/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:19:20,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:19:20,310 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 01:19:20,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:19:20,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:19:20,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:19:20,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:19:20,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:19:20,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:19:20,348 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:19:20,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:19:20,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:19:20,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:19:20,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:19:20,351 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:19:20,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:19:20,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:19:20,351 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:19:20,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:19:20,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:19:20,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:19:20,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:19:20,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:19:20,353 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:19:20,353 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:19:20,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:19:20,353 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:19:20,354 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:19:20,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:19:20,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:19:20,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:19:20,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:19:20,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:19:20,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:19:20,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:19:20,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:19:20,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:19:20,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:19:20,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:19:20,357 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:19:20,357 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:19:20,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:19:20,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:19:20,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:19:20,612 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:19:20,612 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:19:20,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c [2023-12-22 01:19:21,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:19:22,238 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:19:22,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c [2023-12-22 01:19:22,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8a152e0/0bf2b2aaea4f4a6b9f770e581eeba4dd/FLAGe3c67c1b7 [2023-12-22 01:19:22,284 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8a152e0/0bf2b2aaea4f4a6b9f770e581eeba4dd [2023-12-22 01:19:22,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:19:22,288 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:19:22,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:19:22,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:19:22,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:19:22,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:19:22" (1/1) ... [2023-12-22 01:19:22,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5167a5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:22, skipping insertion in model container [2023-12-22 01:19:22,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:19:22" (1/1) ... [2023-12-22 01:19:22,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:19:22,800 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[15519,15532] [2023-12-22 01:19:22,875 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[23267,23280] [2023-12-22 01:19:23,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:19:23,502 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:19:23,547 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[15519,15532] [2023-12-22 01:19:23,558 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c[23267,23280] [2023-12-22 01:19:23,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:19:23,986 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:19:23,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23 WrapperNode [2023-12-22 01:19:23,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:19:23,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:19:23,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:19:23,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:19:23,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,186 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5126 [2023-12-22 01:19:24,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:19:24,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:19:24,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:19:24,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:19:24,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,316 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 01:19:24,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:19:24,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:19:24,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:19:24,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:19:24,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (1/1) ... [2023-12-22 01:19:24,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:19:24,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:19:24,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 01:19:24,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 01:19:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:19:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:19:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:19:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:19:24,804 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:19:24,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:19:49,068 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:19:49,132 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:19:49,132 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:19:49,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:19:49 BoogieIcfgContainer [2023-12-22 01:19:49,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:19:49,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:19:49,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:19:49,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:19:49,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:19:22" (1/3) ... [2023-12-22 01:19:49,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0ab1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:19:49, skipping insertion in model container [2023-12-22 01:19:49,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:19:23" (2/3) ... [2023-12-22 01:19:49,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0ab1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:19:49, skipping insertion in model container [2023-12-22 01:19:49,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:19:49" (3/3) ... [2023-12-22 01:19:49,139 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label09.c [2023-12-22 01:19:49,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:19:49,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:19:49,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:19:49,233 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;@60e6f6f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:19:49,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:19:49,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:19:49,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:49,252 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] [2023-12-22 01:19:49,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:49,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:49,259 INFO L85 PathProgramCache]: Analyzing trace with hash -304708079, now seen corresponding path program 1 times [2023-12-22 01:19:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:49,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855966664] [2023-12-22 01:19:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:49,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:49,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:49,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:49,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 01:19:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:49,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:19:49,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:49,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:49,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:49,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855966664] [2023-12-22 01:19:49,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855966664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:49,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:49,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:19:49,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876818681] [2023-12-22 01:19:49,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:49,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:19:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:49,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:19:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:19:49,443 INFO L87 Difference]: Start difference. First operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:49,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:49,587 INFO L93 Difference]: Finished difference Result 1654 states and 3254 transitions. [2023-12-22 01:19:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:19:49,598 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-22 01:19:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:49,621 INFO L225 Difference]: With dead ends: 1654 [2023-12-22 01:19:49,621 INFO L226 Difference]: Without dead ends: 845 [2023-12-22 01:19:49,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:19:49,629 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:49,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1599 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-22 01:19:49,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2023-12-22 01:19:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.896797153024911) internal successors, (1599), 844 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1599 transitions. [2023-12-22 01:19:49,716 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1599 transitions. Word has length 23 [2023-12-22 01:19:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:49,716 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1599 transitions. [2023-12-22 01:19:49,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:49,717 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1599 transitions. [2023-12-22 01:19:49,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:19:49,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:49,718 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] [2023-12-22 01:19:49,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:49,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:49,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:49,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1993651821, now seen corresponding path program 1 times [2023-12-22 01:19:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839826321] [2023-12-22 01:19:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:49,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:49,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:49,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:49,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 01:19:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:50,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:19:50,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:50,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:50,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:50,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839826321] [2023-12-22 01:19:50,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839826321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:50,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:50,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:19:50,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804073546] [2023-12-22 01:19:50,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:50,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:19:50,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:50,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:19:50,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:19:50,084 INFO L87 Difference]: Start difference. First operand 845 states and 1599 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:50,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:50,178 INFO L93 Difference]: Finished difference Result 895 states and 1678 transitions. [2023-12-22 01:19:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:19:50,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-12-22 01:19:50,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:50,182 INFO L225 Difference]: With dead ends: 895 [2023-12-22 01:19:50,182 INFO L226 Difference]: Without dead ends: 845 [2023-12-22 01:19:50,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:19:50,184 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:50,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4744 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:19:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-22 01:19:50,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2023-12-22 01:19:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.849347568208778) internal successors, (1559), 844 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:50,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1559 transitions. [2023-12-22 01:19:50,199 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1559 transitions. Word has length 23 [2023-12-22 01:19:50,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:50,199 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1559 transitions. [2023-12-22 01:19:50,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1559 transitions. [2023-12-22 01:19:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 01:19:50,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:50,201 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] [2023-12-22 01:19:50,208 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 [2023-12-22 01:19:50,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:50,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:50,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -399524715, now seen corresponding path program 1 times [2023-12-22 01:19:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:50,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118985539] [2023-12-22 01:19:50,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:50,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:50,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:50,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:50,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 01:19:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:50,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:19:50,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:51,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:51,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:51,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118985539] [2023-12-22 01:19:51,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118985539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:51,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:51,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:19:51,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458490669] [2023-12-22 01:19:51,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:51,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:19:51,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:51,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:19:51,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:19:51,589 INFO L87 Difference]: Start difference. First operand 845 states and 1559 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:51,987 INFO L93 Difference]: Finished difference Result 1174 states and 2091 transitions. [2023-12-22 01:19:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:19:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-22 01:19:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:51,995 INFO L225 Difference]: With dead ends: 1174 [2023-12-22 01:19:51,995 INFO L226 Difference]: Without dead ends: 1127 [2023-12-22 01:19:51,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:19:51,996 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 3420 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:52,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 2238 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 01:19:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-12-22 01:19:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 935. [2023-12-22 01:19:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 933 states have (on average 1.8285101822079315) internal successors, (1706), 934 states have internal predecessors, (1706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1706 transitions. [2023-12-22 01:19:52,019 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1706 transitions. Word has length 62 [2023-12-22 01:19:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:52,020 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1706 transitions. [2023-12-22 01:19:52,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,020 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1706 transitions. [2023-12-22 01:19:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 01:19:52,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:52,026 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] [2023-12-22 01:19:52,032 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 [2023-12-22 01:19:52,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:52,230 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:52,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:52,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1824915739, now seen corresponding path program 1 times [2023-12-22 01:19:52,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:52,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029645098] [2023-12-22 01:19:52,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:52,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:52,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:52,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:52,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 01:19:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:52,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:52,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:52,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:52,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029645098] [2023-12-22 01:19:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029645098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:52,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:52,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491129152] [2023-12-22 01:19:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:52,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:52,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:52,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:52,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:52,435 INFO L87 Difference]: Start difference. First operand 935 states and 1706 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:52,475 INFO L93 Difference]: Finished difference Result 1193 states and 2124 transitions. [2023-12-22 01:19:52,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-12-22 01:19:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:52,480 INFO L225 Difference]: With dead ends: 1193 [2023-12-22 01:19:52,480 INFO L226 Difference]: Without dead ends: 1056 [2023-12-22 01:19:52,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:52,481 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1488 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:52,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1625 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2023-12-22 01:19:52,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1054. [2023-12-22 01:19:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1052 states have (on average 1.8013307984790874) internal successors, (1895), 1053 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1895 transitions. [2023-12-22 01:19:52,500 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1895 transitions. Word has length 64 [2023-12-22 01:19:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:52,501 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1895 transitions. [2023-12-22 01:19:52,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1895 transitions. [2023-12-22 01:19:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 01:19:52,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:52,502 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] [2023-12-22 01:19:52,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 01:19:52,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:52,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:52,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:52,706 INFO L85 PathProgramCache]: Analyzing trace with hash -800020118, now seen corresponding path program 1 times [2023-12-22 01:19:52,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:52,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564674338] [2023-12-22 01:19:52,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:52,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:52,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:52,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:52,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 01:19:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:52,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:19:52,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:52,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:52,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564674338] [2023-12-22 01:19:52,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564674338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:52,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:52,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:19:52,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696832278] [2023-12-22 01:19:52,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:52,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:19:52,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:52,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:19:52,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:19:52,827 INFO L87 Difference]: Start difference. First operand 1054 states and 1895 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:52,892 INFO L93 Difference]: Finished difference Result 1068 states and 1912 transitions. [2023-12-22 01:19:52,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:19:52,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-22 01:19:52,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:52,898 INFO L225 Difference]: With dead ends: 1068 [2023-12-22 01:19:52,898 INFO L226 Difference]: Without dead ends: 1066 [2023-12-22 01:19:52,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:19:52,899 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:52,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4657 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:52,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-12-22 01:19:52,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1062. [2023-12-22 01:19:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1060 states have (on average 1.7943396226415094) internal successors, (1902), 1061 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1902 transitions. [2023-12-22 01:19:52,918 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1902 transitions. Word has length 65 [2023-12-22 01:19:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:52,919 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1902 transitions. [2023-12-22 01:19:52,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1902 transitions. [2023-12-22 01:19:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:52,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:52,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:52,932 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 [2023-12-22 01:19:53,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:53,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:53,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash 306459741, now seen corresponding path program 1 times [2023-12-22 01:19:53,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:53,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545829243] [2023-12-22 01:19:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:53,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:53,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:53,134 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:53,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 01:19:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:53,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:53,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:53,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:53,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:53,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545829243] [2023-12-22 01:19:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545829243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:53,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:53,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:53,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259551139] [2023-12-22 01:19:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:53,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:53,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:53,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:53,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:53,305 INFO L87 Difference]: Start difference. First operand 1062 states and 1902 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:53,340 INFO L93 Difference]: Finished difference Result 1338 states and 2342 transitions. [2023-12-22 01:19:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:53,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:19:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:53,345 INFO L225 Difference]: With dead ends: 1338 [2023-12-22 01:19:53,345 INFO L226 Difference]: Without dead ends: 1195 [2023-12-22 01:19:53,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:53,346 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1504 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:53,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2023-12-22 01:19:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1193. [2023-12-22 01:19:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1191 states have (on average 1.7699412258606213) internal successors, (2108), 1192 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 2108 transitions. [2023-12-22 01:19:53,367 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 2108 transitions. Word has length 66 [2023-12-22 01:19:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:53,367 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 2108 transitions. [2023-12-22 01:19:53,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 2108 transitions. [2023-12-22 01:19:53,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:53,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:53,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:53,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:53,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:53,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:53,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash -103926947, now seen corresponding path program 1 times [2023-12-22 01:19:53,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:53,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233826971] [2023-12-22 01:19:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:53,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:53,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:53,574 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:53,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 01:19:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:53,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:53,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:53,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:53,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:53,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233826971] [2023-12-22 01:19:53,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233826971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:53,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:53,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:53,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907372072] [2023-12-22 01:19:53,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:53,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:53,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:53,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:53,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:53,726 INFO L87 Difference]: Start difference. First operand 1193 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:53,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:53,767 INFO L93 Difference]: Finished difference Result 1943 states and 3291 transitions. [2023-12-22 01:19:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:53,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:19:53,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:53,773 INFO L225 Difference]: With dead ends: 1943 [2023-12-22 01:19:53,773 INFO L226 Difference]: Without dead ends: 1550 [2023-12-22 01:19:53,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:53,774 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1502 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:53,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2023-12-22 01:19:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1548. [2023-12-22 01:19:53,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1546 states have (on average 1.7192755498059509) internal successors, (2658), 1547 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2658 transitions. [2023-12-22 01:19:53,802 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2658 transitions. Word has length 66 [2023-12-22 01:19:53,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:53,802 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 2658 transitions. [2023-12-22 01:19:53,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2658 transitions. [2023-12-22 01:19:53,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:53,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:53,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:53,809 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 [2023-12-22 01:19:54,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:54,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:54,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:54,007 INFO L85 PathProgramCache]: Analyzing trace with hash -332566179, now seen corresponding path program 1 times [2023-12-22 01:19:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40228620] [2023-12-22 01:19:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:54,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:54,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:54,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:54,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 01:19:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:54,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:54,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:54,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:54,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:54,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:54,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40228620] [2023-12-22 01:19:54,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40228620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:54,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:54,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:54,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075051099] [2023-12-22 01:19:54,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:54,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:54,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:54,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:54,159 INFO L87 Difference]: Start difference. First operand 1548 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:54,207 INFO L93 Difference]: Finished difference Result 2972 states and 4878 transitions. [2023-12-22 01:19:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:19:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:54,217 INFO L225 Difference]: With dead ends: 2972 [2023-12-22 01:19:54,217 INFO L226 Difference]: Without dead ends: 2224 [2023-12-22 01:19:54,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:54,219 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1498 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:54,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1694 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:54,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2023-12-22 01:19:54,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2222. [2023-12-22 01:19:54,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2220 states have (on average 1.6603603603603603) internal successors, (3686), 2221 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3686 transitions. [2023-12-22 01:19:54,282 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3686 transitions. Word has length 66 [2023-12-22 01:19:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:54,283 INFO L495 AbstractCegarLoop]: Abstraction has 2222 states and 3686 transitions. [2023-12-22 01:19:54,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:54,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3686 transitions. [2023-12-22 01:19:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:54,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:54,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:54,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:54,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:54,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:54,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash -958222243, now seen corresponding path program 1 times [2023-12-22 01:19:54,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:54,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279593469] [2023-12-22 01:19:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:54,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:54,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:54,490 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:54,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 01:19:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:54,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:54,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:54,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:54,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:54,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279593469] [2023-12-22 01:19:54,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279593469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:54,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:54,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:54,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192403793] [2023-12-22 01:19:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:54,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:54,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:54,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:54,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:54,629 INFO L87 Difference]: Start difference. First operand 2222 states and 3686 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:54,694 INFO L93 Difference]: Finished difference Result 4922 states and 7836 transitions. [2023-12-22 01:19:54,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:54,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:19:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:54,707 INFO L225 Difference]: With dead ends: 4922 [2023-12-22 01:19:54,707 INFO L226 Difference]: Without dead ends: 3500 [2023-12-22 01:19:54,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:54,710 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1496 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:54,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2023-12-22 01:19:54,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3498. [2023-12-22 01:19:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3496 states have (on average 1.6012585812356979) internal successors, (5598), 3497 states have internal predecessors, (5598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5598 transitions. [2023-12-22 01:19:54,826 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5598 transitions. Word has length 66 [2023-12-22 01:19:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:54,827 INFO L495 AbstractCegarLoop]: Abstraction has 3498 states and 5598 transitions. [2023-12-22 01:19:54,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5598 transitions. [2023-12-22 01:19:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:54,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:54,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:54,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:55,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:55,031 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:55,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:55,032 INFO L85 PathProgramCache]: Analyzing trace with hash -69488803, now seen corresponding path program 1 times [2023-12-22 01:19:55,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:55,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27877265] [2023-12-22 01:19:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:55,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:55,034 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:55,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 01:19:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:55,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:55,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:55,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:55,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27877265] [2023-12-22 01:19:55,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27877265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:55,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:55,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:55,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235982029] [2023-12-22 01:19:55,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:55,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:55,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:55,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:55,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:55,176 INFO L87 Difference]: Start difference. First operand 3498 states and 5598 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:55,276 INFO L93 Difference]: Finished difference Result 8606 states and 13320 transitions. [2023-12-22 01:19:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:55,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:19:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:55,297 INFO L225 Difference]: With dead ends: 8606 [2023-12-22 01:19:55,297 INFO L226 Difference]: Without dead ends: 5908 [2023-12-22 01:19:55,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:55,302 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1494 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:55,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:55,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2023-12-22 01:19:55,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5906. [2023-12-22 01:19:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 1.5470867208672088) internal successors, (9134), 5905 states have internal predecessors, (9134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 9134 transitions. [2023-12-22 01:19:55,439 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 9134 transitions. Word has length 66 [2023-12-22 01:19:55,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:55,439 INFO L495 AbstractCegarLoop]: Abstraction has 5906 states and 9134 transitions. [2023-12-22 01:19:55,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 9134 transitions. [2023-12-22 01:19:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:55,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:55,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:55,447 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 (11)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:55,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:55,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:55,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash -372510115, now seen corresponding path program 1 times [2023-12-22 01:19:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:55,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875545522] [2023-12-22 01:19:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:55,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:55,646 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:55,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 01:19:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:55,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:55,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:55,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:55,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:55,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875545522] [2023-12-22 01:19:55,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875545522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:55,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:55,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:19:55,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945421857] [2023-12-22 01:19:55,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:55,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:55,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:55,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:55,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:55,786 INFO L87 Difference]: Start difference. First operand 5906 states and 9134 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:19:55,909 INFO L93 Difference]: Finished difference Result 15542 states and 23424 transitions. [2023-12-22 01:19:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:19:55,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:19:55,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:19:55,954 INFO L225 Difference]: With dead ends: 15542 [2023-12-22 01:19:55,954 INFO L226 Difference]: Without dead ends: 10436 [2023-12-22 01:19:55,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:55,966 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1500 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:19:55,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1700 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:19:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2023-12-22 01:19:56,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 10434. [2023-12-22 01:19:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10434 states, 10432 states have (on average 1.4982745398773005) internal successors, (15630), 10433 states have internal predecessors, (15630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:56,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10434 states to 10434 states and 15630 transitions. [2023-12-22 01:19:56,282 INFO L78 Accepts]: Start accepts. Automaton has 10434 states and 15630 transitions. Word has length 66 [2023-12-22 01:19:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:19:56,283 INFO L495 AbstractCegarLoop]: Abstraction has 10434 states and 15630 transitions. [2023-12-22 01:19:56,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:19:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 10434 states and 15630 transitions. [2023-12-22 01:19:56,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:19:56,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:19:56,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:19:56,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 01:19:56,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:56,488 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:19:56,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:19:56,489 INFO L85 PathProgramCache]: Analyzing trace with hash -773477451, now seen corresponding path program 1 times [2023-12-22 01:19:56,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:19:56,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746601621] [2023-12-22 01:19:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:19:56,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:19:56,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:19:56,491 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:19:56,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 01:19:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:19:56,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:19:56,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:19:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:19:56,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:19:56,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:19:56,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746601621] [2023-12-22 01:19:56,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746601621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:19:56,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:19:56,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:19:56,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823376844] [2023-12-22 01:19:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:19:56,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:19:56,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:19:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:19:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:19:56,668 INFO L87 Difference]: Start difference. First operand 10434 states and 15630 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:29,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:29,371 INFO L93 Difference]: Finished difference Result 11938 states and 18503 transitions. [2023-12-22 01:20:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:29,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 01:20:29,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:29,389 INFO L225 Difference]: With dead ends: 11938 [2023-12-22 01:20:29,389 INFO L226 Difference]: Without dead ends: 11185 [2023-12-22 01:20:29,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:29,392 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 872 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:29,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 545 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 32.5s Time] [2023-12-22 01:20:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11185 states. [2023-12-22 01:20:29,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11185 to 11185. [2023-12-22 01:20:29,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 11183 states have (on average 1.4894929804167039) internal successors, (16657), 11184 states have internal predecessors, (16657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 16657 transitions. [2023-12-22 01:20:29,617 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 16657 transitions. Word has length 66 [2023-12-22 01:20:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:29,618 INFO L495 AbstractCegarLoop]: Abstraction has 11185 states and 16657 transitions. [2023-12-22 01:20:29,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:29,618 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 16657 transitions. [2023-12-22 01:20:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:20:29,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:29,621 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] [2023-12-22 01:20:29,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:29,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:29,821 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:29,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash -956920740, now seen corresponding path program 1 times [2023-12-22 01:20:29,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:29,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130199517] [2023-12-22 01:20:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:29,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:29,824 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:29,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 01:20:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:29,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:20:29,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:30,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:31,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:31,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130199517] [2023-12-22 01:20:31,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130199517] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:31,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:31,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:20:31,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229781168] [2023-12-22 01:20:31,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:31,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:20:31,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:20:31,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:20:31,372 INFO L87 Difference]: Start difference. First operand 11185 states and 16657 transitions. Second operand has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:33,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:33,681 INFO L93 Difference]: Finished difference Result 32347 states and 47414 transitions. [2023-12-22 01:20:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:20:33,682 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-22 01:20:33,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:33,735 INFO L225 Difference]: With dead ends: 32347 [2023-12-22 01:20:33,735 INFO L226 Difference]: Without dead ends: 25625 [2023-12-22 01:20:33,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:20:33,749 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 6911 mSDsluCounter, 10964 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6911 SdHoareTripleChecker+Valid, 12530 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:33,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6911 Valid, 12530 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 01:20:33,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25625 states. [2023-12-22 01:20:34,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25625 to 20817. [2023-12-22 01:20:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20817 states, 20815 states have (on average 1.4751381215469612) internal successors, (30705), 20816 states have internal predecessors, (30705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20817 states to 20817 states and 30705 transitions. [2023-12-22 01:20:34,351 INFO L78 Accepts]: Start accepts. Automaton has 20817 states and 30705 transitions. Word has length 86 [2023-12-22 01:20:34,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:34,351 INFO L495 AbstractCegarLoop]: Abstraction has 20817 states and 30705 transitions. [2023-12-22 01:20:34,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 20817 states and 30705 transitions. [2023-12-22 01:20:34,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:20:34,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:34,354 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] [2023-12-22 01:20:34,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:34,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:34,559 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:34,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:34,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1367307428, now seen corresponding path program 1 times [2023-12-22 01:20:34,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:34,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571301227] [2023-12-22 01:20:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:34,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:34,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:34,560 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:34,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 01:20:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:34,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:20:34,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:34,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:20:34,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:34,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571301227] [2023-12-22 01:20:34,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571301227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:20:34,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:20:34,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:20:34,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754445006] [2023-12-22 01:20:34,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:20:34,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:20:34,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:34,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:20:34,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:34,698 INFO L87 Difference]: Start difference. First operand 20817 states and 30705 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) [2023-12-22 01:20:34,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:34,948 INFO L93 Difference]: Finished difference Result 34281 states and 50600 transitions. [2023-12-22 01:20:34,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:34,948 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 [2023-12-22 01:20:34,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:34,978 INFO L225 Difference]: With dead ends: 34281 [2023-12-22 01:20:34,979 INFO L226 Difference]: Without dead ends: 15015 [2023-12-22 01:20:35,001 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 [2023-12-22 01:20:35,001 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 55 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:35,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3149 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:20:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15015 states. [2023-12-22 01:20:35,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15015 to 15008. [2023-12-22 01:20:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15008 states, 15006 states have (on average 1.479941356790617) internal successors, (22208), 15007 states have internal predecessors, (22208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15008 states to 15008 states and 22208 transitions. [2023-12-22 01:20:35,432 INFO L78 Accepts]: Start accepts. Automaton has 15008 states and 22208 transitions. Word has length 86 [2023-12-22 01:20:35,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:35,432 INFO L495 AbstractCegarLoop]: Abstraction has 15008 states and 22208 transitions. [2023-12-22 01:20:35,432 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) [2023-12-22 01:20:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15008 states and 22208 transitions. [2023-12-22 01:20:35,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 01:20:35,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:35,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:35,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:35,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:35,639 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:35,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:35,640 INFO L85 PathProgramCache]: Analyzing trace with hash 261008472, now seen corresponding path program 1 times [2023-12-22 01:20:35,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:35,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187875734] [2023-12-22 01:20:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:35,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:35,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:35,641 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:35,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 01:20:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:35,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:20:35,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:35,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:20:35,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:35,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187875734] [2023-12-22 01:20:35,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187875734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:20:35,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:20:35,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:20:35,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086088317] [2023-12-22 01:20:35,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:20:35,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:20:35,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:35,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:20:35,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:35,785 INFO L87 Difference]: Start difference. First operand 15008 states and 22208 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) [2023-12-22 01:20:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:35,915 INFO L93 Difference]: Finished difference Result 21732 states and 32050 transitions. [2023-12-22 01:20:35,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:35,916 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 [2023-12-22 01:20:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:35,929 INFO L225 Difference]: With dead ends: 21732 [2023-12-22 01:20:35,930 INFO L226 Difference]: Without dead ends: 8290 [2023-12-22 01:20:35,944 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 [2023-12-22 01:20:35,945 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 51 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3134 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:20:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8290 states. [2023-12-22 01:20:36,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8290 to 8288. [2023-12-22 01:20:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 8286 states have (on average 1.481052377504224) internal successors, (12272), 8287 states have internal predecessors, (12272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 12272 transitions. [2023-12-22 01:20:36,223 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 12272 transitions. Word has length 88 [2023-12-22 01:20:36,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:36,224 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 12272 transitions. [2023-12-22 01:20:36,224 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) [2023-12-22 01:20:36,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 12272 transitions. [2023-12-22 01:20:36,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 01:20:36,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:36,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:36,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:36,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:36,430 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:36,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 24988784, now seen corresponding path program 1 times [2023-12-22 01:20:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068887870] [2023-12-22 01:20:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:36,431 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 [2023-12-22 01:20:36,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:36,432 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:36,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 01:20:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:36,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:20:36,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:37,529 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:37,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:37,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:37,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068887870] [2023-12-22 01:20:37,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068887870] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:37,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:37,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:20:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085497556] [2023-12-22 01:20:37,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:37,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:20:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:20:37,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:20:37,950 INFO L87 Difference]: Start difference. First operand 8288 states and 12272 transitions. Second operand has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:38,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:38,776 INFO L93 Difference]: Finished difference Result 15218 states and 22229 transitions. [2023-12-22 01:20:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 01:20:38,776 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-22 01:20:38,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:38,786 INFO L225 Difference]: With dead ends: 15218 [2023-12-22 01:20:38,787 INFO L226 Difference]: Without dead ends: 8496 [2023-12-22 01:20:38,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 01:20:38,794 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 1629 mSDsluCounter, 9084 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 10591 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:38,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 10591 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 01:20:38,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2023-12-22 01:20:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8302. [2023-12-22 01:20:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8302 states, 8300 states have (on average 1.4804819277108434) internal successors, (12288), 8301 states have internal predecessors, (12288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 12288 transitions. [2023-12-22 01:20:39,039 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 12288 transitions. Word has length 89 [2023-12-22 01:20:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:39,039 INFO L495 AbstractCegarLoop]: Abstraction has 8302 states and 12288 transitions. [2023-12-22 01:20:39,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 12288 transitions. [2023-12-22 01:20:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 01:20:39,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:39,041 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] [2023-12-22 01:20:39,047 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 (17)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:39,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:39,245 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:39,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1267295416, now seen corresponding path program 1 times [2023-12-22 01:20:39,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:39,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216871325] [2023-12-22 01:20:39,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:39,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:39,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:39,248 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:39,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 01:20:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:39,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:20:39,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:39,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:20:39,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:39,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216871325] [2023-12-22 01:20:39,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216871325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:20:39,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:20:39,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:20:39,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531382127] [2023-12-22 01:20:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:20:39,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:20:39,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:20:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:39,386 INFO L87 Difference]: Start difference. First operand 8302 states and 12288 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) [2023-12-22 01:20:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:39,467 INFO L93 Difference]: Finished difference Result 11666 states and 17162 transitions. [2023-12-22 01:20:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:39,467 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 [2023-12-22 01:20:39,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:39,472 INFO L225 Difference]: With dead ends: 11666 [2023-12-22 01:20:39,472 INFO L226 Difference]: Without dead ends: 4944 [2023-12-22 01:20:39,477 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 [2023-12-22 01:20:39,478 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 47 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:39,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:20:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2023-12-22 01:20:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4942. [2023-12-22 01:20:39,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4942 states, 4940 states have (on average 1.491497975708502) internal successors, (7368), 4941 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4942 states to 4942 states and 7368 transitions. [2023-12-22 01:20:39,582 INFO L78 Accepts]: Start accepts. Automaton has 4942 states and 7368 transitions. Word has length 91 [2023-12-22 01:20:39,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:39,583 INFO L495 AbstractCegarLoop]: Abstraction has 4942 states and 7368 transitions. [2023-12-22 01:20:39,583 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) [2023-12-22 01:20:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4942 states and 7368 transitions. [2023-12-22 01:20:39,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 01:20:39,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:39,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:39,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:39,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:39,788 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:39,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:39,789 INFO L85 PathProgramCache]: Analyzing trace with hash 886529808, now seen corresponding path program 1 times [2023-12-22 01:20:39,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:39,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659986021] [2023-12-22 01:20:39,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:39,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:39,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:39,791 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:39,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 01:20:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:39,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:20:39,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:40,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:41,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:41,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659986021] [2023-12-22 01:20:41,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659986021] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:41,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:41,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:20:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427848115] [2023-12-22 01:20:41,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:41,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:20:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:20:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:20:41,140 INFO L87 Difference]: Start difference. First operand 4942 states and 7368 transitions. Second operand has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:42,602 INFO L93 Difference]: Finished difference Result 14214 states and 20524 transitions. [2023-12-22 01:20:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:20:42,603 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 0 states have call successors, (0), 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 [2023-12-22 01:20:42,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:42,616 INFO L225 Difference]: With dead ends: 14214 [2023-12-22 01:20:42,616 INFO L226 Difference]: Without dead ends: 10852 [2023-12-22 01:20:42,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:20:42,623 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 2086 mSDsluCounter, 10915 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 12517 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:42,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 12517 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:20:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10852 states. [2023-12-22 01:20:42,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10852 to 8590. [2023-12-22 01:20:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8590 states, 8588 states have (on average 1.447601304145319) internal successors, (12432), 8589 states have internal predecessors, (12432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12432 transitions. [2023-12-22 01:20:42,878 INFO L78 Accepts]: Start accepts. Automaton has 8590 states and 12432 transitions. Word has length 92 [2023-12-22 01:20:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:42,878 INFO L495 AbstractCegarLoop]: Abstraction has 8590 states and 12432 transitions. [2023-12-22 01:20:42,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8590 states and 12432 transitions. [2023-12-22 01:20:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-22 01:20:42,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:42,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:42,891 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 [2023-12-22 01:20:43,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:43,084 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:43,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:43,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1613750180, now seen corresponding path program 1 times [2023-12-22 01:20:43,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:43,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049775737] [2023-12-22 01:20:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:43,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:43,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:43,086 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:43,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 01:20:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:43,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:20:43,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:43,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:20:43,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:43,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049775737] [2023-12-22 01:20:43,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049775737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:20:43,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:20:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:20:43,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699080527] [2023-12-22 01:20:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:20:43,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:20:43,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:20:43,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:43,257 INFO L87 Difference]: Start difference. First operand 8590 states and 12432 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) [2023-12-22 01:20:43,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:43,366 INFO L93 Difference]: Finished difference Result 12098 states and 17378 transitions. [2023-12-22 01:20:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:43,367 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 [2023-12-22 01:20:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:43,375 INFO L225 Difference]: With dead ends: 12098 [2023-12-22 01:20:43,375 INFO L226 Difference]: Without dead ends: 5088 [2023-12-22 01:20:43,380 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 [2023-12-22 01:20:43,381 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 43 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:43,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:20:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5088 states. [2023-12-22 01:20:43,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5088 to 5086. [2023-12-22 01:20:43,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 5084 states have (on average 1.4634146341463414) internal successors, (7440), 5085 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7440 transitions. [2023-12-22 01:20:43,529 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7440 transitions. Word has length 94 [2023-12-22 01:20:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:43,529 INFO L495 AbstractCegarLoop]: Abstraction has 5086 states and 7440 transitions. [2023-12-22 01:20:43,529 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) [2023-12-22 01:20:43,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7440 transitions. [2023-12-22 01:20:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-22 01:20:43,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:43,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:43,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:43,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:43,734 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:43,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1218330460, now seen corresponding path program 1 times [2023-12-22 01:20:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:43,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596413959] [2023-12-22 01:20:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:43,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:43,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:43,736 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:43,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 01:20:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:43,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:20:43,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:44,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:45,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:45,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596413959] [2023-12-22 01:20:45,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596413959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:45,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:45,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:20:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839324486] [2023-12-22 01:20:45,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:45,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:20:45,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:20:45,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:20:45,112 INFO L87 Difference]: Start difference. First operand 5086 states and 7440 transitions. Second operand has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:46,565 INFO L93 Difference]: Finished difference Result 14358 states and 20260 transitions. [2023-12-22 01:20:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:20:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-22 01:20:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:46,573 INFO L225 Difference]: With dead ends: 14358 [2023-12-22 01:20:46,574 INFO L226 Difference]: Without dead ends: 10852 [2023-12-22 01:20:46,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:20:46,575 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 4940 mSDsluCounter, 10824 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 12408 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:46,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4940 Valid, 12408 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:20:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10852 states. [2023-12-22 01:20:46,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10852 to 8878. [2023-12-22 01:20:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8878 states, 8876 states have (on average 1.416854438936458) internal successors, (12576), 8877 states have internal predecessors, (12576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8878 states to 8878 states and 12576 transitions. [2023-12-22 01:20:46,762 INFO L78 Accepts]: Start accepts. Automaton has 8878 states and 12576 transitions. Word has length 95 [2023-12-22 01:20:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:46,762 INFO L495 AbstractCegarLoop]: Abstraction has 8878 states and 12576 transitions. [2023-12-22 01:20:46,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8878 states and 12576 transitions. [2023-12-22 01:20:46,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-22 01:20:46,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:46,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:46,773 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 (21)] Ended with exit code 0 [2023-12-22 01:20:46,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:46,972 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:46,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1309778044, now seen corresponding path program 1 times [2023-12-22 01:20:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043019199] [2023-12-22 01:20:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:46,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:46,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:46,974 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:46,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 01:20:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:47,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:20:47,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:47,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:20:47,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:47,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043019199] [2023-12-22 01:20:47,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043019199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:20:47,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:20:47,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:20:47,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360027102] [2023-12-22 01:20:47,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:20:47,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:20:47,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:47,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:20:47,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:47,142 INFO L87 Difference]: Start difference. First operand 8878 states and 12576 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:47,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:47,268 INFO L93 Difference]: Finished difference Result 12530 states and 17594 transitions. [2023-12-22 01:20:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-22 01:20:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:47,273 INFO L225 Difference]: With dead ends: 12530 [2023-12-22 01:20:47,273 INFO L226 Difference]: Without dead ends: 5232 [2023-12-22 01:20:47,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:47,276 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 39 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:47,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3089 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:20:47,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5232 states. [2023-12-22 01:20:47,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5232 to 5230. [2023-12-22 01:20:47,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5228 states have (on average 1.4368783473603672) internal successors, (7512), 5229 states have internal predecessors, (7512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 7512 transitions. [2023-12-22 01:20:47,366 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 7512 transitions. Word has length 97 [2023-12-22 01:20:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:47,366 INFO L495 AbstractCegarLoop]: Abstraction has 5230 states and 7512 transitions. [2023-12-22 01:20:47,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 7512 transitions. [2023-12-22 01:20:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-22 01:20:47,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:47,367 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] [2023-12-22 01:20:47,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:47,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:47,568 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:47,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:47,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2015919044, now seen corresponding path program 1 times [2023-12-22 01:20:47,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:47,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342782215] [2023-12-22 01:20:47,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:47,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:47,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:47,570 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:47,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 01:20:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:47,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:20:47,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:48,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:48,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:48,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342782215] [2023-12-22 01:20:48,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342782215] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:48,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:48,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:20:48,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420267815] [2023-12-22 01:20:48,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:48,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:20:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:48,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:20:48,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:20:48,902 INFO L87 Difference]: Start difference. First operand 5230 states and 7512 transitions. Second operand has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:50,401 INFO L93 Difference]: Finished difference Result 14502 states and 19996 transitions. [2023-12-22 01:20:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:20:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-22 01:20:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:50,411 INFO L225 Difference]: With dead ends: 14502 [2023-12-22 01:20:50,411 INFO L226 Difference]: Without dead ends: 10852 [2023-12-22 01:20:50,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:20:50,416 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 4927 mSDsluCounter, 13830 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4927 SdHoareTripleChecker+Valid, 15396 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:50,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4927 Valid, 15396 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:20:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10852 states. [2023-12-22 01:20:50,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10852 to 9166. [2023-12-22 01:20:50,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9166 states, 9164 states have (on average 1.3880401571366217) internal successors, (12720), 9165 states have internal predecessors, (12720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9166 states to 9166 states and 12720 transitions. [2023-12-22 01:20:50,649 INFO L78 Accepts]: Start accepts. Automaton has 9166 states and 12720 transitions. Word has length 98 [2023-12-22 01:20:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:50,650 INFO L495 AbstractCegarLoop]: Abstraction has 9166 states and 12720 transitions. [2023-12-22 01:20:50,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 9166 states and 12720 transitions. [2023-12-22 01:20:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:20:50,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:50,652 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:50,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:50,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:50,855 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:50,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash -24811280, now seen corresponding path program 1 times [2023-12-22 01:20:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:50,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546829426] [2023-12-22 01:20:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:50,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:50,858 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:50,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 01:20:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:50,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:20:50,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:51,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:20:51,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:51,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546829426] [2023-12-22 01:20:51,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546829426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:20:51,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:20:51,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:20:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594768810] [2023-12-22 01:20:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:20:51,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:20:51,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:51,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:20:51,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:51,009 INFO L87 Difference]: Start difference. First operand 9166 states and 12720 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:51,156 INFO L93 Difference]: Finished difference Result 12962 states and 17786 transitions. [2023-12-22 01:20:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:20:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-22 01:20:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:51,163 INFO L225 Difference]: With dead ends: 12962 [2023-12-22 01:20:51,164 INFO L226 Difference]: Without dead ends: 5376 [2023-12-22 01:20:51,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:20:51,169 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 35 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:51,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3074 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:20:51,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5376 states. [2023-12-22 01:20:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5376 to 5374. [2023-12-22 01:20:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5374 states, 5372 states have (on average 1.4072970960536113) internal successors, (7560), 5373 states have internal predecessors, (7560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:51,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 7560 transitions. [2023-12-22 01:20:51,269 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 7560 transitions. Word has length 100 [2023-12-22 01:20:51,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:51,269 INFO L495 AbstractCegarLoop]: Abstraction has 5374 states and 7560 transitions. [2023-12-22 01:20:51,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 7560 transitions. [2023-12-22 01:20:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-22 01:20:51,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:51,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:51,273 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 (24)] Ended with exit code 0 [2023-12-22 01:20:51,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:51,471 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:51,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash -211050792, now seen corresponding path program 1 times [2023-12-22 01:20:51,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:51,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301247827] [2023-12-22 01:20:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:51,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:51,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:51,473 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:51,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 01:20:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:51,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:20:51,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:52,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:52,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:52,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301247827] [2023-12-22 01:20:52,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301247827] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:52,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:52,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:20:52,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268415675] [2023-12-22 01:20:52,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:52,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:20:52,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:52,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:20:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:20:52,725 INFO L87 Difference]: Start difference. First operand 5374 states and 7560 transitions. Second operand has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:54,187 INFO L93 Difference]: Finished difference Result 12454 states and 16812 transitions. [2023-12-22 01:20:54,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:20:54,187 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 0 states have call successors, (0), 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 101 [2023-12-22 01:20:54,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:54,197 INFO L225 Difference]: With dead ends: 12454 [2023-12-22 01:20:54,197 INFO L226 Difference]: Without dead ends: 8660 [2023-12-22 01:20:54,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:20:54,201 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 1831 mSDsluCounter, 10789 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 12337 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:54,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 12337 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:20:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8660 states. [2023-12-22 01:20:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8660 to 8094. [2023-12-22 01:20:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8094 states, 8092 states have (on average 1.3633217993079585) internal successors, (11032), 8093 states have internal predecessors, (11032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8094 states to 8094 states and 11032 transitions. [2023-12-22 01:20:54,417 INFO L78 Accepts]: Start accepts. Automaton has 8094 states and 11032 transitions. Word has length 101 [2023-12-22 01:20:54,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:54,417 INFO L495 AbstractCegarLoop]: Abstraction has 8094 states and 11032 transitions. [2023-12-22 01:20:54,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 8094 states and 11032 transitions. [2023-12-22 01:20:54,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 01:20:54,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:54,419 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] [2023-12-22 01:20:54,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:54,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:54,622 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:54,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:54,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1876438960, now seen corresponding path program 1 times [2023-12-22 01:20:54,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:54,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856140095] [2023-12-22 01:20:54,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:54,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:54,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:54,624 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:54,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 01:20:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:54,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:20:54,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:54,928 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:20:54,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:20:55,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856140095] [2023-12-22 01:20:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856140095] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:55,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:55,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:20:55,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974268010] [2023-12-22 01:20:55,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:55,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:20:55,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:20:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:20:55,154 INFO L87 Difference]: Start difference. First operand 8094 states and 11032 transitions. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:55,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:20:55,661 INFO L93 Difference]: Finished difference Result 26904 states and 35077 transitions. [2023-12-22 01:20:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:20:55,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 0 states have call successors, (0), 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 103 [2023-12-22 01:20:55,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:20:55,682 INFO L225 Difference]: With dead ends: 26904 [2023-12-22 01:20:55,683 INFO L226 Difference]: Without dead ends: 20390 [2023-12-22 01:20:55,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:20:55,690 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 4509 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:20:55,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 3323 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:20:55,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20390 states. [2023-12-22 01:20:56,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20390 to 19954. [2023-12-22 01:20:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19954 states, 19952 states have (on average 1.2731555733761026) internal successors, (25402), 19953 states have internal predecessors, (25402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19954 states to 19954 states and 25402 transitions. [2023-12-22 01:20:56,279 INFO L78 Accepts]: Start accepts. Automaton has 19954 states and 25402 transitions. Word has length 103 [2023-12-22 01:20:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:20:56,279 INFO L495 AbstractCegarLoop]: Abstraction has 19954 states and 25402 transitions. [2023-12-22 01:20:56,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:20:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 19954 states and 25402 transitions. [2023-12-22 01:20:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 01:20:56,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:20:56,283 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:20:56,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 01:20:56,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:56,487 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:20:56,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:20:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1398061026, now seen corresponding path program 1 times [2023-12-22 01:20:56,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:20:56,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055919409] [2023-12-22 01:20:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:20:56,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:20:56,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:20:56,489 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:20:56,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 01:20:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:20:56,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:20:56,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:20:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:57,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:20:57,808 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:20:57,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:20:57,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055919409] [2023-12-22 01:20:57,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055919409] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:20:57,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:20:57,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:20:57,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421882081] [2023-12-22 01:20:57,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:20:57,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:20:57,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:20:57,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:20:57,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:20:57,810 INFO L87 Difference]: Start difference. First operand 19954 states and 25402 transitions. Second operand has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:38,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:38,807 INFO L93 Difference]: Finished difference Result 26788 states and 36764 transitions. [2023-12-22 01:22:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 01:22:38,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-22 01:22:38,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:38,833 INFO L225 Difference]: With dead ends: 26788 [2023-12-22 01:22:38,833 INFO L226 Difference]: Without dead ends: 25284 [2023-12-22 01:22:38,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:22:38,839 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 5208 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 9153 mSolverCounterSat, 2977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 12130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2977 IncrementalHoareTripleChecker+Valid, 9153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:38,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 824 Invalid, 12130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2977 Valid, 9153 Invalid, 0 Unknown, 0 Unchecked, 100.0s Time] [2023-12-22 01:22:38,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25284 states. [2023-12-22 01:22:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25284 to 24460. [2023-12-22 01:22:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24458 states have (on average 1.262817891896312) internal successors, (30886), 24459 states have internal predecessors, (30886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:39,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 30886 transitions. [2023-12-22 01:22:39,503 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 30886 transitions. Word has length 137 [2023-12-22 01:22:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:39,503 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 30886 transitions. [2023-12-22 01:22:39,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 30886 transitions. [2023-12-22 01:22:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-22 01:22:39,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:39,512 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:22:39,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 01:22:39,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:39,716 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:39,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:39,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2124086672, now seen corresponding path program 1 times [2023-12-22 01:22:39,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:39,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414237284] [2023-12-22 01:22:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:39,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:39,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:39,718 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:39,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 01:22:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:39,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:22:39,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 54 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:41,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:22:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 54 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:42,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:42,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414237284] [2023-12-22 01:22:42,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414237284] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:22:42,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:22:42,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:22:42,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666404079] [2023-12-22 01:22:42,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:22:42,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:22:42,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:22:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:22:42,281 INFO L87 Difference]: Start difference. First operand 24460 states and 30886 transitions. Second operand has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:44,529 INFO L93 Difference]: Finished difference Result 36844 states and 46430 transitions. [2023-12-22 01:22:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:22:44,530 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 0 states have call successors, (0), 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 154 [2023-12-22 01:22:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:44,554 INFO L225 Difference]: With dead ends: 36844 [2023-12-22 01:22:44,554 INFO L226 Difference]: Without dead ends: 24690 [2023-12-22 01:22:44,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 01:22:44,566 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 16850 mSDsluCounter, 6476 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16850 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:44,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16850 Valid, 8017 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:22:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24690 states. [2023-12-22 01:22:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24690 to 24460. [2023-12-22 01:22:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24458 states have (on average 1.2536593343691225) internal successors, (30662), 24459 states have internal predecessors, (30662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 30662 transitions. [2023-12-22 01:22:45,368 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 30662 transitions. Word has length 154 [2023-12-22 01:22:45,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:45,368 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 30662 transitions. [2023-12-22 01:22:45,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:45,368 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 30662 transitions. [2023-12-22 01:22:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-22 01:22:45,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:45,376 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:22:45,384 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 [2023-12-22 01:22:45,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:45,580 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:45,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:45,581 INFO L85 PathProgramCache]: Analyzing trace with hash -958760866, now seen corresponding path program 1 times [2023-12-22 01:22:45,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:45,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730407903] [2023-12-22 01:22:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:45,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:45,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:45,583 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:45,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 01:22:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:45,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:22:45,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:47,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:22:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:47,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:47,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730407903] [2023-12-22 01:22:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730407903] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:22:47,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:22:47,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:22:47,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937360761] [2023-12-22 01:22:47,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:22:47,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:22:47,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:22:47,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:22:47,670 INFO L87 Difference]: Start difference. First operand 24460 states and 30662 transitions. Second operand has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:22:50,693 INFO L93 Difference]: Finished difference Result 40772 states and 50893 transitions. [2023-12-22 01:22:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 01:22:50,694 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2023-12-22 01:22:50,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:22:50,724 INFO L225 Difference]: With dead ends: 40772 [2023-12-22 01:22:50,724 INFO L226 Difference]: Without dead ends: 24462 [2023-12-22 01:22:50,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 01:22:50,732 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 19427 mSDsluCounter, 9515 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19427 SdHoareTripleChecker+Valid, 11056 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:22:50,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19427 Valid, 11056 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 01:22:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24462 states. [2023-12-22 01:22:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24462 to 24460. [2023-12-22 01:22:51,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24458 states have (on average 1.2451549595224467) internal successors, (30454), 24459 states have internal predecessors, (30454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:51,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 30454 transitions. [2023-12-22 01:22:51,495 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 30454 transitions. Word has length 155 [2023-12-22 01:22:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:22:51,495 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 30454 transitions. [2023-12-22 01:22:51,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:22:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 30454 transitions. [2023-12-22 01:22:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-22 01:22:51,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:22:51,500 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:22:51,505 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 (29)] Ended with exit code 0 [2023-12-22 01:22:51,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:51,701 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:22:51,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:22:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash -774257984, now seen corresponding path program 1 times [2023-12-22 01:22:51,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:22:51,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819352204] [2023-12-22 01:22:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:22:51,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:22:51,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:22:51,703 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:22:51,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 01:22:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:22:51,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:22:51,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:22:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:53,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:22:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:22:53,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:22:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819352204] [2023-12-22 01:22:53,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819352204] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:22:53,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:22:53,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:22:53,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981128703] [2023-12-22 01:22:53,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:22:53,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:22:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:22:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:22:53,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:22:53,974 INFO L87 Difference]: Start difference. First operand 24460 states and 30454 transitions. Second operand has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:00,127 INFO L93 Difference]: Finished difference Result 90704 states and 113059 transitions. [2023-12-22 01:23:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 01:23:00,128 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 0 states have call successors, (0), 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 156 [2023-12-22 01:23:00,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:00,212 INFO L225 Difference]: With dead ends: 90704 [2023-12-22 01:23:00,212 INFO L226 Difference]: Without dead ends: 82894 [2023-12-22 01:23:00,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 01:23:00,229 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 20672 mSDsluCounter, 8329 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20672 SdHoareTripleChecker+Valid, 9870 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:00,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20672 Valid, 9870 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-22 01:23:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82894 states. [2023-12-22 01:23:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82894 to 24460. [2023-12-22 01:23:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24458 states have (on average 1.240575680758852) internal successors, (30342), 24459 states have internal predecessors, (30342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 30342 transitions. [2023-12-22 01:23:01,623 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 30342 transitions. Word has length 156 [2023-12-22 01:23:01,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:01,624 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 30342 transitions. [2023-12-22 01:23:01,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:01,624 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 30342 transitions. [2023-12-22 01:23:01,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-22 01:23:01,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:01,629 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:23:01,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:01,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:01,830 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:01,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1363462190, now seen corresponding path program 1 times [2023-12-22 01:23:01,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:01,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32678708] [2023-12-22 01:23:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:01,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:01,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:01,832 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:01,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 01:23:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:01,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:23:01,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 30 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:03,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 30 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:04,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:04,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32678708] [2023-12-22 01:23:04,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32678708] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:04,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:04,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:23:04,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338246674] [2023-12-22 01:23:04,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:04,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:04,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:04,460 INFO L87 Difference]: Start difference. First operand 24460 states and 30342 transitions. Second operand has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:07,043 INFO L93 Difference]: Finished difference Result 34196 states and 42346 transitions. [2023-12-22 01:23:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:23:07,043 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 0 states have call successors, (0), 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 157 [2023-12-22 01:23:07,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:07,072 INFO L225 Difference]: With dead ends: 34196 [2023-12-22 01:23:07,072 INFO L226 Difference]: Without dead ends: 26674 [2023-12-22 01:23:07,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:23:07,082 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18458 mSDsluCounter, 6453 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18458 SdHoareTripleChecker+Valid, 7994 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:07,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18458 Valid, 7994 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:23:07,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2023-12-22 01:23:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 24460. [2023-12-22 01:23:08,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24458 states have (on average 1.2359964019952572) internal successors, (30230), 24459 states have internal predecessors, (30230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 30230 transitions. [2023-12-22 01:23:08,034 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 30230 transitions. Word has length 157 [2023-12-22 01:23:08,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:08,034 INFO L495 AbstractCegarLoop]: Abstraction has 24460 states and 30230 transitions. [2023-12-22 01:23:08,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:08,034 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 30230 transitions. [2023-12-22 01:23:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:23:08,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:08,039 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:08,043 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 [2023-12-22 01:23:08,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:08,240 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:08,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash -951706300, now seen corresponding path program 1 times [2023-12-22 01:23:08,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:08,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783807527] [2023-12-22 01:23:08,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:08,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:08,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:08,243 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:08,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 01:23:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:08,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:23:08,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 30 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:10,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 30 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:11,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:11,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783807527] [2023-12-22 01:23:11,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783807527] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:11,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:11,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:23:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707890803] [2023-12-22 01:23:11,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:11,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:11,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:11,277 INFO L87 Difference]: Start difference. First operand 24460 states and 30230 transitions. Second operand has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:18,064 INFO L93 Difference]: Finished difference Result 37922 states and 46558 transitions. [2023-12-22 01:23:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:23:18,065 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 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 158 [2023-12-22 01:23:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:18,102 INFO L225 Difference]: With dead ends: 37922 [2023-12-22 01:23:18,102 INFO L226 Difference]: Without dead ends: 34768 [2023-12-22 01:23:18,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:23:18,114 INFO L413 NwaCegarLoop]: 1664 mSDtfsCounter, 5274 mSDsluCounter, 22509 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 24173 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:18,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 24173 Invalid, 2551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 01:23:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34768 states. [2023-12-22 01:23:18,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34768 to 18968. [2023-12-22 01:23:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18968 states, 18966 states have (on average 1.2453864810713908) internal successors, (23620), 18967 states have internal predecessors, (23620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18968 states to 18968 states and 23620 transitions. [2023-12-22 01:23:18,932 INFO L78 Accepts]: Start accepts. Automaton has 18968 states and 23620 transitions. Word has length 158 [2023-12-22 01:23:18,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:18,932 INFO L495 AbstractCegarLoop]: Abstraction has 18968 states and 23620 transitions. [2023-12-22 01:23:18,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18968 states and 23620 transitions. [2023-12-22 01:23:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:23:18,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:18,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:18,939 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 (32)] Ended with exit code 0 [2023-12-22 01:23:19,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:19,137 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:19,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1097579536, now seen corresponding path program 1 times [2023-12-22 01:23:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:19,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738876738] [2023-12-22 01:23:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:19,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:19,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:19,139 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:19,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 01:23:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:19,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:23:19,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:20,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:21,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:21,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738876738] [2023-12-22 01:23:21,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738876738] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:21,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:21,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:23:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843403127] [2023-12-22 01:23:21,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:21,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:21,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:21,575 INFO L87 Difference]: Start difference. First operand 18968 states and 23620 transitions. Second operand has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:24,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:24,321 INFO L93 Difference]: Finished difference Result 25180 states and 31212 transitions. [2023-12-22 01:23:24,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:23:24,322 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 0 states have call successors, (0), 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 158 [2023-12-22 01:23:24,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:24,339 INFO L225 Difference]: With dead ends: 25180 [2023-12-22 01:23:24,339 INFO L226 Difference]: Without dead ends: 19874 [2023-12-22 01:23:24,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:23:24,346 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 13615 mSDsluCounter, 9649 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13615 SdHoareTripleChecker+Valid, 11190 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:24,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13615 Valid, 11190 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 01:23:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19874 states. [2023-12-22 01:23:25,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19874 to 18968. [2023-12-22 01:23:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18968 states, 18966 states have (on average 1.2409575028999262) internal successors, (23536), 18967 states have internal predecessors, (23536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18968 states to 18968 states and 23536 transitions. [2023-12-22 01:23:25,100 INFO L78 Accepts]: Start accepts. Automaton has 18968 states and 23536 transitions. Word has length 158 [2023-12-22 01:23:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:25,100 INFO L495 AbstractCegarLoop]: Abstraction has 18968 states and 23536 transitions. [2023-12-22 01:23:25,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 18968 states and 23536 transitions. [2023-12-22 01:23:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:23:25,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:25,104 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:25,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:25,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:25,304 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:25,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash -479668226, now seen corresponding path program 1 times [2023-12-22 01:23:25,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:25,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058215575] [2023-12-22 01:23:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:25,305 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 [2023-12-22 01:23:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:25,306 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:25,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 01:23:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:25,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:23:25,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:27,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:28,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:28,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058215575] [2023-12-22 01:23:28,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058215575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:28,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:28,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:23:28,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948097724] [2023-12-22 01:23:28,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:28,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:28,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:28,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:28,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:28,559 INFO L87 Difference]: Start difference. First operand 18968 states and 23536 transitions. Second operand has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:34,433 INFO L93 Difference]: Finished difference Result 28118 states and 34400 transitions. [2023-12-22 01:23:34,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:23:34,434 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 0 states have call successors, (0), 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 159 [2023-12-22 01:23:34,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:34,453 INFO L225 Difference]: With dead ends: 28118 [2023-12-22 01:23:34,453 INFO L226 Difference]: Without dead ends: 21960 [2023-12-22 01:23:34,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:23:34,459 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 3855 mSDsluCounter, 20521 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3855 SdHoareTripleChecker+Valid, 22152 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:34,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3855 Valid, 22152 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2077 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 01:23:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21960 states. [2023-12-22 01:23:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21960 to 14136. [2023-12-22 01:23:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14136 states, 14134 states have (on average 1.2512381491439084) internal successors, (17685), 14135 states have internal predecessors, (17685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:35,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14136 states to 14136 states and 17685 transitions. [2023-12-22 01:23:35,009 INFO L78 Accepts]: Start accepts. Automaton has 14136 states and 17685 transitions. Word has length 159 [2023-12-22 01:23:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:35,009 INFO L495 AbstractCegarLoop]: Abstraction has 14136 states and 17685 transitions. [2023-12-22 01:23:35,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:35,009 INFO L276 IsEmpty]: Start isEmpty. Operand 14136 states and 17685 transitions. [2023-12-22 01:23:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:23:35,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:35,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:35,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:35,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:35,212 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:35,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:35,212 INFO L85 PathProgramCache]: Analyzing trace with hash -124962654, now seen corresponding path program 1 times [2023-12-22 01:23:35,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:35,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602387494] [2023-12-22 01:23:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:35,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:35,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:35,214 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:35,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 01:23:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:35,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:23:35,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 22 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:36,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 22 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:37,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:37,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602387494] [2023-12-22 01:23:37,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602387494] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:37,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:37,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:23:37,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486604224] [2023-12-22 01:23:37,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:37,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:37,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:37,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:37,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:37,886 INFO L87 Difference]: Start difference. First operand 14136 states and 17685 transitions. Second operand has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:44,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:44,688 INFO L93 Difference]: Finished difference Result 31356 states and 38187 transitions. [2023-12-22 01:23:44,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:23:44,689 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 0 states have call successors, (0), 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 159 [2023-12-22 01:23:44,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:44,716 INFO L225 Difference]: With dead ends: 31356 [2023-12-22 01:23:44,716 INFO L226 Difference]: Without dead ends: 29578 [2023-12-22 01:23:44,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:23:44,725 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 5175 mSDsluCounter, 23866 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5175 SdHoareTripleChecker+Valid, 25517 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:44,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5175 Valid, 25517 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 01:23:44,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29578 states. [2023-12-22 01:23:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29578 to 25539. [2023-12-22 01:23:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25539 states, 25537 states have (on average 1.2249676939342915) internal successors, (31282), 25538 states have internal predecessors, (31282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:46,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25539 states to 25539 states and 31282 transitions. [2023-12-22 01:23:46,067 INFO L78 Accepts]: Start accepts. Automaton has 25539 states and 31282 transitions. Word has length 159 [2023-12-22 01:23:46,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:46,067 INFO L495 AbstractCegarLoop]: Abstraction has 25539 states and 31282 transitions. [2023-12-22 01:23:46,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:46,067 INFO L276 IsEmpty]: Start isEmpty. Operand 25539 states and 31282 transitions. [2023-12-22 01:23:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:23:46,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:46,071 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:46,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 01:23:46,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:46,272 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:46,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:46,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2136047070, now seen corresponding path program 1 times [2023-12-22 01:23:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10447025] [2023-12-22 01:23:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:46,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:46,274 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:46,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 01:23:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:46,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:23:46,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:48,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:49,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:49,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10447025] [2023-12-22 01:23:49,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10447025] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:49,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:49,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:23:49,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054574439] [2023-12-22 01:23:49,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:49,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:49,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:49,100 INFO L87 Difference]: Start difference. First operand 25539 states and 31282 transitions. Second operand has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:23:54,215 INFO L93 Difference]: Finished difference Result 43681 states and 53232 transitions. [2023-12-22 01:23:54,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 01:23:54,215 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 0 states have call successors, (0), 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 159 [2023-12-22 01:23:54,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:23:54,253 INFO L225 Difference]: With dead ends: 43681 [2023-12-22 01:23:54,254 INFO L226 Difference]: Without dead ends: 39215 [2023-12-22 01:23:54,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 01:23:54,263 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 3384 mSDsluCounter, 23576 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 25157 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:23:54,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3384 Valid, 25157 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-22 01:23:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39215 states. [2023-12-22 01:23:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39215 to 36487. [2023-12-22 01:23:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36487 states, 36485 states have (on average 1.215211730848294) internal successors, (44337), 36486 states have internal predecessors, (44337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:56,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36487 states to 36487 states and 44337 transitions. [2023-12-22 01:23:56,518 INFO L78 Accepts]: Start accepts. Automaton has 36487 states and 44337 transitions. Word has length 159 [2023-12-22 01:23:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:23:56,518 INFO L495 AbstractCegarLoop]: Abstraction has 36487 states and 44337 transitions. [2023-12-22 01:23:56,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:23:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 36487 states and 44337 transitions. [2023-12-22 01:23:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:23:56,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:23:56,523 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:23:56,527 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 (36)] Ended with exit code 0 [2023-12-22 01:23:56,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:23:56,724 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:23:56,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:23:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 867190014, now seen corresponding path program 1 times [2023-12-22 01:23:56,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:23:56,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842389130] [2023-12-22 01:23:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:23:56,725 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 [2023-12-22 01:23:56,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:23:56,726 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:23:56,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 01:23:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:23:56,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:23:56,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:23:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:58,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:23:58,954 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:23:58,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:23:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842389130] [2023-12-22 01:23:58,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842389130] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:23:58,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:23:58,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:23:58,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020698269] [2023-12-22 01:23:58,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:23:58,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:23:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:23:58,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:23:58,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:23:58,956 INFO L87 Difference]: Start difference. First operand 36487 states and 44337 transitions. Second operand has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:07,506 INFO L93 Difference]: Finished difference Result 62698 states and 75852 transitions. [2023-12-22 01:24:07,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:24:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 0 states have call successors, (0), 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 159 [2023-12-22 01:24:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:07,555 INFO L225 Difference]: With dead ends: 62698 [2023-12-22 01:24:07,555 INFO L226 Difference]: Without dead ends: 50210 [2023-12-22 01:24:07,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:24:07,563 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 2205 mSDsluCounter, 22766 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 24445 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:07,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 24445 Invalid, 2736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 01:24:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50210 states. [2023-12-22 01:24:10,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50210 to 43073. [2023-12-22 01:24:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43073 states, 43071 states have (on average 1.205613986208818) internal successors, (51927), 43072 states have internal predecessors, (51927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43073 states to 43073 states and 51927 transitions. [2023-12-22 01:24:10,295 INFO L78 Accepts]: Start accepts. Automaton has 43073 states and 51927 transitions. Word has length 159 [2023-12-22 01:24:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:10,295 INFO L495 AbstractCegarLoop]: Abstraction has 43073 states and 51927 transitions. [2023-12-22 01:24:10,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 43073 states and 51927 transitions. [2023-12-22 01:24:10,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:24:10,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:10,300 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:24:10,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:10,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:10,501 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:10,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1126044766, now seen corresponding path program 1 times [2023-12-22 01:24:10,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:10,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528072272] [2023-12-22 01:24:10,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:10,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:10,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:10,503 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:24:10,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 01:24:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:10,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:24:10,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:24:12,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:24:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:24:13,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:13,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528072272] [2023-12-22 01:24:13,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528072272] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:24:13,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:24:13,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:24:13,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940511456] [2023-12-22 01:24:13,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:24:13,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:24:13,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:13,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:24:13,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:24:13,064 INFO L87 Difference]: Start difference. First operand 43073 states and 51927 transitions. Second operand has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:24:25,326 INFO L93 Difference]: Finished difference Result 117576 states and 139292 transitions. [2023-12-22 01:24:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:24:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 0 states have call successors, (0), 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 159 [2023-12-22 01:24:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:24:25,441 INFO L225 Difference]: With dead ends: 117576 [2023-12-22 01:24:25,441 INFO L226 Difference]: Without dead ends: 104896 [2023-12-22 01:24:25,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:24:25,458 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 3762 mSDsluCounter, 18190 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3762 SdHoareTripleChecker+Valid, 19890 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:24:25,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3762 Valid, 19890 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 01:24:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104896 states. [2023-12-22 01:24:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104896 to 76524. [2023-12-22 01:24:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76524 states, 76522 states have (on average 1.1887300384203237) internal successors, (90964), 76523 states have internal predecessors, (90964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76524 states to 76524 states and 90964 transitions. [2023-12-22 01:24:31,180 INFO L78 Accepts]: Start accepts. Automaton has 76524 states and 90964 transitions. Word has length 159 [2023-12-22 01:24:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:24:31,181 INFO L495 AbstractCegarLoop]: Abstraction has 76524 states and 90964 transitions. [2023-12-22 01:24:31,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:24:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 76524 states and 90964 transitions. [2023-12-22 01:24:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-22 01:24:31,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:24:31,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:24:31,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 01:24:31,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:31,392 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:24:31,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:24:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash -599153789, now seen corresponding path program 1 times [2023-12-22 01:24:31,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:24:31,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589572559] [2023-12-22 01:24:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:24:31,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:24:31,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:24:31,396 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:24:31,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 01:24:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:24:31,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:24:31,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:24:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:24:31,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:24:31,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:24:31,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589572559] [2023-12-22 01:24:31,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589572559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:24:31,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:24:31,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:24:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981360407] [2023-12-22 01:24:31,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:24:31,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:24:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:24:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:24:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:24:31,757 INFO L87 Difference]: Start difference. First operand 76524 states and 90964 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:25:11,983 INFO L93 Difference]: Finished difference Result 85538 states and 103651 transitions. [2023-12-22 01:25:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:25:11,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2023-12-22 01:25:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:25:12,105 INFO L225 Difference]: With dead ends: 85538 [2023-12-22 01:25:12,105 INFO L226 Difference]: Without dead ends: 80279 [2023-12-22 01:25:12,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:25:12,123 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 776 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:25:12,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 494 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 35.2s Time] [2023-12-22 01:25:12,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80279 states. [2023-12-22 01:25:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80279 to 79528. [2023-12-22 01:25:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79528 states, 79526 states have (on average 1.196702965068028) internal successors, (95169), 79527 states have internal predecessors, (95169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79528 states to 79528 states and 95169 transitions. [2023-12-22 01:25:17,703 INFO L78 Accepts]: Start accepts. Automaton has 79528 states and 95169 transitions. Word has length 175 [2023-12-22 01:25:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:25:17,703 INFO L495 AbstractCegarLoop]: Abstraction has 79528 states and 95169 transitions. [2023-12-22 01:25:17,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 79528 states and 95169 transitions. [2023-12-22 01:25:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:25:17,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:25:17,733 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:25:17,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-22 01:25:17,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:25:17,934 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:25:17,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:25:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash -498074588, now seen corresponding path program 1 times [2023-12-22 01:25:17,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:25:17,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182875358] [2023-12-22 01:25:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:25:17,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:25:17,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:25:17,936 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:25:17,937 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 (40)] Waiting until timeout for monitored process [2023-12-22 01:25:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:25:18,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:25:18,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:25:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:25:20,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:25:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:25:21,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:25:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182875358] [2023-12-22 01:25:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182875358] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:25:21,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:25:21,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:25:21,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581472050] [2023-12-22 01:25:21,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:25:21,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:25:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:25:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:25:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:25:21,931 INFO L87 Difference]: Start difference. First operand 79528 states and 95169 transitions. Second operand has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:36,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:25:36,471 INFO L93 Difference]: Finished difference Result 105979 states and 126704 transitions. [2023-12-22 01:25:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 01:25:36,473 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 0 states have call successors, (0), 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 217 [2023-12-22 01:25:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:25:36,582 INFO L225 Difference]: With dead ends: 105979 [2023-12-22 01:25:36,582 INFO L226 Difference]: Without dead ends: 98633 [2023-12-22 01:25:36,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 01:25:36,599 INFO L413 NwaCegarLoop]: 1690 mSDtfsCounter, 2124 mSDsluCounter, 34923 mSDsCounter, 0 mSdLazyCounter, 5238 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 36613 SdHoareTripleChecker+Invalid, 5254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:25:36,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 36613 Invalid, 5254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 5238 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-22 01:25:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98633 states. [2023-12-22 01:25:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98633 to 50282. [2023-12-22 01:25:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50282 states, 50280 states have (on average 1.2110779634049325) internal successors, (60893), 50281 states have internal predecessors, (60893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50282 states to 50282 states and 60893 transitions. [2023-12-22 01:25:40,966 INFO L78 Accepts]: Start accepts. Automaton has 50282 states and 60893 transitions. Word has length 217 [2023-12-22 01:25:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:25:40,966 INFO L495 AbstractCegarLoop]: Abstraction has 50282 states and 60893 transitions. [2023-12-22 01:25:40,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 50282 states and 60893 transitions. [2023-12-22 01:25:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:25:41,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:25:41,061 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:25:41,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-22 01:25:41,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:25:41,262 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:25:41,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:25:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1656305060, now seen corresponding path program 2 times [2023-12-22 01:25:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:25:41,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053482993] [2023-12-22 01:25:41,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:25:41,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:25:41,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:25:41,264 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:25:41,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 01:25:41,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:25:41,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:25:41,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:25:41,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:25:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-22 01:25:44,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:25:44,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:25:44,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053482993] [2023-12-22 01:25:44,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053482993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:25:44,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:25:44,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:25:44,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328974863] [2023-12-22 01:25:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:25:44,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:25:44,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:25:44,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:25:44,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:25:44,583 INFO L87 Difference]: Start difference. First operand 50282 states and 60893 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:25:49,243 INFO L93 Difference]: Finished difference Result 72703 states and 88570 transitions. [2023-12-22 01:25:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:25:49,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2023-12-22 01:25:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:25:49,313 INFO L225 Difference]: With dead ends: 72703 [2023-12-22 01:25:49,313 INFO L226 Difference]: Without dead ends: 63979 [2023-12-22 01:25:49,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:25:49,324 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 3239 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:25:49,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 3566 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:25:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63979 states. [2023-12-22 01:25:53,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63979 to 50218. [2023-12-22 01:25:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50218 states, 50216 states have (on average 1.2057710689819978) internal successors, (60549), 50217 states have internal predecessors, (60549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:53,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 60549 transitions. [2023-12-22 01:25:53,736 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 60549 transitions. Word has length 217 [2023-12-22 01:25:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:25:53,736 INFO L495 AbstractCegarLoop]: Abstraction has 50218 states and 60549 transitions. [2023-12-22 01:25:53,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:25:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 60549 transitions. [2023-12-22 01:25:53,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:25:53,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:25:53,755 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:25:53,758 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 01:25:53,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:25:53,957 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:25:53,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:25:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2011010632, now seen corresponding path program 2 times [2023-12-22 01:25:53,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:25:53,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102563100] [2023-12-22 01:25:53,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:25:53,958 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 [2023-12-22 01:25:53,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:25:53,959 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:25:53,960 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 (42)] Waiting until timeout for monitored process [2023-12-22 01:25:54,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:25:54,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:25:54,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:25:54,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:25:57,109 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-12-22 01:25:57,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:25:57,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:25:57,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102563100] [2023-12-22 01:25:57,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102563100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:25:57,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:25:57,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:25:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054697212] [2023-12-22 01:25:57,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:25:57,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:25:57,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:25:57,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:25:57,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:25:57,110 INFO L87 Difference]: Start difference. First operand 50218 states and 60549 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:01,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:01,885 INFO L93 Difference]: Finished difference Result 68367 states and 83124 transitions. [2023-12-22 01:26:01,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:26:01,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2023-12-22 01:26:01,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:01,956 INFO L225 Difference]: With dead ends: 68367 [2023-12-22 01:26:01,956 INFO L226 Difference]: Without dead ends: 64939 [2023-12-22 01:26:01,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:01,966 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 3233 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:01,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 3544 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:26:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64939 states. [2023-12-22 01:26:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64939 to 53151. [2023-12-22 01:26:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53151 states, 53149 states have (on average 1.2026943122165987) internal successors, (63922), 53150 states have internal predecessors, (63922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53151 states to 53151 states and 63922 transitions. [2023-12-22 01:26:06,548 INFO L78 Accepts]: Start accepts. Automaton has 53151 states and 63922 transitions. Word has length 217 [2023-12-22 01:26:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:06,549 INFO L495 AbstractCegarLoop]: Abstraction has 53151 states and 63922 transitions. [2023-12-22 01:26:06,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 53151 states and 63922 transitions. [2023-12-22 01:26:06,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:26:06,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:06,570 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:06,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-22 01:26:06,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:06,774 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:06,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash -73784, now seen corresponding path program 2 times [2023-12-22 01:26:06,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:06,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938998428] [2023-12-22 01:26:06,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:26:06,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:06,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:06,776 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:06,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-22 01:26:06,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:26:06,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:26:06,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:26:06,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-22 01:26:09,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:26:09,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:09,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938998428] [2023-12-22 01:26:09,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938998428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:26:09,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:26:09,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:26:09,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031561301] [2023-12-22 01:26:09,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:26:09,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:26:09,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:09,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:26:09,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:09,606 INFO L87 Difference]: Start difference. First operand 53151 states and 63922 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:14,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:14,546 INFO L93 Difference]: Finished difference Result 76336 states and 92729 transitions. [2023-12-22 01:26:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:26:14,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 217 [2023-12-22 01:26:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:14,612 INFO L225 Difference]: With dead ends: 76336 [2023-12-22 01:26:14,613 INFO L226 Difference]: Without dead ends: 67924 [2023-12-22 01:26:14,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:14,622 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 4676 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:14,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4676 Valid, 3545 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:26:14,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67924 states. [2023-12-22 01:26:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67924 to 59750. [2023-12-22 01:26:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59750 states, 59748 states have (on average 1.1956048738033072) internal successors, (71435), 59749 states have internal predecessors, (71435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59750 states to 59750 states and 71435 transitions. [2023-12-22 01:26:19,717 INFO L78 Accepts]: Start accepts. Automaton has 59750 states and 71435 transitions. Word has length 217 [2023-12-22 01:26:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:19,717 INFO L495 AbstractCegarLoop]: Abstraction has 59750 states and 71435 transitions. [2023-12-22 01:26:19,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 59750 states and 71435 transitions. [2023-12-22 01:26:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:26:19,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:19,730 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:19,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 01:26:19,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:19,930 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:19,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:19,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1291803996, now seen corresponding path program 2 times [2023-12-22 01:26:19,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:19,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499595510] [2023-12-22 01:26:19,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:26:19,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:19,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:19,933 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:19,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 01:26:20,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:26:20,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:26:20,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:26:20,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-22 01:26:22,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:26:22,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499595510] [2023-12-22 01:26:22,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499595510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:26:22,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:26:22,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:26:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645981427] [2023-12-22 01:26:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:26:22,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:26:22,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:22,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:26:22,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:22,864 INFO L87 Difference]: Start difference. First operand 59750 states and 71435 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:28,444 INFO L93 Difference]: Finished difference Result 79522 states and 96001 transitions. [2023-12-22 01:26:28,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:26:28,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 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 217 [2023-12-22 01:26:28,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:28,514 INFO L225 Difference]: With dead ends: 79522 [2023-12-22 01:26:28,514 INFO L226 Difference]: Without dead ends: 73725 [2023-12-22 01:26:28,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:28,524 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1781 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:28,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 3673 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:26:28,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73725 states. [2023-12-22 01:26:34,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73725 to 65553. [2023-12-22 01:26:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65553 states, 65551 states have (on average 1.1924760873213223) internal successors, (78168), 65552 states have internal predecessors, (78168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65553 states to 65553 states and 78168 transitions. [2023-12-22 01:26:34,281 INFO L78 Accepts]: Start accepts. Automaton has 65553 states and 78168 transitions. Word has length 217 [2023-12-22 01:26:34,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:34,281 INFO L495 AbstractCegarLoop]: Abstraction has 65553 states and 78168 transitions. [2023-12-22 01:26:34,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:34,282 INFO L276 IsEmpty]: Start isEmpty. Operand 65553 states and 78168 transitions. [2023-12-22 01:26:34,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:26:34,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:34,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:34,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-22 01:26:34,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:34,498 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:34,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:34,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1009928520, now seen corresponding path program 2 times [2023-12-22 01:26:34,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:34,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780021393] [2023-12-22 01:26:34,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:26:34,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:34,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:34,500 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:34,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 01:26:34,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:26:34,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:26:34,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:26:34,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-22 01:26:37,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:26:37,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:37,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780021393] [2023-12-22 01:26:37,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780021393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:26:37,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:26:37,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:26:37,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435123316] [2023-12-22 01:26:37,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:26:37,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:26:37,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:26:37,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:37,372 INFO L87 Difference]: Start difference. First operand 65553 states and 78168 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:26:43,132 INFO L93 Difference]: Finished difference Result 83873 states and 100943 transitions. [2023-12-22 01:26:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:26:43,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 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 217 [2023-12-22 01:26:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:26:43,217 INFO L225 Difference]: With dead ends: 83873 [2023-12-22 01:26:43,218 INFO L226 Difference]: Without dead ends: 79387 [2023-12-22 01:26:43,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:26:43,230 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 3224 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:26:43,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 3592 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:26:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79387 states. [2023-12-22 01:26:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79387 to 70370. [2023-12-22 01:26:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70370 states, 70368 states have (on average 1.1906832651205093) internal successors, (83786), 70369 states have internal predecessors, (83786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70370 states to 70370 states and 83786 transitions. [2023-12-22 01:26:49,318 INFO L78 Accepts]: Start accepts. Automaton has 70370 states and 83786 transitions. Word has length 217 [2023-12-22 01:26:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:26:49,318 INFO L495 AbstractCegarLoop]: Abstraction has 70370 states and 83786 transitions. [2023-12-22 01:26:49,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:26:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 70370 states and 83786 transitions. [2023-12-22 01:26:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:26:49,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:26:49,333 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:26:49,337 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 (45)] Ended with exit code 0 [2023-12-22 01:26:49,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:49,534 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:26:49,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:26:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash -799505984, now seen corresponding path program 1 times [2023-12-22 01:26:49,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:26:49,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796418337] [2023-12-22 01:26:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:26:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:26:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:26:49,536 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:26:49,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-22 01:26:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:26:49,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:26:49,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:26:52,524 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:52,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:26:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:26:53,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:26:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796418337] [2023-12-22 01:26:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796418337] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:26:53,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:26:53,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:26:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120058054] [2023-12-22 01:26:53,660 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:26:53,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:26:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:26:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:26:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:26:53,662 INFO L87 Difference]: Start difference. First operand 70370 states and 83786 transitions. Second operand has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:22,656 INFO L93 Difference]: Finished difference Result 154738 states and 181616 transitions. [2023-12-22 01:27:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:27:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 0 states have call successors, (0), 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 218 [2023-12-22 01:27:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:22,806 INFO L225 Difference]: With dead ends: 154738 [2023-12-22 01:27:22,806 INFO L226 Difference]: Without dead ends: 148065 [2023-12-22 01:27:22,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:27:22,824 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 4034 mSDsluCounter, 37697 mSDsCounter, 0 mSdLazyCounter, 7408 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 39475 SdHoareTripleChecker+Invalid, 7431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 7408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:22,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4034 Valid, 39475 Invalid, 7431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 7408 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-22 01:27:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148065 states. [2023-12-22 01:27:29,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148065 to 73702. [2023-12-22 01:27:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73702 states, 73700 states have (on average 1.188371777476255) internal successors, (87583), 73701 states have internal predecessors, (87583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:29,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73702 states to 73702 states and 87583 transitions. [2023-12-22 01:27:29,931 INFO L78 Accepts]: Start accepts. Automaton has 73702 states and 87583 transitions. Word has length 218 [2023-12-22 01:27:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:29,932 INFO L495 AbstractCegarLoop]: Abstraction has 73702 states and 87583 transitions. [2023-12-22 01:27:29,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:27:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 73702 states and 87583 transitions. [2023-12-22 01:27:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:27:29,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:29,946 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:29,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 01:27:30,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:30,147 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:30,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:30,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1281386560, now seen corresponding path program 1 times [2023-12-22 01:27:30,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:30,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715710503] [2023-12-22 01:27:30,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:30,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:30,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:30,149 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:27:30,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 01:27:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:30,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:27:30,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:33,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:27:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:34,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:34,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715710503] [2023-12-22 01:27:34,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715710503] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:27:34,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:27:34,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:27:34,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103115289] [2023-12-22 01:27:34,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:27:34,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:27:34,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:34,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:27:34,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:27:34,120 INFO L87 Difference]: Start difference. First operand 73702 states and 87583 transitions. Second operand has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:00,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:00,783 INFO L93 Difference]: Finished difference Result 113190 states and 133980 transitions. [2023-12-22 01:28:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:28:00,783 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 0 states have call successors, (0), 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 218 [2023-12-22 01:28:00,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:00,882 INFO L225 Difference]: With dead ends: 113190 [2023-12-22 01:28:00,882 INFO L226 Difference]: Without dead ends: 97155 [2023-12-22 01:28:00,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4427 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:28:00,899 INFO L413 NwaCegarLoop]: 1786 mSDtfsCounter, 5793 mSDsluCounter, 32656 mSDsCounter, 0 mSdLazyCounter, 6519 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5793 SdHoareTripleChecker+Valid, 34442 SdHoareTripleChecker+Invalid, 6546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:00,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5793 Valid, 34442 Invalid, 6546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 6519 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-22 01:28:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97155 states. [2023-12-22 01:28:08,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97155 to 82079. [2023-12-22 01:28:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82079 states, 82077 states have (on average 1.1878723637559852) internal successors, (97497), 82078 states have internal predecessors, (97497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82079 states to 82079 states and 97497 transitions. [2023-12-22 01:28:08,925 INFO L78 Accepts]: Start accepts. Automaton has 82079 states and 97497 transitions. Word has length 218 [2023-12-22 01:28:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:08,925 INFO L495 AbstractCegarLoop]: Abstraction has 82079 states and 97497 transitions. [2023-12-22 01:28:08,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 82079 states and 97497 transitions. [2023-12-22 01:28:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:28:08,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:08,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:08,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:09,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:09,142 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:09,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash -107544348, now seen corresponding path program 1 times [2023-12-22 01:28:09,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:09,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625068237] [2023-12-22 01:28:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:09,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:09,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:09,144 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:28:09,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 01:28:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:09,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:28:09,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:11,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:12,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:12,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625068237] [2023-12-22 01:28:12,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625068237] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:12,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:12,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:28:12,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777600120] [2023-12-22 01:28:12,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:12,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:28:12,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:12,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:28:12,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:28:12,950 INFO L87 Difference]: Start difference. First operand 82079 states and 97497 transitions. Second operand has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:43,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:43,103 INFO L93 Difference]: Finished difference Result 124032 states and 146273 transitions. [2023-12-22 01:28:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 01:28:43,103 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 states have internal predecessors, (409), 0 states have call successors, (0), 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 218 [2023-12-22 01:28:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:43,230 INFO L225 Difference]: With dead ends: 124032 [2023-12-22 01:28:43,230 INFO L226 Difference]: Without dead ends: 103409 [2023-12-22 01:28:43,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5611 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 01:28:43,258 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 5533 mSDsluCounter, 33090 mSDsCounter, 0 mSdLazyCounter, 7121 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5533 SdHoareTripleChecker+Valid, 34906 SdHoareTripleChecker+Invalid, 7151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 7121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:43,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5533 Valid, 34906 Invalid, 7151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 7121 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-12-22 01:28:43,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103409 states. [2023-12-22 01:28:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103409 to 83010. [2023-12-22 01:28:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83010 states, 83008 states have (on average 1.184982170393215) internal successors, (98363), 83009 states have internal predecessors, (98363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83010 states to 83010 states and 98363 transitions. [2023-12-22 01:28:51,445 INFO L78 Accepts]: Start accepts. Automaton has 83010 states and 98363 transitions. Word has length 218 [2023-12-22 01:28:51,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 83010 states and 98363 transitions. [2023-12-22 01:28:51,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:28:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 83010 states and 98363 transitions. [2023-12-22 01:28:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:28:51,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:51,461 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:51,465 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 (48)] Ended with exit code 0 [2023-12-22 01:28:51,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:51,662 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:51,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1768280384, now seen corresponding path program 1 times [2023-12-22 01:28:51,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:51,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587200267] [2023-12-22 01:28:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:51,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:51,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:51,664 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:28:51,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 01:28:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:51,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:28:51,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:54,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:55,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587200267] [2023-12-22 01:28:55,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587200267] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:55,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:55,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:28:55,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360364295] [2023-12-22 01:28:55,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:55,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:28:55,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:28:55,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:28:55,543 INFO L87 Difference]: Start difference. First operand 83010 states and 98363 transitions. Second operand has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:31,311 INFO L93 Difference]: Finished difference Result 123460 states and 145417 transitions. [2023-12-22 01:29:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:29:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 0 states have call successors, (0), 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 218 [2023-12-22 01:29:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:31,444 INFO L225 Difference]: With dead ends: 123460 [2023-12-22 01:29:31,444 INFO L226 Difference]: Without dead ends: 102756 [2023-12-22 01:29:31,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7024 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:29:31,472 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 5825 mSDsluCounter, 39696 mSDsCounter, 0 mSdLazyCounter, 8702 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5825 SdHoareTripleChecker+Valid, 41495 SdHoareTripleChecker+Invalid, 8734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 8702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:31,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5825 Valid, 41495 Invalid, 8734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 8702 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-12-22 01:29:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102756 states. [2023-12-22 01:29:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102756 to 81297. [2023-12-22 01:29:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81297 states, 81295 states have (on average 1.1824466449351128) internal successors, (96127), 81296 states have internal predecessors, (96127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81297 states to 81297 states and 96127 transitions. [2023-12-22 01:29:40,058 INFO L78 Accepts]: Start accepts. Automaton has 81297 states and 96127 transitions. Word has length 218 [2023-12-22 01:29:40,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:40,059 INFO L495 AbstractCegarLoop]: Abstraction has 81297 states and 96127 transitions. [2023-12-22 01:29:40,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:29:40,059 INFO L276 IsEmpty]: Start isEmpty. Operand 81297 states and 96127 transitions. [2023-12-22 01:29:40,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-22 01:29:40,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:40,071 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:29:40,075 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 (49)] Forceful destruction successful, exit code 0 [2023-12-22 01:29:40,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:40,272 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:40,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1855313172, now seen corresponding path program 1 times [2023-12-22 01:29:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:40,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963381248] [2023-12-22 01:29:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:29:40,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:29:40,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:40,274 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:29:40,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 01:29:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:29:40,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:29:40,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:29:43,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:29:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:29:45,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:45,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963381248] [2023-12-22 01:29:45,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963381248] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:29:45,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:29:45,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:29:45,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771202373] [2023-12-22 01:29:45,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:29:45,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:29:45,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:45,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:29:45,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:29:45,089 INFO L87 Difference]: Start difference. First operand 81297 states and 96127 transitions. Second operand has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:22,762 INFO L93 Difference]: Finished difference Result 187522 states and 218709 transitions. [2023-12-22 01:30:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:30:22,762 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 0 states have call successors, (0), 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 219 [2023-12-22 01:30:22,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:22,938 INFO L225 Difference]: With dead ends: 187522 [2023-12-22 01:30:22,938 INFO L226 Difference]: Without dead ends: 174399 [2023-12-22 01:30:22,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 01:30:22,973 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 3988 mSDsluCounter, 41872 mSDsCounter, 0 mSdLazyCounter, 7755 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 43615 SdHoareTripleChecker+Invalid, 7776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 7755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:22,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3988 Valid, 43615 Invalid, 7776 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [21 Valid, 7755 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-22 01:30:23,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174399 states. [2023-12-22 01:30:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174399 to 156512. [2023-12-22 01:30:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156512 states, 156510 states have (on average 1.1698357932400485) internal successors, (183091), 156511 states have internal predecessors, (183091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:40,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156512 states to 156512 states and 183091 transitions. [2023-12-22 01:30:40,160 INFO L78 Accepts]: Start accepts. Automaton has 156512 states and 183091 transitions. Word has length 219 [2023-12-22 01:30:40,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:40,160 INFO L495 AbstractCegarLoop]: Abstraction has 156512 states and 183091 transitions. [2023-12-22 01:30:40,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:30:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 156512 states and 183091 transitions. [2023-12-22 01:30:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 01:30:40,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:40,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:30:40,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 01:30:40,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:40,403 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:40,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:40,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1977672822, now seen corresponding path program 1 times [2023-12-22 01:30:40,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:40,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693392588] [2023-12-22 01:30:40,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:40,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:40,406 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:30:40,407 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 (51)] Waiting until timeout for monitored process [2023-12-22 01:30:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:40,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:30:40,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:41,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:41,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:41,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693392588] [2023-12-22 01:30:41,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693392588] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:41,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:41,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:30:41,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283777968] [2023-12-22 01:30:41,974 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:41,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 01:30:41,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:41,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 01:30:41,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:30:41,977 INFO L87 Difference]: Start difference. First operand 156512 states and 183091 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:32:46,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:46,750 INFO L93 Difference]: Finished difference Result 174647 states and 208483 transitions. [2023-12-22 01:32:46,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 01:32:46,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-12-22 01:32:46,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:46,931 INFO L225 Difference]: With dead ends: 174647 [2023-12-22 01:32:46,932 INFO L226 Difference]: Without dead ends: 163271 [2023-12-22 01:32:46,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 01:32:46,953 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 6569 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 9806 mSolverCounterSat, 2928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6569 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 12734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2928 IncrementalHoareTripleChecker+Valid, 9806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:46,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6569 Valid, 611 Invalid, 12734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2928 Valid, 9806 Invalid, 0 Unknown, 0 Unchecked, 108.2s Time] [2023-12-22 01:32:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163271 states. Received shutdown request... [2023-12-22 01:33:02,896 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 (51)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:33:02,896 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:33:03,925 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 (51)] Forceful destruction successful, exit code 0 [2023-12-22 01:33:04,097 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 [2023-12-22 01:33:04,135 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 [2023-12-22 01:33:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163271 to 161018. [2023-12-22 01:33:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161018 states, 161016 states have (on average 1.1691819446514633) internal successors, (188257), 161017 states have internal predecessors, (188257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 01:33:04,794 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 01:33:04,795 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-22 01:33:04,796 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 01:33:04,799 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:33:04,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 01:33:04,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:33:04 BoogieIcfgContainer [2023-12-22 01:33:04,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 01:33:04,802 INFO L158 Benchmark]: Toolchain (without parser) took 822513.65ms. Allocated memory was 264.2MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 196.0MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 3.9GB. Max. memory is 8.0GB. [2023-12-22 01:33:04,802 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 01:33:04,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1696.55ms. Allocated memory is still 264.2MB. Free memory was 196.0MB in the beginning and 150.9MB in the end (delta: 45.1MB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. [2023-12-22 01:33:04,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 197.84ms. Allocated memory is still 264.2MB. Free memory was 150.4MB in the beginning and 114.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 01:33:04,802 INFO L158 Benchmark]: Boogie Preprocessor took 381.74ms. Allocated memory was 264.2MB in the beginning and 343.9MB in the end (delta: 79.7MB). Free memory was 114.7MB in the beginning and 242.5MB in the end (delta: -127.8MB). Peak memory consumption was 41.0MB. Max. memory is 8.0GB. [2023-12-22 01:33:04,802 INFO L158 Benchmark]: RCFGBuilder took 24521.70ms. Allocated memory was 343.9MB in the beginning and 552.6MB in the end (delta: 208.7MB). Free memory was 256.7MB in the beginning and 217.4MB in the end (delta: 39.3MB). Peak memory consumption was 247.8MB. Max. memory is 8.0GB. [2023-12-22 01:33:04,803 INFO L158 Benchmark]: TraceAbstraction took 795666.79ms. Allocated memory was 552.6MB in the beginning and 5.9GB in the end (delta: 5.4GB). Free memory was 216.3MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. [2023-12-22 01:33:04,803 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1696.55ms. Allocated memory is still 264.2MB. Free memory was 196.0MB in the beginning and 150.9MB in the end (delta: 45.1MB). Peak memory consumption was 95.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 197.84ms. Allocated memory is still 264.2MB. Free memory was 150.4MB in the beginning and 114.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 381.74ms. Allocated memory was 264.2MB in the beginning and 343.9MB in the end (delta: 79.7MB). Free memory was 114.7MB in the beginning and 242.5MB in the end (delta: -127.8MB). Peak memory consumption was 41.0MB. Max. memory is 8.0GB. * RCFGBuilder took 24521.70ms. Allocated memory was 343.9MB in the beginning and 552.6MB in the end (delta: 208.7MB). Free memory was 256.7MB in the beginning and 217.4MB in the end (delta: 39.3MB). Peak memory consumption was 247.8MB. Max. memory is 8.0GB. * TraceAbstraction took 795666.79ms. Allocated memory was 552.6MB in the beginning and 5.9GB in the end (delta: 5.4GB). Free memory was 216.3MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 3.7GB. 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: 730]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 730). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 514]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 514). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 849 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 795.6s, OverallIterations: 50, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 574.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210558 SdHoareTripleChecker+Valid, 350.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210558 mSDsluCounter, 563213 SdHoareTripleChecker+Invalid, 297.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 487061 mSDsCounter, 7495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91262 IncrementalHoareTripleChecker+Invalid, 98757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7495 mSolverCounterUnsat, 76152 mSDtfsCounter, 91262 mSolverCounterSat, 1.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11652 GetRequests, 9994 SyntacticMatches, 0 SemanticMatches, 1658 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38089 ImplicationChecksByTransitivity, 102.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156512occurred in iteration=49, InterpolantAutomatonStates: 1257, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 126.1s AutomataMinimizationTime, 50 MinimizatonAttempts, 389861 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 78.6s InterpolantComputationTime, 6603 NumberOfCodeBlocks, 5923 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 10615 ConstructedInterpolants, 2916 QuantifiedInterpolants, 140684 SizeOfPredicates, 256 NumberOfNonLiveVariables, 13908 ConjunctsInSsa, 417 ConjunctsInUnsatCore, 76 InterpolantComputations, 24 PerfectInterpolantSequences, 3911/9355 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