 [2023-12-25 10:57:17,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:17,985 INFO L495 AbstractCegarLoop]: Abstraction has 50712 states and 71447 transitions. [2023-12-25 10:57:17,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:17,985 INFO L276 IsEmpty]: Start isEmpty. Operand 50712 states and 71447 transitions. [2023-12-25 10:57:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:57:17,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:17,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:18,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:18,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:18,193 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:18,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1730426973, now seen corresponding path program 1 times [2023-12-25 10:57:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:18,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852114526] [2023-12-25 10:57:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:18,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:18,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:18,195 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:18,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 10:57:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:18,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:18,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:19,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:19,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:19,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852114526] [2023-12-25 10:57:19,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852114526] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:19,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:19,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:19,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747546269] [2023-12-25 10:57:19,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:19,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:19,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:19,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:19,460 INFO L87 Difference]: Start difference. First operand 50712 states and 71447 transitions. Second operand has 16 states, 16 states have (on average 14.875) internal successors, (238), 15 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:21,779 INFO L93 Difference]: Finished difference Result 176421 states and 248030 transitions. [2023-12-25 10:57:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-25 10:57:21,804 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.875) internal successors, (238), 15 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-25 10:57:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:21,949 INFO L225 Difference]: With dead ends: 176421 [2023-12-25 10:57:21,950 INFO L226 Difference]: Without dead ends: 125763 [2023-12-25 10:57:21,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=412, Invalid=1148, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 10:57:21,998 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 3533 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3533 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:21,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3533 Valid, 1401 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 10:57:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125763 states. [2023-12-25 10:57:22,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125763 to 50712. [2023-12-25 10:57:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50712 states, 50711 states have (on average 1.4041726647078543) internal successors, (71207), 50711 states have internal predecessors, (71207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:22,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50712 states to 50712 states and 71207 transitions. [2023-12-25 10:57:22,998 INFO L78 Accepts]: Start accepts. Automaton has 50712 states and 71207 transitions. Word has length 130 [2023-12-25 10:57:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:22,998 INFO L495 AbstractCegarLoop]: Abstraction has 50712 states and 71207 transitions. [2023-12-25 10:57:22,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.875) internal successors, (238), 15 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:22,999 INFO L276 IsEmpty]: Start isEmpty. Operand 50712 states and 71207 transitions. [2023-12-25 10:57:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:57:23,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:23,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:23,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:23,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:23,223 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:23,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1447880688, now seen corresponding path program 1 times [2023-12-25 10:57:23,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:23,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571034763] [2023-12-25 10:57:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:23,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:23,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:23,225 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:23,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 10:57:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:23,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:23,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:24,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:24,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:24,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571034763] [2023-12-25 10:57:24,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571034763] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:24,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:24,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:24,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525445849] [2023-12-25 10:57:24,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:24,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:24,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:24,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:24,576 INFO L87 Difference]: Start difference. First operand 50712 states and 71207 transitions. Second operand has 16 states, 16 states have (on average 15.25) internal successors, (244), 15 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:28,621 INFO L93 Difference]: Finished difference Result 238479 states and 332455 transitions. [2023-12-25 10:57:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-25 10:57:28,622 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.25) internal successors, (244), 15 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-25 10:57:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:28,836 INFO L225 Difference]: With dead ends: 238479 [2023-12-25 10:57:28,836 INFO L226 Difference]: Without dead ends: 187821 [2023-12-25 10:57:28,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1256 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1207, Invalid=3485, Unknown=0, NotChecked=0, Total=4692 [2023-12-25 10:57:28,888 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 4737 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4737 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:28,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4737 Valid, 1656 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 10:57:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187821 states. [2023-12-25 10:57:30,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187821 to 52392. [2023-12-25 10:57:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52392 states, 52391 states have (on average 1.3957931705827338) internal successors, (73127), 52391 states have internal predecessors, (73127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52392 states to 52392 states and 73127 transitions. [2023-12-25 10:57:30,387 INFO L78 Accepts]: Start accepts. Automaton has 52392 states and 73127 transitions. Word has length 131 [2023-12-25 10:57:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:30,387 INFO L495 AbstractCegarLoop]: Abstraction has 52392 states and 73127 transitions. [2023-12-25 10:57:30,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.25) internal successors, (244), 15 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 52392 states and 73127 transitions. [2023-12-25 10:57:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 10:57:30,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:30,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:30,398 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:30,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:30,595 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:30,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:30,595 INFO L85 PathProgramCache]: Analyzing trace with hash 832183888, now seen corresponding path program 1 times [2023-12-25 10:57:30,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:30,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155233039] [2023-12-25 10:57:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:30,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:30,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:30,597 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:30,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 10:57:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:30,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:57:30,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:30,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:30,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:30,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155233039] [2023-12-25 10:57:30,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155233039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:30,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:30,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:57:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859761390] [2023-12-25 10:57:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:30,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:57:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:57:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:30,778 INFO L87 Difference]: Start difference. First operand 52392 states and 73127 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:30,940 INFO L93 Difference]: Finished difference Result 78564 states and 109665 transitions. [2023-12-25 10:57:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:57:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2023-12-25 10:57:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:30,974 INFO L225 Difference]: With dead ends: 78564 [2023-12-25 10:57:30,975 INFO L226 Difference]: Without dead ends: 26226 [2023-12-25 10:57:31,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:31,004 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 69 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:31,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 376 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:57:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26226 states. [2023-12-25 10:57:31,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26226 to 26224. [2023-12-25 10:57:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26224 states, 26223 states have (on average 1.3816496968310261) internal successors, (36231), 26223 states have internal predecessors, (36231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26224 states to 26224 states and 36231 transitions. [2023-12-25 10:57:31,489 INFO L78 Accepts]: Start accepts. Automaton has 26224 states and 36231 transitions. Word has length 132 [2023-12-25 10:57:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:31,489 INFO L495 AbstractCegarLoop]: Abstraction has 26224 states and 36231 transitions. [2023-12-25 10:57:31,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 26224 states and 36231 transitions. [2023-12-25 10:57:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 10:57:31,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:31,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:31,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:31,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:31,695 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:31,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash -427185968, now seen corresponding path program 1 times [2023-12-25 10:57:31,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:31,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938002581] [2023-12-25 10:57:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:31,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:31,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:31,697 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:31,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 10:57:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:31,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:31,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:32,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:33,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:33,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938002581] [2023-12-25 10:57:33,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938002581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:33,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:33,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:33,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646010579] [2023-12-25 10:57:33,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:33,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:33,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:33,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:33,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:33,099 INFO L87 Difference]: Start difference. First operand 26224 states and 36231 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 15 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:35,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:35,331 INFO L93 Difference]: Finished difference Result 91625 states and 126348 transitions. [2023-12-25 10:57:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-25 10:57:35,333 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 15 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2023-12-25 10:57:35,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:35,393 INFO L225 Difference]: With dead ends: 91625 [2023-12-25 10:57:35,394 INFO L226 Difference]: Without dead ends: 65455 [2023-12-25 10:57:35,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=412, Invalid=1148, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 10:57:35,412 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 2171 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:35,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 1484 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 10:57:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65455 states. [2023-12-25 10:57:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65455 to 26224. [2023-12-25 10:57:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26224 states, 26223 states have (on average 1.3770735613774168) internal successors, (36111), 26223 states have internal predecessors, (36111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26224 states to 26224 states and 36111 transitions. [2023-12-25 10:57:35,926 INFO L78 Accepts]: Start accepts. Automaton has 26224 states and 36111 transitions. Word has length 132 [2023-12-25 10:57:35,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:35,927 INFO L495 AbstractCegarLoop]: Abstraction has 26224 states and 36111 transitions. [2023-12-25 10:57:35,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 15 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 26224 states and 36111 transitions. [2023-12-25 10:57:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 10:57:35,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:35,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:35,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:36,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:36,138 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:36,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -994533585, now seen corresponding path program 1 times [2023-12-25 10:57:36,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:36,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322230398] [2023-12-25 10:57:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:36,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:36,141 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:36,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 10:57:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:36,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:36,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:37,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:37,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:37,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:37,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322230398] [2023-12-25 10:57:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322230398] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:37,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:37,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928574409] [2023-12-25 10:57:37,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:37,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:37,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:37,340 INFO L87 Difference]: Start difference. First operand 26224 states and 36111 transitions. Second operand has 16 states, 16 states have (on average 16.0) internal successors, (256), 15 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) [2023-12-25 10:57:40,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:40,979 INFO L93 Difference]: Finished difference Result 116899 states and 160045 transitions. [2023-12-25 10:57:40,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-25 10:57:40,979 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.0) internal successors, (256), 15 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 133 [2023-12-25 10:57:40,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:41,076 INFO L225 Difference]: With dead ends: 116899 [2023-12-25 10:57:41,076 INFO L226 Difference]: Without dead ends: 90729 [2023-12-25 10:57:41,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1256 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1207, Invalid=3485, Unknown=0, NotChecked=0, Total=4692 [2023-12-25 10:57:41,112 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 2604 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:41,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2604 Valid, 1653 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 10:57:41,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90729 states. [2023-12-25 10:57:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90729 to 27064. [2023-12-25 10:57:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27064 states, 27063 states have (on average 1.369803791153974) internal successors, (37071), 27063 states have internal predecessors, (37071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27064 states to 27064 states and 37071 transitions. [2023-12-25 10:57:41,864 INFO L78 Accepts]: Start accepts. Automaton has 27064 states and 37071 transitions. Word has length 133 [2023-12-25 10:57:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:41,868 INFO L495 AbstractCegarLoop]: Abstraction has 27064 states and 37071 transitions. [2023-12-25 10:57:41,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.0) internal successors, (256), 15 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) [2023-12-25 10:57:41,868 INFO L276 IsEmpty]: Start isEmpty. Operand 27064 states and 37071 transitions. [2023-12-25 10:57:41,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 10:57:41,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:41,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:41,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:42,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:42,073 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:42,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1354093221, now seen corresponding path program 1 times [2023-12-25 10:57:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:42,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259905991] [2023-12-25 10:57:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:42,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:42,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:42,076 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:42,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 10:57:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:42,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:57:42,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:42,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:42,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:42,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259905991] [2023-12-25 10:57:42,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259905991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:42,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:42,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:57:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474963944] [2023-12-25 10:57:42,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:42,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:57:42,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:57:42,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:42,231 INFO L87 Difference]: Start difference. First operand 27064 states and 37071 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:42,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:42,303 INFO L93 Difference]: Finished difference Result 40572 states and 55581 transitions. [2023-12-25 10:57:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:57:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-25 10:57:42,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:42,318 INFO L225 Difference]: With dead ends: 40572 [2023-12-25 10:57:42,318 INFO L226 Difference]: Without dead ends: 13562 [2023-12-25 10:57:42,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:57:42,333 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 61 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:42,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 360 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:57:42,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13562 states. [2023-12-25 10:57:42,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13562 to 13560. [2023-12-25 10:57:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13560 states, 13559 states have (on average 1.3557784497381813) internal successors, (18383), 13559 states have internal predecessors, (18383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13560 states to 13560 states and 18383 transitions. [2023-12-25 10:57:42,439 INFO L78 Accepts]: Start accepts. Automaton has 13560 states and 18383 transitions. Word has length 134 [2023-12-25 10:57:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:42,440 INFO L495 AbstractCegarLoop]: Abstraction has 13560 states and 18383 transitions. [2023-12-25 10:57:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13560 states and 18383 transitions. [2023-12-25 10:57:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 10:57:42,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:42,442 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:42,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:42,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:42,647 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:42,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash -385751845, now seen corresponding path program 1 times [2023-12-25 10:57:42,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:42,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863180795] [2023-12-25 10:57:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:42,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:42,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:42,649 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:42,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 10:57:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:42,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:42,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:43,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:57:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:57:43,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:43,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863180795] [2023-12-25 10:57:43,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863180795] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:57:43,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:57:43,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:57:43,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978770283] [2023-12-25 10:57:43,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:57:43,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:57:43,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:43,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:57:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:57:43,745 INFO L87 Difference]: Start difference. First operand 13560 states and 18383 transitions. Second operand has 16 states, 16 states have (on average 16.375) internal successors, (262), 15 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) [2023-12-25 10:57:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:45,787 INFO L93 Difference]: Finished difference Result 47553 states and 64279 transitions. [2023-12-25 10:57:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-25 10:57:45,788 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.375) internal successors, (262), 15 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 134 [2023-12-25 10:57:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:45,821 INFO L225 Difference]: With dead ends: 47553 [2023-12-25 10:57:45,821 INFO L226 Difference]: Without dead ends: 34047 [2023-12-25 10:57:45,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=412, Invalid=1148, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 10:57:45,835 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 2234 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:45,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2234 Valid, 1467 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 10:57:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34047 states. [2023-12-25 10:57:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34047 to 13560. [2023-12-25 10:57:46,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13560 states, 13559 states have (on average 1.3425031344494431) internal successors, (18203), 13559 states have internal predecessors, (18203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13560 states to 13560 states and 18203 transitions. [2023-12-25 10:57:46,041 INFO L78 Accepts]: Start accepts. Automaton has 13560 states and 18203 transitions. Word has length 134 [2023-12-25 10:57:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:46,041 INFO L495 AbstractCegarLoop]: Abstraction has 13560 states and 18203 transitions. [2023-12-25 10:57:46,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.375) internal successors, (262), 15 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) [2023-12-25 10:57:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 13560 states and 18203 transitions. [2023-12-25 10:57:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:57:46,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:46,043 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:46,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:46,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:46,246 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:46,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 373674470, now seen corresponding path program 1 times [2023-12-25 10:57:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993195201] [2023-12-25 10:57:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:46,248 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:46,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 10:57:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:46,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:46,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:57:47,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:47,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:47,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993195201] [2023-12-25 10:57:47,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993195201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:47,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:47,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:57:47,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200965807] [2023-12-25 10:57:47,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:47,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:57:47,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:47,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:57:47,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:47,693 INFO L87 Difference]: Start difference. First operand 13560 states and 18203 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:47,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:47,920 INFO L93 Difference]: Finished difference Result 47152 states and 63743 transitions. [2023-12-25 10:57:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:57:47,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:57:47,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:47,961 INFO L225 Difference]: With dead ends: 47152 [2023-12-25 10:57:47,961 INFO L226 Difference]: Without dead ends: 43494 [2023-12-25 10:57:47,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:47,975 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 921 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:47,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 1303 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:57:47,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43494 states. [2023-12-25 10:57:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43494 to 21712. [2023-12-25 10:57:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21712 states, 21711 states have (on average 1.3312606512827598) internal successors, (28903), 21711 states have internal predecessors, (28903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21712 states to 21712 states and 28903 transitions. [2023-12-25 10:57:48,227 INFO L78 Accepts]: Start accepts. Automaton has 21712 states and 28903 transitions. Word has length 135 [2023-12-25 10:57:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:48,228 INFO L495 AbstractCegarLoop]: Abstraction has 21712 states and 28903 transitions. [2023-12-25 10:57:48,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 21712 states and 28903 transitions. [2023-12-25 10:57:48,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:57:48,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:48,230 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:48,235 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 (27)] Ended with exit code 0 [2023-12-25 10:57:48,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:48,433 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:48,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:48,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1206889597, now seen corresponding path program 1 times [2023-12-25 10:57:48,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:48,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044740492] [2023-12-25 10:57:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:48,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:48,434 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:48,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 10:57:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:48,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:48,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 10:57:50,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:50,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044740492] [2023-12-25 10:57:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044740492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:50,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:57:50,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192765912] [2023-12-25 10:57:50,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:50,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:57:50,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:50,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:57:50,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:50,067 INFO L87 Difference]: Start difference. First operand 21712 states and 28903 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:50,352 INFO L93 Difference]: Finished difference Result 52504 states and 70807 transitions. [2023-12-25 10:57:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:57:50,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:57:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:50,398 INFO L225 Difference]: With dead ends: 52504 [2023-12-25 10:57:50,399 INFO L226 Difference]: Without dead ends: 47974 [2023-12-25 10:57:50,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:50,414 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1012 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:50,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1326 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:57:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47974 states. [2023-12-25 10:57:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47974 to 26192. [2023-12-25 10:57:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26192 states, 26191 states have (on average 1.328204345004009) internal successors, (34787), 26191 states have internal predecessors, (34787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26192 states to 26192 states and 34787 transitions. [2023-12-25 10:57:50,755 INFO L78 Accepts]: Start accepts. Automaton has 26192 states and 34787 transitions. Word has length 135 [2023-12-25 10:57:50,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:50,755 INFO L495 AbstractCegarLoop]: Abstraction has 26192 states and 34787 transitions. [2023-12-25 10:57:50,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:50,755 INFO L276 IsEmpty]: Start isEmpty. Operand 26192 states and 34787 transitions. [2023-12-25 10:57:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:57:50,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:50,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:50,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:50,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:50,961 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:50,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash -6065498, now seen corresponding path program 1 times [2023-12-25 10:57:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:50,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203629816] [2023-12-25 10:57:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:50,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:50,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:50,962 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:50,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 10:57:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:51,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:51,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 10:57:52,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:52,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:52,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203629816] [2023-12-25 10:57:52,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203629816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:52,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:52,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:57:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226252144] [2023-12-25 10:57:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:52,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:57:52,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:57:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:52,683 INFO L87 Difference]: Start difference. First operand 26192 states and 34787 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:52,945 INFO L93 Difference]: Finished difference Result 56984 states and 76691 transitions. [2023-12-25 10:57:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:57:52,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:57:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:53,007 INFO L225 Difference]: With dead ends: 56984 [2023-12-25 10:57:53,007 INFO L226 Difference]: Without dead ends: 52454 [2023-12-25 10:57:53,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:53,026 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1031 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:53,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1244 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:57:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52454 states. [2023-12-25 10:57:53,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52454 to 30672. [2023-12-25 10:57:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30672 states, 30671 states have (on average 1.3260408855270451) internal successors, (40671), 30671 states have internal predecessors, (40671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30672 states to 30672 states and 40671 transitions. [2023-12-25 10:57:53,513 INFO L78 Accepts]: Start accepts. Automaton has 30672 states and 40671 transitions. Word has length 135 [2023-12-25 10:57:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:53,514 INFO L495 AbstractCegarLoop]: Abstraction has 30672 states and 40671 transitions. [2023-12-25 10:57:53,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 30672 states and 40671 transitions. [2023-12-25 10:57:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:57:53,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:53,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:53,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:53,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:53,724 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:53,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:53,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1306077987, now seen corresponding path program 1 times [2023-12-25 10:57:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:53,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507126608] [2023-12-25 10:57:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:53,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:53,726 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:53,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 10:57:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:53,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:53,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 10:57:55,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:55,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:55,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507126608] [2023-12-25 10:57:55,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507126608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:55,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:55,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:57:55,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336581702] [2023-12-25 10:57:55,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:55,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:57:55,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:57:55,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:55,282 INFO L87 Difference]: Start difference. First operand 30672 states and 40671 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:55,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:55,540 INFO L93 Difference]: Finished difference Result 61464 states and 82575 transitions. [2023-12-25 10:57:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:57:55,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:57:55,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:55,606 INFO L225 Difference]: With dead ends: 61464 [2023-12-25 10:57:55,606 INFO L226 Difference]: Without dead ends: 56934 [2023-12-25 10:57:55,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:55,626 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 849 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:55,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1476 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:57:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56934 states. [2023-12-25 10:57:56,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56934 to 35152. [2023-12-25 10:57:56,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35152 states, 35151 states have (on average 1.32442889249239) internal successors, (46555), 35151 states have internal predecessors, (46555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:56,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35152 states to 35152 states and 46555 transitions. [2023-12-25 10:57:56,333 INFO L78 Accepts]: Start accepts. Automaton has 35152 states and 46555 transitions. Word has length 135 [2023-12-25 10:57:56,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:56,334 INFO L495 AbstractCegarLoop]: Abstraction has 35152 states and 46555 transitions. [2023-12-25 10:57:56,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:56,334 INFO L276 IsEmpty]: Start isEmpty. Operand 35152 states and 46555 transitions. [2023-12-25 10:57:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:57:56,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:56,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:56,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:56,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:56,541 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:56,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:56,543 INFO L85 PathProgramCache]: Analyzing trace with hash 27223814, now seen corresponding path program 1 times [2023-12-25 10:57:56,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:56,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460022818] [2023-12-25 10:57:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:56,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:56,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:56,545 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:56,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 10:57:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:56,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:56,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:57:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 10:57:57,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:57:57,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:57:57,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460022818] [2023-12-25 10:57:57,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460022818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:57:57,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:57:57,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:57:57,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134155641] [2023-12-25 10:57:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:57:57,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:57:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:57:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:57:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:57,849 INFO L87 Difference]: Start difference. First operand 35152 states and 46555 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:58,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:57:58,112 INFO L93 Difference]: Finished difference Result 65944 states and 88459 transitions. [2023-12-25 10:57:58,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:57:58,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:57:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:57:58,169 INFO L225 Difference]: With dead ends: 65944 [2023-12-25 10:57:58,169 INFO L226 Difference]: Without dead ends: 52438 [2023-12-25 10:57:58,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:57:58,190 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 959 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:57:58,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1257 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:57:58,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52438 states. [2023-12-25 10:57:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52438 to 30656. [2023-12-25 10:57:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30656 states, 30655 states have (on average 1.3194258685369433) internal successors, (40447), 30655 states have internal predecessors, (40447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30656 states to 30656 states and 40447 transitions. [2023-12-25 10:57:58,868 INFO L78 Accepts]: Start accepts. Automaton has 30656 states and 40447 transitions. Word has length 135 [2023-12-25 10:57:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:57:58,869 INFO L495 AbstractCegarLoop]: Abstraction has 30656 states and 40447 transitions. [2023-12-25 10:57:58,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:57:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 30656 states and 40447 transitions. [2023-12-25 10:57:58,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:57:58,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:57:58,872 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:57:58,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-25 10:57:59,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:59,075 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:57:59,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:57:59,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1604818502, now seen corresponding path program 1 times [2023-12-25 10:57:59,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:57:59,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022221412] [2023-12-25 10:57:59,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:57:59,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:57:59,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:57:59,077 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:57:59,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 10:57:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:57:59,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:57:59,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:58:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 10:58:00,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:58:00,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:58:00,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022221412] [2023-12-25 10:58:00,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022221412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:58:00,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:58:00,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:58:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444734223] [2023-12-25 10:58:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:58:00,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:58:00,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:58:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:58:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:58:00,514 INFO L87 Difference]: Start difference. First operand 30656 states and 40447 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:00,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:58:00,753 INFO L93 Difference]: Finished difference Result 61448 states and 82351 transitions. [2023-12-25 10:58:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:58:00,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:58:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:58:00,814 INFO L225 Difference]: With dead ends: 61448 [2023-12-25 10:58:00,815 INFO L226 Difference]: Without dead ends: 56918 [2023-12-25 10:58:00,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:58:00,833 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 796 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:58:00,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1590 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:58:00,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56918 states. [2023-12-25 10:58:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56918 to 35136. [2023-12-25 10:58:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35136 states, 35135 states have (on average 1.3186566102177315) internal successors, (46331), 35135 states have internal predecessors, (46331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35136 states to 35136 states and 46331 transitions. [2023-12-25 10:58:01,395 INFO L78 Accepts]: Start accepts. Automaton has 35136 states and 46331 transitions. Word has length 135 [2023-12-25 10:58:01,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:58:01,395 INFO L495 AbstractCegarLoop]: Abstraction has 35136 states and 46331 transitions. [2023-12-25 10:58:01,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:01,395 INFO L276 IsEmpty]: Start isEmpty. Operand 35136 states and 46331 transitions. [2023-12-25 10:58:01,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 10:58:01,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:58:01,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:58:01,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-25 10:58:01,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:58:01,602 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:58:01,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:58:01,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1865049059, now seen corresponding path program 1 times [2023-12-25 10:58:01,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:58:01,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485835626] [2023-12-25 10:58:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:58:01,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:58:01,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:58:01,604 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:58:01,607 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 (33)] Waiting until timeout for monitored process [2023-12-25 10:58:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:58:01,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:58:01,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:58:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 10:58:03,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:58:03,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:58:03,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485835626] [2023-12-25 10:58:03,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485835626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:58:03,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:58:03,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:58:03,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332824585] [2023-12-25 10:58:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:58:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:58:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:58:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:58:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:58:03,126 INFO L87 Difference]: Start difference. First operand 35136 states and 46331 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:03,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:58:03,534 INFO L93 Difference]: Finished difference Result 65928 states and 88235 transitions. [2023-12-25 10:58:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:58:03,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 10:58:03,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:58:03,595 INFO L225 Difference]: With dead ends: 65928 [2023-12-25 10:58:03,596 INFO L226 Difference]: Without dead ends: 61398 [2023-12-25 10:58:03,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:58:03,615 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 965 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:58:03,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1379 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:58:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61398 states. [2023-12-25 10:58:03,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61398 to 39616. [2023-12-25 10:58:03,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39616 states, 39615 states have (on average 1.318061340401363) internal successors, (52215), 39615 states have internal predecessors, (52215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39616 states to 39616 states and 52215 transitions. [2023-12-25 10:58:04,037 INFO L78 Accepts]: Start accepts. Automaton has 39616 states and 52215 transitions. Word has length 135 [2023-12-25 10:58:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:58:04,037 INFO L495 AbstractCegarLoop]: Abstraction has 39616 states and 52215 transitions. [2023-12-25 10:58:04,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 39616 states and 52215 transitions. [2023-12-25 10:58:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 10:58:04,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:58:04,041 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:58:04,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-25 10:58:04,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:58:04,244 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:58:04,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:58:04,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1267809784, now seen corresponding path program 1 times [2023-12-25 10:58:04,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:58:04,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929452557] [2023-12-25 10:58:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:58:04,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:58:04,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:58:04,245 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:58:04,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 10:58:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:58:04,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 10:58:04,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:58:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:58:04,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:58:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:58:04,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:58:04,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929452557] [2023-12-25 10:58:04,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929452557] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:58:04,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:58:04,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2023-12-25 10:58:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354799691] [2023-12-25 10:58:04,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:58:04,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:58:04,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:58:04,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:58:04,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:58:04,971 INFO L87 Difference]: Start difference. First operand 39616 states and 52215 transitions. Second operand has 16 states, 16 states have (on average 14.5625) internal successors, (233), 16 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:58:06,558 INFO L93 Difference]: Finished difference Result 177510 states and 232596 transitions. [2023-12-25 10:58:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-25 10:58:06,559 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.5625) internal successors, (233), 16 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-25 10:58:06,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:58:06,731 INFO L225 Difference]: With dead ends: 177510 [2023-12-25 10:58:06,731 INFO L226 Difference]: Without dead ends: 170196 [2023-12-25 10:58:06,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 10:58:06,759 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2356 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:58:06,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 3045 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:58:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170196 states. [2023-12-25 10:58:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170196 to 81980. [2023-12-25 10:58:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81980 states, 81979 states have (on average 1.3179838739189305) internal successors, (108047), 81979 states have internal predecessors, (108047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:08,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81980 states to 81980 states and 108047 transitions. [2023-12-25 10:58:08,225 INFO L78 Accepts]: Start accepts. Automaton has 81980 states and 108047 transitions. Word has length 136 [2023-12-25 10:58:08,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:58:08,225 INFO L495 AbstractCegarLoop]: Abstraction has 81980 states and 108047 transitions. [2023-12-25 10:58:08,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.5625) internal successors, (233), 16 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 10:58:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 81980 states and 108047 transitions. [2023-12-25 10:58:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 10:58:08,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:58:08,230 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:58:08,233 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 (34)] Ended with exit code 0 [2023-12-25 10:58:08,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:58:08,430 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 10:58:08,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:58:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1819831506, now seen corresponding path program 1 times [2023-12-25 10:58:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:58:08,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123715636] [2023-12-25 10:58:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:58:08,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:58:08,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:58:08,444 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:58:08,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-25 10:58:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:58:08,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-25 10:58:08,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:58:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:58:17,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:58:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:58:25,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:58:25,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123715636] [2023-12-25 10:58:25,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123715636] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:58:25,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:58:25,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 79 [2023-12-25 10:58:25,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435405044] [2023-12-25 10:58:25,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:58:25,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2023-12-25 10:58:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:58:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2023-12-25 10:58:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=5435, Unknown=0, NotChecked=0, Total=6162 [2023-12-25 10:58:25,774 INFO L87 Difference]: Start difference. First operand 81980 states and 108047 transitions. Second operand has 79 states, 79 states have (on average 3.3417721518987342) internal successors, (264), 79 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) Received shutdown request... [2023-12-25 11:11:19,378 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 [2023-12-25 11:11:19,379 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 (35)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 11:11:20,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-25 11:11:20,579 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-25 11:11:20,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-25 11:11:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 320 states. [2023-12-25 11:11:20,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53036 ImplicationChecksByTransitivity, 726.1s TimeCoverageRelationStatistics Valid=18191, Invalid=125070, Unknown=1, NotChecked=0, Total=143262 [2023-12-25 11:11:20,630 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 11103 mSDsluCounter, 8561 mSDsCounter, 0 mSdLazyCounter, 12746 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11103 SdHoareTripleChecker+Valid, 8822 SdHoareTripleChecker+Invalid, 13230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 12746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.7s IncrementalHoareTripleChecker+Time [2023-12-25 11:11:20,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11103 Valid, 8822 Invalid, 13230 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [484 Valid, 12746 Invalid, 0 Unknown, 0 Unchecked, 49.7s Time] [2023-12-25 11:11:20,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 11:11:20,632 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (81980states) and FLOYD_HOARE automaton (currently 320 states, 79 states before enhancement),while executing Executor. [2023-12-25 11:11:20,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:11:20,638 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 11:11:20,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 11:11:20 BoogieIcfgContainer [2023-12-25 11:11:20,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 11:11:20,640 INFO L158 Benchmark]: Toolchain (without parser) took 871539.59ms. Allocated memory was 272.6MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 220.0MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2023-12-25 11:11:20,640 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 226.5MB. Free memory is still 178.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 11:11:20,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.85ms. Allocated memory is still 272.6MB. Free memory was 219.8MB in the beginning and 198.5MB in the end (delta: 21.3MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-25 11:11:20,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.06ms. Allocated memory is still 272.6MB. Free memory was 198.5MB in the beginning and 195.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 11:11:20,640 INFO L158 Benchmark]: Boogie Preprocessor took 60.54ms. Allocated memory is still 272.6MB. Free memory was 195.7MB in the beginning and 191.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-25 11:11:20,641 INFO L158 Benchmark]: RCFGBuilder took 685.22ms. Allocated memory is still 272.6MB. Free memory was 191.7MB in the beginning and 197.7MB in the end (delta: -6.0MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2023-12-25 11:11:20,641 INFO L158 Benchmark]: TraceAbstraction took 870481.93ms. Allocated memory was 272.6MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 197.2MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2023-12-25 11:11:20,642 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 226.5MB. Free memory is still 178.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 273.85ms. Allocated memory is still 272.6MB. Free memory was 219.8MB in the beginning and 198.5MB in the end (delta: 21.3MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.06ms. Allocated memory is still 272.6MB. Free memory was 198.5MB in the beginning and 195.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.54ms. Allocated memory is still 272.6MB. Free memory was 195.7MB in the beginning and 191.7MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 685.22ms. Allocated memory is still 272.6MB. Free memory was 191.7MB in the beginning and 197.7MB in the end (delta: -6.0MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * TraceAbstraction took 870481.93ms. Allocated memory was 272.6MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 197.2MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 4.5GB. 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: 391]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 391). Cancelled while NwaCegarLoop was constructing difference of abstraction (81980states) and FLOYD_HOARE automaton (currently 320 states, 79 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 870.4s, OverallIterations: 34, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 805.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51576 SdHoareTripleChecker+Valid, 63.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51576 mSDsluCounter, 39536 SdHoareTripleChecker+Invalid, 58.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31322 mSDsCounter, 618 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23985 IncrementalHoareTripleChecker+Invalid, 24603 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 618 mSolverCounterUnsat, 8214 mSDtfsCounter, 23985 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5647 GetRequests, 4749 SyntacticMatches, 0 SemanticMatches, 897 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60848 ImplicationChecksByTransitivity, 737.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81980occurred in iteration=33, InterpolantAutomatonStates: 473, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.8s AutomataMinimizationTime, 33 MinimizatonAttempts, 864760 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 39.0s InterpolantComputationTime, 3874 NumberOfCodeBlocks, 3874 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 5021 ConstructedInterpolants, 1182 QuantifiedInterpolants, 69234 SizeOfPredicates, 152 NumberOfNonLiveVariables, 8165 ConjunctsInSsa, 229 ConjunctsInUnsatCore, 43 InterpolantComputations, 25 PerfectInterpolantSequences, 375/513 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