/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/Problem05_label48+token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:35:19,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:35:19,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:35:19,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:35:19,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:35:19,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:35:19,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:35:19,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:35:19,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:35:19,408 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:35:19,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:35:19,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:35:19,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:35:19,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:35:19,410 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:35:19,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:35:19,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:35:19,411 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:35:19,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:35:19,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:35:19,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:35:19,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:35:19,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:35:19,412 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:35:19,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:35:19,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:35:19,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:35:19,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:35:19,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:35:19,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:35:19,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:35:19,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:35:19,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:35:19,415 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:35:19,415 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:35:19,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:35:19,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:35:19,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:35:19,648 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:35:19,648 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:35:19,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.04.cil-1.c [2023-12-16 07:35:20,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:35:21,115 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:35:21,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.04.cil-1.c [2023-12-16 07:35:21,164 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec353e548/504941f60c23495baca569b87df8d5f8/FLAGbbaa57888 [2023-12-16 07:35:21,179 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec353e548/504941f60c23495baca569b87df8d5f8 [2023-12-16 07:35:21,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:35:21,182 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:35:21,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:35:21,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:35:21,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:35:21,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:35:21" (1/1) ... [2023-12-16 07:35:21,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f36ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:21, skipping insertion in model container [2023-12-16 07:35:21,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:35:21" (1/1) ... [2023-12-16 07:35:21,337 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:35:22,536 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/Problem05_label48+token_ring.04.cil-1.c[375709,375722] [2023-12-16 07:35:22,569 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/Problem05_label48+token_ring.04.cil-1.c[383339,383352] [2023-12-16 07:35:22,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:35:22,702 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:35:23,316 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/Problem05_label48+token_ring.04.cil-1.c[375709,375722] [2023-12-16 07:35:23,324 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/Problem05_label48+token_ring.04.cil-1.c[383339,383352] [2023-12-16 07:35:23,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:35:23,384 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:35:23,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23 WrapperNode [2023-12-16 07:35:23,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:35:23,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:35:23,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:35:23,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:35:23,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:23,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:23,726 INFO L138 Inliner]: procedures = 53, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12727 [2023-12-16 07:35:23,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:35:23,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:35:23,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:35:23,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:35:23,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:23,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:23,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:23,865 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:35:23,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:23,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:24,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:24,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:24,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:24,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:24,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:35:24,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:35:24,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:35:24,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:35:24,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (1/1) ... [2023-12-16 07:35:24,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:35:24,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:35:24,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:35:24,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:35:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:35:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:35:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:35:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:35:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:35:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:35:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:35:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:35:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:35:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:35:24,394 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:35:24,396 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:35:31,803 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:35:31,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:35:31,871 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-12-16 07:35:31,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:35:31 BoogieIcfgContainer [2023-12-16 07:35:31,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:35:31,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:35:31,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:35:31,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:35:31,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:35:21" (1/3) ... [2023-12-16 07:35:31,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36613517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:35:31, skipping insertion in model container [2023-12-16 07:35:31,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:35:23" (2/3) ... [2023-12-16 07:35:31,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36613517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:35:31, skipping insertion in model container [2023-12-16 07:35:31,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:35:31" (3/3) ... [2023-12-16 07:35:31,877 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.04.cil-1.c [2023-12-16 07:35:31,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:35:31,889 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:35:31,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:35:31,979 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;@7e83761c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:35:31,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:35:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 07:35:31,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:31,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:31,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:31,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:32,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1377940007, now seen corresponding path program 1 times [2023-12-16 07:35:32,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:32,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897225105] [2023-12-16 07:35:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:32,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:32,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:32,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:32,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:35:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:32,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:32,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:32,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:32,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:32,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897225105] [2023-12-16 07:35:32,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897225105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:32,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:32,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:35:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336320616] [2023-12-16 07:35:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:32,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:32,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:32,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:32,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:32,290 INFO L87 Difference]: Start difference. First operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:32,427 INFO L93 Difference]: Finished difference Result 4570 states and 8577 transitions. [2023-12-16 07:35:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:32,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:32,449 INFO L225 Difference]: With dead ends: 4570 [2023-12-16 07:35:32,449 INFO L226 Difference]: Without dead ends: 2283 [2023-12-16 07:35:32,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:32,460 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 248 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 8150 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:32,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 8150 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:32,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2023-12-16 07:35:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2283. [2023-12-16 07:35:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2257 states have (on average 1.8489144882587505) internal successors, (4173), 2259 states have internal predecessors, (4173), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 07:35:32,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 4209 transitions. [2023-12-16 07:35:32,559 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 4209 transitions. Word has length 81 [2023-12-16 07:35:32,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:32,559 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 4209 transitions. [2023-12-16 07:35:32,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 4209 transitions. [2023-12-16 07:35:32,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:32,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:32,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:32,581 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 [2023-12-16 07:35:32,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:32,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:32,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash 490717161, now seen corresponding path program 1 times [2023-12-16 07:35:32,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:32,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55132034] [2023-12-16 07:35:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:32,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:32,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:32,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:32,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:35:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:32,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:32,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:32,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:32,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:32,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55132034] [2023-12-16 07:35:32,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55132034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:32,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:32,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:32,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970687085] [2023-12-16 07:35:32,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:32,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:32,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:32,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:32,934 INFO L87 Difference]: Start difference. First operand 2283 states and 4209 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:33,334 INFO L93 Difference]: Finished difference Result 2604 states and 4714 transitions. [2023-12-16 07:35:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:35:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:33,345 INFO L225 Difference]: With dead ends: 2604 [2023-12-16 07:35:33,345 INFO L226 Difference]: Without dead ends: 2452 [2023-12-16 07:35:33,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:33,347 INFO L413 NwaCegarLoop]: 4138 mSDtfsCounter, 4402 mSDsluCounter, 8356 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4414 SdHoareTripleChecker+Valid, 12494 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:33,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4414 Valid, 12494 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:35:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2023-12-16 07:35:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2439. [2023-12-16 07:35:33,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8340994567488509) internal successors, (4389), 2396 states have internal predecessors, (4389), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:35:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4452 transitions. [2023-12-16 07:35:33,395 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4452 transitions. Word has length 81 [2023-12-16 07:35:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:33,396 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4452 transitions. [2023-12-16 07:35:33,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4452 transitions. [2023-12-16 07:35:33,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:33,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:33,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:33,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:33,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:33,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:33,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:33,602 INFO L85 PathProgramCache]: Analyzing trace with hash -927081943, now seen corresponding path program 1 times [2023-12-16 07:35:33,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:33,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060519265] [2023-12-16 07:35:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:33,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:33,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:33,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:33,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:35:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:33,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:33,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:33,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:33,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:33,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060519265] [2023-12-16 07:35:33,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060519265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:33,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:33,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076813902] [2023-12-16 07:35:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:33,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:33,740 INFO L87 Difference]: Start difference. First operand 2439 states and 4452 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:33,997 INFO L93 Difference]: Finished difference Result 2747 states and 4937 transitions. [2023-12-16 07:35:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:34,006 INFO L225 Difference]: With dead ends: 2747 [2023-12-16 07:35:34,006 INFO L226 Difference]: Without dead ends: 2439 [2023-12-16 07:35:34,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:34,009 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 4275 mSDsluCounter, 8148 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 12258 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:34,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 12258 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:34,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-12-16 07:35:34,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2023-12-16 07:35:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8311742582532387) internal successors, (4382), 2396 states have internal predecessors, (4382), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:35:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4445 transitions. [2023-12-16 07:35:34,064 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4445 transitions. Word has length 81 [2023-12-16 07:35:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:34,065 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4445 transitions. [2023-12-16 07:35:34,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:34,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4445 transitions. [2023-12-16 07:35:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:34,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:34,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:34,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:34,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:34,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:34,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2081196055, now seen corresponding path program 1 times [2023-12-16 07:35:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490672773] [2023-12-16 07:35:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:34,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:34,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:34,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:35:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:34,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:34,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:34,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:34,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:34,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:34,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490672773] [2023-12-16 07:35:34,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490672773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:34,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:34,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:34,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214852186] [2023-12-16 07:35:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:34,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:34,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:34,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:34,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:34,421 INFO L87 Difference]: Start difference. First operand 2439 states and 4445 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:34,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:34,678 INFO L93 Difference]: Finished difference Result 2747 states and 4923 transitions. [2023-12-16 07:35:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:34,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:34,687 INFO L225 Difference]: With dead ends: 2747 [2023-12-16 07:35:34,687 INFO L226 Difference]: Without dead ends: 2439 [2023-12-16 07:35:34,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:34,689 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4269 mSDsluCounter, 8144 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 12251 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:34,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 12251 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:34,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-12-16 07:35:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2023-12-16 07:35:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8282490597576264) internal successors, (4375), 2396 states have internal predecessors, (4375), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:35:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4438 transitions. [2023-12-16 07:35:34,734 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4438 transitions. Word has length 81 [2023-12-16 07:35:34,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:34,734 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4438 transitions. [2023-12-16 07:35:34,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:34,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4438 transitions. [2023-12-16 07:35:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:34,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:34,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:34,741 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 [2023-12-16 07:35:34,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:34,939 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:34,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1481803815, now seen corresponding path program 1 times [2023-12-16 07:35:34,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:34,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751232772] [2023-12-16 07:35:34,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:34,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:34,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:34,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:34,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:35:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:35,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:35,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:35,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:35,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:35,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751232772] [2023-12-16 07:35:35,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751232772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:35,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:35,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192631387] [2023-12-16 07:35:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:35,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:35,055 INFO L87 Difference]: Start difference. First operand 2439 states and 4438 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:35,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:35,369 INFO L93 Difference]: Finished difference Result 2747 states and 4909 transitions. [2023-12-16 07:35:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:35,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:35,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:35,377 INFO L225 Difference]: With dead ends: 2747 [2023-12-16 07:35:35,378 INFO L226 Difference]: Without dead ends: 2439 [2023-12-16 07:35:35,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:35,379 INFO L413 NwaCegarLoop]: 4104 mSDtfsCounter, 4263 mSDsluCounter, 8140 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 12244 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:35,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 12244 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:35,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-12-16 07:35:35,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2023-12-16 07:35:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8253238612620142) internal successors, (4368), 2396 states have internal predecessors, (4368), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-16 07:35:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4431 transitions. [2023-12-16 07:35:35,430 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4431 transitions. Word has length 81 [2023-12-16 07:35:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:35,430 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4431 transitions. [2023-12-16 07:35:35,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4431 transitions. [2023-12-16 07:35:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:35,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:35,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:35,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:35,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:35,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:35,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:35,636 INFO L85 PathProgramCache]: Analyzing trace with hash -338389529, now seen corresponding path program 1 times [2023-12-16 07:35:35,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:35,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631728175] [2023-12-16 07:35:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:35,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:35,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:35,637 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:35,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:35:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:35,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:35,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:35,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:35,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:35,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631728175] [2023-12-16 07:35:35,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631728175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:35,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:35,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:35,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450494404] [2023-12-16 07:35:35,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:35,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:35,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:35,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:35,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:35,749 INFO L87 Difference]: Start difference. First operand 2439 states and 4431 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:36,039 INFO L93 Difference]: Finished difference Result 2817 states and 5007 transitions. [2023-12-16 07:35:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:36,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:36,048 INFO L225 Difference]: With dead ends: 2817 [2023-12-16 07:35:36,048 INFO L226 Difference]: Without dead ends: 2509 [2023-12-16 07:35:36,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:36,051 INFO L413 NwaCegarLoop]: 4102 mSDtfsCounter, 4298 mSDsluCounter, 8136 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4310 SdHoareTripleChecker+Valid, 12238 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:36,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4310 Valid, 12238 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:36,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2023-12-16 07:35:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2509. [2023-12-16 07:35:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2457 states have (on average 1.8123728123728124) internal successors, (4453), 2460 states have internal predecessors, (4453), 33 states have call successors, (33), 16 states have call predecessors, (33), 17 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 07:35:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 4520 transitions. [2023-12-16 07:35:36,100 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 4520 transitions. Word has length 81 [2023-12-16 07:35:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:36,101 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 4520 transitions. [2023-12-16 07:35:36,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 4520 transitions. [2023-12-16 07:35:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:36,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:36,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:36,120 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 [2023-12-16 07:35:36,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:36,321 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:36,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:36,321 INFO L85 PathProgramCache]: Analyzing trace with hash -434130170, now seen corresponding path program 1 times [2023-12-16 07:35:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:36,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156258419] [2023-12-16 07:35:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:36,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:36,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:36,323 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:36,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:35:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:36,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:36,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:36,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:36,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:36,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156258419] [2023-12-16 07:35:36,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156258419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:36,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:36,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:36,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097266042] [2023-12-16 07:35:36,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:36,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:36,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:36,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:36,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:36,437 INFO L87 Difference]: Start difference. First operand 2509 states and 4520 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:36,715 INFO L93 Difference]: Finished difference Result 2957 states and 5185 transitions. [2023-12-16 07:35:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:36,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:36,724 INFO L225 Difference]: With dead ends: 2957 [2023-12-16 07:35:36,724 INFO L226 Difference]: Without dead ends: 2579 [2023-12-16 07:35:36,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:36,726 INFO L413 NwaCegarLoop]: 4099 mSDtfsCounter, 4291 mSDsluCounter, 8132 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4303 SdHoareTripleChecker+Valid, 12231 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:36,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4303 Valid, 12231 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:36,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2023-12-16 07:35:36,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 2579. [2023-12-16 07:35:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2579 states, 2521 states have (on average 1.7984926616422054) internal successors, (4534), 2524 states have internal predecessors, (4534), 35 states have call successors, (35), 20 states have call predecessors, (35), 21 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 07:35:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 4605 transitions. [2023-12-16 07:35:36,776 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 4605 transitions. Word has length 81 [2023-12-16 07:35:36,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:36,776 INFO L495 AbstractCegarLoop]: Abstraction has 2579 states and 4605 transitions. [2023-12-16 07:35:36,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:36,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 4605 transitions. [2023-12-16 07:35:36,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:36,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:36,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:36,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:36,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:36,978 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:36,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:36,979 INFO L85 PathProgramCache]: Analyzing trace with hash 667843910, now seen corresponding path program 1 times [2023-12-16 07:35:36,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:36,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493221807] [2023-12-16 07:35:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:36,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:36,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:36,982 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:36,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:35:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:37,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:37,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:37,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:37,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:37,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493221807] [2023-12-16 07:35:37,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493221807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:37,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:37,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:37,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230920209] [2023-12-16 07:35:37,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:37,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:37,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:37,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:37,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:37,101 INFO L87 Difference]: Start difference. First operand 2579 states and 4605 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:37,377 INFO L93 Difference]: Finished difference Result 3097 states and 5355 transitions. [2023-12-16 07:35:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:37,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:37,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:37,385 INFO L225 Difference]: With dead ends: 3097 [2023-12-16 07:35:37,385 INFO L226 Difference]: Without dead ends: 2649 [2023-12-16 07:35:37,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:37,388 INFO L413 NwaCegarLoop]: 4096 mSDtfsCounter, 4285 mSDsluCounter, 8128 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 12224 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:37,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 12224 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:37,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2023-12-16 07:35:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 2649. [2023-12-16 07:35:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2585 states have (on average 1.783752417794971) internal successors, (4611), 2588 states have internal predecessors, (4611), 37 states have call successors, (37), 24 states have call predecessors, (37), 25 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-16 07:35:37,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4686 transitions. [2023-12-16 07:35:37,450 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4686 transitions. Word has length 81 [2023-12-16 07:35:37,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:37,450 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 4686 transitions. [2023-12-16 07:35:37,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4686 transitions. [2023-12-16 07:35:37,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:37,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:37,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:37,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:37,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:37,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:37,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:37,656 INFO L85 PathProgramCache]: Analyzing trace with hash 536667429, now seen corresponding path program 1 times [2023-12-16 07:35:37,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:37,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275508220] [2023-12-16 07:35:37,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:37,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:37,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:37,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:37,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:35:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:37,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:37,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:37,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:37,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:37,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275508220] [2023-12-16 07:35:37,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275508220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:37,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:37,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706009475] [2023-12-16 07:35:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:37,766 INFO L87 Difference]: Start difference. First operand 2649 states and 4686 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:38,033 INFO L93 Difference]: Finished difference Result 3237 states and 5517 transitions. [2023-12-16 07:35:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:38,045 INFO L225 Difference]: With dead ends: 3237 [2023-12-16 07:35:38,045 INFO L226 Difference]: Without dead ends: 2719 [2023-12-16 07:35:38,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:38,047 INFO L413 NwaCegarLoop]: 4093 mSDtfsCounter, 4278 mSDsluCounter, 8124 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4290 SdHoareTripleChecker+Valid, 12217 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:38,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4290 Valid, 12217 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2023-12-16 07:35:38,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2023-12-16 07:35:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2649 states have (on average 1.7682144205360513) internal successors, (4684), 2652 states have internal predecessors, (4684), 39 states have call successors, (39), 28 states have call predecessors, (39), 29 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 4763 transitions. [2023-12-16 07:35:38,116 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 4763 transitions. Word has length 81 [2023-12-16 07:35:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:38,117 INFO L495 AbstractCegarLoop]: Abstraction has 2719 states and 4763 transitions. [2023-12-16 07:35:38,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 4763 transitions. [2023-12-16 07:35:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:38,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:38,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:38,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:38,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:38,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:38,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:38,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1907380762, now seen corresponding path program 1 times [2023-12-16 07:35:38,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:38,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230189643] [2023-12-16 07:35:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:38,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:38,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:38,325 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:38,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:35:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:38,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:38,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:38,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:38,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230189643] [2023-12-16 07:35:38,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230189643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:38,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:38,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:38,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778340611] [2023-12-16 07:35:38,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:38,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:38,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:38,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:38,435 INFO L87 Difference]: Start difference. First operand 2719 states and 4763 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:38,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:38,701 INFO L93 Difference]: Finished difference Result 3371 states and 5663 transitions. [2023-12-16 07:35:38,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:38,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:38,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:38,724 INFO L225 Difference]: With dead ends: 3371 [2023-12-16 07:35:38,725 INFO L226 Difference]: Without dead ends: 2783 [2023-12-16 07:35:38,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:38,728 INFO L413 NwaCegarLoop]: 4090 mSDtfsCounter, 4271 mSDsluCounter, 8120 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 12210 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:38,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 12210 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:38,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2023-12-16 07:35:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2023-12-16 07:35:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2711 states have (on average 1.752489856141645) internal successors, (4751), 2714 states have internal predecessors, (4751), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 4830 transitions. [2023-12-16 07:35:38,860 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 4830 transitions. Word has length 81 [2023-12-16 07:35:38,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:38,860 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 4830 transitions. [2023-12-16 07:35:38,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 4830 transitions. [2023-12-16 07:35:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:38,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:38,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:38,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:39,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:39,066 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:39,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash 954141606, now seen corresponding path program 1 times [2023-12-16 07:35:39,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:39,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407665335] [2023-12-16 07:35:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:39,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:39,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:39,068 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:39,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:35:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:39,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:39,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:39,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:39,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:39,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:39,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407665335] [2023-12-16 07:35:39,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407665335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:39,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:39,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:39,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631782862] [2023-12-16 07:35:39,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:39,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:39,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:39,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:39,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:39,149 INFO L87 Difference]: Start difference. First operand 2783 states and 4830 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:39,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:39,241 INFO L93 Difference]: Finished difference Result 3490 states and 5782 transitions. [2023-12-16 07:35:39,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:39,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:39,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:39,247 INFO L225 Difference]: With dead ends: 3490 [2023-12-16 07:35:39,247 INFO L226 Difference]: Without dead ends: 2839 [2023-12-16 07:35:39,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:39,249 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 38 mSDsluCounter, 8319 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 12483 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:39,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 12483 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:39,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2023-12-16 07:35:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2787. [2023-12-16 07:35:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2715 states have (on average 1.7476979742173113) internal successors, (4745), 2718 states have internal predecessors, (4745), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:39,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 4824 transitions. [2023-12-16 07:35:39,303 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 4824 transitions. Word has length 81 [2023-12-16 07:35:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:39,304 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 4824 transitions. [2023-12-16 07:35:39,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 4824 transitions. [2023-12-16 07:35:39,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:39,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:39,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:39,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:39,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:39,509 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:39,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1074444504, now seen corresponding path program 1 times [2023-12-16 07:35:39,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:39,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171364610] [2023-12-16 07:35:39,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:39,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:39,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:39,511 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:39,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:35:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:39,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:39,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:39,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:39,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:39,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171364610] [2023-12-16 07:35:39,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171364610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:39,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:39,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:39,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469403498] [2023-12-16 07:35:39,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:39,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:39,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:39,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:39,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:39,607 INFO L87 Difference]: Start difference. First operand 2787 states and 4824 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:39,690 INFO L93 Difference]: Finished difference Result 3486 states and 5754 transitions. [2023-12-16 07:35:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:39,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:39,696 INFO L225 Difference]: With dead ends: 3486 [2023-12-16 07:35:39,696 INFO L226 Difference]: Without dead ends: 2831 [2023-12-16 07:35:39,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:39,698 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 29 mSDsluCounter, 8320 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12484 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:39,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12484 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:39,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2023-12-16 07:35:39,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2791. [2023-12-16 07:35:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2719 states have (on average 1.742920191246782) internal successors, (4739), 2722 states have internal predecessors, (4739), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:39,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4818 transitions. [2023-12-16 07:35:39,762 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4818 transitions. Word has length 81 [2023-12-16 07:35:39,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:39,762 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 4818 transitions. [2023-12-16 07:35:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:39,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4818 transitions. [2023-12-16 07:35:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:39,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:39,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:39,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:39,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:39,968 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:39,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash 853828198, now seen corresponding path program 1 times [2023-12-16 07:35:39,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:39,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94009020] [2023-12-16 07:35:39,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:39,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:39,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:39,969 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:39,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:35:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:40,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:40,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:40,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:40,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:40,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94009020] [2023-12-16 07:35:40,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94009020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:40,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:40,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:40,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673599043] [2023-12-16 07:35:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:40,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:40,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:40,043 INFO L87 Difference]: Start difference. First operand 2791 states and 4818 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:40,143 INFO L93 Difference]: Finished difference Result 3482 states and 5726 transitions. [2023-12-16 07:35:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:40,149 INFO L225 Difference]: With dead ends: 3482 [2023-12-16 07:35:40,149 INFO L226 Difference]: Without dead ends: 2823 [2023-12-16 07:35:40,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:40,151 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 20 mSDsluCounter, 8321 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12485 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:40,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12485 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:40,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2023-12-16 07:35:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2795. [2023-12-16 07:35:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 2723 states have (on average 1.738156445097319) internal successors, (4733), 2726 states have internal predecessors, (4733), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:40,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 4812 transitions. [2023-12-16 07:35:40,203 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 4812 transitions. Word has length 81 [2023-12-16 07:35:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:40,203 INFO L495 AbstractCegarLoop]: Abstraction has 2795 states and 4812 transitions. [2023-12-16 07:35:40,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 4812 transitions. [2023-12-16 07:35:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:40,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:40,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:40,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:40,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:40,408 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:40,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1277474920, now seen corresponding path program 1 times [2023-12-16 07:35:40,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760327428] [2023-12-16 07:35:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:40,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:40,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:40,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:35:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:40,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:40,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:40,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:40,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:40,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760327428] [2023-12-16 07:35:40,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760327428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:40,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:40,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:40,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170896973] [2023-12-16 07:35:40,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:40,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:40,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:40,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:40,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:40,512 INFO L87 Difference]: Start difference. First operand 2795 states and 4812 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:40,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:40,621 INFO L93 Difference]: Finished difference Result 3478 states and 5698 transitions. [2023-12-16 07:35:40,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:40,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:40,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:40,628 INFO L225 Difference]: With dead ends: 3478 [2023-12-16 07:35:40,628 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:35:40,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:40,631 INFO L413 NwaCegarLoop]: 4164 mSDtfsCounter, 11 mSDsluCounter, 8322 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12486 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:40,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12486 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:35:40,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2799. [2023-12-16 07:35:40,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2727 states have (on average 1.7334066740007334) internal successors, (4727), 2730 states have internal predecessors, (4727), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4806 transitions. [2023-12-16 07:35:40,680 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4806 transitions. Word has length 81 [2023-12-16 07:35:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:40,681 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4806 transitions. [2023-12-16 07:35:40,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4806 transitions. [2023-12-16 07:35:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:40,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:40,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:40,690 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 (15)] Ended with exit code 0 [2023-12-16 07:35:40,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:40,886 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:40,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:40,886 INFO L85 PathProgramCache]: Analyzing trace with hash 883108134, now seen corresponding path program 1 times [2023-12-16 07:35:40,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:40,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311613898] [2023-12-16 07:35:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:40,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:40,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:40,887 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:40,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:35:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:40,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:35:40,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:41,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:41,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:41,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311613898] [2023-12-16 07:35:41,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311613898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:41,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:41,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:41,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432117049] [2023-12-16 07:35:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:41,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:35:41,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:35:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:41,050 INFO L87 Difference]: Start difference. First operand 2799 states and 4806 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:41,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:41,336 INFO L93 Difference]: Finished difference Result 3467 states and 5645 transitions. [2023-12-16 07:35:41,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:35:41,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-16 07:35:41,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:41,341 INFO L225 Difference]: With dead ends: 3467 [2023-12-16 07:35:41,341 INFO L226 Difference]: Without dead ends: 2799 [2023-12-16 07:35:41,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:35:41,343 INFO L413 NwaCegarLoop]: 4086 mSDtfsCounter, 4194 mSDsluCounter, 8116 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 12202 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:41,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 12202 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2023-12-16 07:35:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2023-12-16 07:35:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2727 states have (on average 1.7308397506417308) internal successors, (4720), 2730 states have internal predecessors, (4720), 39 states have call successors, (39), 30 states have call predecessors, (39), 31 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 07:35:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4799 transitions. [2023-12-16 07:35:41,414 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4799 transitions. Word has length 81 [2023-12-16 07:35:41,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:41,414 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 4799 transitions. [2023-12-16 07:35:41,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:35:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4799 transitions. [2023-12-16 07:35:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 07:35:41,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:41,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:41,421 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 [2023-12-16 07:35:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:41,628 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:41,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash -922330200, now seen corresponding path program 1 times [2023-12-16 07:35:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:41,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131922331] [2023-12-16 07:35:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:41,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:41,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:41,630 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:41,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:35:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:41,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:41,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:35:41,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:41,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:41,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131922331] [2023-12-16 07:35:41,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131922331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:41,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:41,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:35:41,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857846745] [2023-12-16 07:35:41,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:41,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:41,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:41,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:41,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:41,789 INFO L87 Difference]: Start difference. First operand 2799 states and 4799 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:35:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:41,933 INFO L93 Difference]: Finished difference Result 4108 states and 6436 transitions. [2023-12-16 07:35:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:41,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2023-12-16 07:35:41,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:41,940 INFO L225 Difference]: With dead ends: 4108 [2023-12-16 07:35:41,940 INFO L226 Difference]: Without dead ends: 3441 [2023-12-16 07:35:41,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:41,942 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 4093 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4093 SdHoareTripleChecker+Valid, 4375 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:41,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4093 Valid, 4375 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:35:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2023-12-16 07:35:42,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3439. [2023-12-16 07:35:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3301 states have (on average 1.6428355043926084) internal successors, (5423), 3307 states have internal predecessors, (5423), 74 states have call successors, (74), 60 states have call predecessors, (74), 62 states have return successors, (76), 72 states have call predecessors, (76), 74 states have call successors, (76) [2023-12-16 07:35:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 5573 transitions. [2023-12-16 07:35:42,047 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 5573 transitions. Word has length 81 [2023-12-16 07:35:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:42,048 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 5573 transitions. [2023-12-16 07:35:42,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:35:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 5573 transitions. [2023-12-16 07:35:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 07:35:42,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:42,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:42,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:42,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:42,254 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:42,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:42,255 INFO L85 PathProgramCache]: Analyzing trace with hash -497178965, now seen corresponding path program 1 times [2023-12-16 07:35:42,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:42,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828838224] [2023-12-16 07:35:42,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:42,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:42,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:42,256 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:42,257 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 [2023-12-16 07:35:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:42,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:35:42,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:35:42,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:42,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:42,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828838224] [2023-12-16 07:35:42,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828838224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:42,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:42,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66738958] [2023-12-16 07:35:42,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:42,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:42,490 INFO L87 Difference]: Start difference. First operand 3439 states and 5573 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:42,888 INFO L93 Difference]: Finished difference Result 5953 states and 8651 transitions. [2023-12-16 07:35:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:42,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 131 [2023-12-16 07:35:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:42,898 INFO L225 Difference]: With dead ends: 5953 [2023-12-16 07:35:42,898 INFO L226 Difference]: Without dead ends: 4647 [2023-12-16 07:35:42,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:42,903 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4225 mSDsluCounter, 4216 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:42,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4230 Valid, 8361 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2023-12-16 07:35:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 4645. [2023-12-16 07:35:43,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 4383 states have (on average 1.5375313712069358) internal successors, (6739), 4397 states have internal predecessors, (6739), 136 states have call successors, (136), 112 states have call predecessors, (136), 124 states have return successors, (160), 136 states have call predecessors, (160), 136 states have call successors, (160) [2023-12-16 07:35:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 7035 transitions. [2023-12-16 07:35:43,063 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 7035 transitions. Word has length 131 [2023-12-16 07:35:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:43,064 INFO L495 AbstractCegarLoop]: Abstraction has 4645 states and 7035 transitions. [2023-12-16 07:35:43,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 7035 transitions. [2023-12-16 07:35:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 07:35:43,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:43,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:43,073 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 [2023-12-16 07:35:43,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:43,272 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:43,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash 292126512, now seen corresponding path program 1 times [2023-12-16 07:35:43,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:43,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033053654] [2023-12-16 07:35:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:43,273 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 [2023-12-16 07:35:43,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:43,274 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:43,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 07:35:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:43,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:35:43,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:35:43,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:43,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033053654] [2023-12-16 07:35:43,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033053654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:43,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969591924] [2023-12-16 07:35:43,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:43,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:43,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:43,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:43,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:43,499 INFO L87 Difference]: Start difference. First operand 4645 states and 7035 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:44,002 INFO L93 Difference]: Finished difference Result 9383 states and 12812 transitions. [2023-12-16 07:35:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:44,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 133 [2023-12-16 07:35:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:44,013 INFO L225 Difference]: With dead ends: 9383 [2023-12-16 07:35:44,014 INFO L226 Difference]: Without dead ends: 6871 [2023-12-16 07:35:44,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:44,017 INFO L413 NwaCegarLoop]: 4177 mSDtfsCounter, 4215 mSDsluCounter, 4244 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 8421 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:44,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 8421 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:44,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2023-12-16 07:35:44,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6869. [2023-12-16 07:35:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6869 states, 6372 states have (on average 1.436283741368487) internal successors, (9152), 6403 states have internal predecessors, (9152), 255 states have call successors, (255), 208 states have call predecessors, (255), 240 states have return successors, (323), 259 states have call predecessors, (323), 255 states have call successors, (323) [2023-12-16 07:35:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 9730 transitions. [2023-12-16 07:35:44,218 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 9730 transitions. Word has length 133 [2023-12-16 07:35:44,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:44,218 INFO L495 AbstractCegarLoop]: Abstraction has 6869 states and 9730 transitions. [2023-12-16 07:35:44,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 9730 transitions. [2023-12-16 07:35:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 07:35:44,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:44,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:44,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:44,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:44,426 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:44,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash -414470094, now seen corresponding path program 1 times [2023-12-16 07:35:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:44,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83327036] [2023-12-16 07:35:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:44,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:44,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:44,428 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:44,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 07:35:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:44,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:44,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 07:35:44,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:44,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:44,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83327036] [2023-12-16 07:35:44,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83327036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:44,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:44,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:35:44,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297929257] [2023-12-16 07:35:44,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:44,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:44,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:44,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:44,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:44,529 INFO L87 Difference]: Start difference. First operand 6869 states and 9730 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:35:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:44,720 INFO L93 Difference]: Finished difference Result 11599 states and 15471 transitions. [2023-12-16 07:35:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 133 [2023-12-16 07:35:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:44,733 INFO L225 Difference]: With dead ends: 11599 [2023-12-16 07:35:44,733 INFO L226 Difference]: Without dead ends: 6863 [2023-12-16 07:35:44,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:44,741 INFO L413 NwaCegarLoop]: 4160 mSDtfsCounter, 216 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 8117 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:44,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 8117 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:44,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6863 states. [2023-12-16 07:35:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6863 to 6863. [2023-12-16 07:35:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6863 states, 6369 states have (on average 1.4360182132202857) internal successors, (9146), 6399 states have internal predecessors, (9146), 252 states have call successors, (252), 208 states have call predecessors, (252), 240 states have return successors, (320), 256 states have call predecessors, (320), 252 states have call successors, (320) [2023-12-16 07:35:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6863 states to 6863 states and 9718 transitions. [2023-12-16 07:35:45,068 INFO L78 Accepts]: Start accepts. Automaton has 6863 states and 9718 transitions. Word has length 133 [2023-12-16 07:35:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:45,068 INFO L495 AbstractCegarLoop]: Abstraction has 6863 states and 9718 transitions. [2023-12-16 07:35:45,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:35:45,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6863 states and 9718 transitions. [2023-12-16 07:35:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 07:35:45,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:45,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:45,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:45,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:45,277 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:45,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1038449643, now seen corresponding path program 1 times [2023-12-16 07:35:45,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:45,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148033374] [2023-12-16 07:35:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:45,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:45,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:45,279 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:45,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 07:35:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:45,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:35:45,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:35:45,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:45,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:45,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148033374] [2023-12-16 07:35:45,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148033374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:45,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:45,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653616641] [2023-12-16 07:35:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:45,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:45,471 INFO L87 Difference]: Start difference. First operand 6863 states and 9718 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:46,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:46,005 INFO L93 Difference]: Finished difference Result 15740 states and 20505 transitions. [2023-12-16 07:35:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:46,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 135 [2023-12-16 07:35:46,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:46,028 INFO L225 Difference]: With dead ends: 15740 [2023-12-16 07:35:46,029 INFO L226 Difference]: Without dead ends: 11010 [2023-12-16 07:35:46,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:46,040 INFO L413 NwaCegarLoop]: 4163 mSDtfsCounter, 4208 mSDsluCounter, 4226 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 8389 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:46,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 8389 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2023-12-16 07:35:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 11008. [2023-12-16 07:35:46,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11008 states, 10071 states have (on average 1.3528944494091948) internal successors, (13625), 10138 states have internal predecessors, (13625), 471 states have call successors, (471), 384 states have call predecessors, (471), 464 states have return successors, (635), 487 states have call predecessors, (635), 471 states have call successors, (635) [2023-12-16 07:35:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11008 states to 11008 states and 14731 transitions. [2023-12-16 07:35:46,567 INFO L78 Accepts]: Start accepts. Automaton has 11008 states and 14731 transitions. Word has length 135 [2023-12-16 07:35:46,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:46,568 INFO L495 AbstractCegarLoop]: Abstraction has 11008 states and 14731 transitions. [2023-12-16 07:35:46,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 11008 states and 14731 transitions. [2023-12-16 07:35:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 07:35:46,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:46,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:46,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:46,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:46,780 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:46,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:46,780 INFO L85 PathProgramCache]: Analyzing trace with hash 608791337, now seen corresponding path program 1 times [2023-12-16 07:35:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:46,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16529127] [2023-12-16 07:35:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:46,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:46,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:46,782 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:46,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 07:35:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:46,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:46,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:46,881 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 07:35:46,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:46,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16529127] [2023-12-16 07:35:46,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16529127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:46,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:46,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:35:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481644290] [2023-12-16 07:35:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:46,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:46,883 INFO L87 Difference]: Start difference. First operand 11008 states and 14731 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:35:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:47,352 INFO L93 Difference]: Finished difference Result 19878 states and 25476 transitions. [2023-12-16 07:35:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:47,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 135 [2023-12-16 07:35:47,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:47,369 INFO L225 Difference]: With dead ends: 19878 [2023-12-16 07:35:47,369 INFO L226 Difference]: Without dead ends: 11003 [2023-12-16 07:35:47,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:47,380 INFO L413 NwaCegarLoop]: 4159 mSDtfsCounter, 214 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 8116 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:47,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 8116 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11003 states. [2023-12-16 07:35:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 11003. [2023-12-16 07:35:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11003 states, 10069 states have (on average 1.352765915185222) internal successors, (13621), 10135 states have internal predecessors, (13621), 468 states have call successors, (468), 384 states have call predecessors, (468), 464 states have return successors, (632), 484 states have call predecessors, (632), 468 states have call successors, (632) [2023-12-16 07:35:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11003 states to 11003 states and 14721 transitions. [2023-12-16 07:35:47,860 INFO L78 Accepts]: Start accepts. Automaton has 11003 states and 14721 transitions. Word has length 135 [2023-12-16 07:35:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:47,860 INFO L495 AbstractCegarLoop]: Abstraction has 11003 states and 14721 transitions. [2023-12-16 07:35:47,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:35:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand 11003 states and 14721 transitions. [2023-12-16 07:35:47,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 07:35:47,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:47,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:47,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:48,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:48,070 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:48,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:48,070 INFO L85 PathProgramCache]: Analyzing trace with hash -588644944, now seen corresponding path program 1 times [2023-12-16 07:35:48,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:48,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129737137] [2023-12-16 07:35:48,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:48,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:48,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:48,072 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:48,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 07:35:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:48,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:35:48,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:35:48,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:48,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:48,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129737137] [2023-12-16 07:35:48,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129737137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:48,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:48,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996016965] [2023-12-16 07:35:48,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:48,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:48,304 INFO L87 Difference]: Start difference. First operand 11003 states and 14721 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:49,243 INFO L93 Difference]: Finished difference Result 28091 states and 35299 transitions. [2023-12-16 07:35:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:35:49,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 137 [2023-12-16 07:35:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:49,282 INFO L225 Difference]: With dead ends: 28091 [2023-12-16 07:35:49,282 INFO L226 Difference]: Without dead ends: 19221 [2023-12-16 07:35:49,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:35:49,300 INFO L413 NwaCegarLoop]: 4153 mSDtfsCounter, 4207 mSDsluCounter, 4208 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:49,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 8361 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:35:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19221 states. [2023-12-16 07:35:50,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19221 to 19027. [2023-12-16 07:35:50,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19027 states, 17034 states have (on average 1.2890689209815662) internal successors, (21958), 17309 states have internal predecessors, (21958), 871 states have call successors, (871), 704 states have call predecessors, (871), 1120 states have return successors, (1484), 1015 states have call predecessors, (1484), 871 states have call successors, (1484) [2023-12-16 07:35:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19027 states to 19027 states and 24313 transitions. [2023-12-16 07:35:50,171 INFO L78 Accepts]: Start accepts. Automaton has 19027 states and 24313 transitions. Word has length 137 [2023-12-16 07:35:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:50,172 INFO L495 AbstractCegarLoop]: Abstraction has 19027 states and 24313 transitions. [2023-12-16 07:35:50,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:35:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 19027 states and 24313 transitions. [2023-12-16 07:35:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 07:35:50,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:50,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:50,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-16 07:35:50,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:50,391 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:50,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:50,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1023150542, now seen corresponding path program 1 times [2023-12-16 07:35:50,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:50,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698180166] [2023-12-16 07:35:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:50,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:50,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:50,393 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:35:50,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 07:35:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:50,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:50,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:50,502 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 07:35:50,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:50,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:50,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698180166] [2023-12-16 07:35:50,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698180166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:50,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:50,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:35:50,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145188314] [2023-12-16 07:35:50,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:50,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:50,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:50,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:50,504 INFO L87 Difference]: Start difference. First operand 19027 states and 24313 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:35:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:51,209 INFO L93 Difference]: Finished difference Result 35918 states and 44644 transitions. [2023-12-16 07:35:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 137 [2023-12-16 07:35:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:51,246 INFO L225 Difference]: With dead ends: 35918 [2023-12-16 07:35:51,246 INFO L226 Difference]: Without dead ends: 19023 [2023-12-16 07:35:51,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:51,277 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 212 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 8115 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:51,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 8115 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:51,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19023 states. [2023-12-16 07:35:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19023 to 19023. [2023-12-16 07:35:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19023 states, 17033 states have (on average 1.2890271825280337) internal successors, (21956), 17307 states have internal predecessors, (21956), 868 states have call successors, (868), 704 states have call predecessors, (868), 1120 states have return successors, (1480), 1012 states have call predecessors, (1480), 868 states have call successors, (1480) [2023-12-16 07:35:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19023 states to 19023 states and 24304 transitions. [2023-12-16 07:35:52,132 INFO L78 Accepts]: Start accepts. Automaton has 19023 states and 24304 transitions. Word has length 137 [2023-12-16 07:35:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:52,132 INFO L495 AbstractCegarLoop]: Abstraction has 19023 states and 24304 transitions. [2023-12-16 07:35:52,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:35:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 19023 states and 24304 transitions. [2023-12-16 07:35:52,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 07:35:52,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:52,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:52,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:35:52,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:52,344 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:52,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:52,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1325188821, now seen corresponding path program 1 times [2023-12-16 07:35:52,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:52,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984525948] [2023-12-16 07:35:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:52,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:52,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:52,346 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) [2023-12-16 07:35:52,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 07:35:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:52,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:52,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:35:52,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:52,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:52,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984525948] [2023-12-16 07:35:52,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984525948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:52,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:52,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:35:52,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821969515] [2023-12-16 07:35:52,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:52,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:52,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:52,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:52,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:52,470 INFO L87 Difference]: Start difference. First operand 19023 states and 24304 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 07:35:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:53,833 INFO L93 Difference]: Finished difference Result 49161 states and 60780 transitions. [2023-12-16 07:35:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:53,833 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 139 [2023-12-16 07:35:53,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:53,896 INFO L225 Difference]: With dead ends: 49161 [2023-12-16 07:35:53,896 INFO L226 Difference]: Without dead ends: 25723 [2023-12-16 07:35:53,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:53,921 INFO L413 NwaCegarLoop]: 4329 mSDtfsCounter, 176 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 8480 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:53,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 8480 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:35:53,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25723 states. [2023-12-16 07:35:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25723 to 25723. [2023-12-16 07:35:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25723 states, 22949 states have (on average 1.2649352912980958) internal successors, (29029), 23303 states have internal predecessors, (29029), 1236 states have call successors, (1236), 992 states have call predecessors, (1236), 1536 states have return successors, (2106), 1428 states have call predecessors, (2106), 1236 states have call successors, (2106) [2023-12-16 07:35:55,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25723 states to 25723 states and 32371 transitions. [2023-12-16 07:35:55,125 INFO L78 Accepts]: Start accepts. Automaton has 25723 states and 32371 transitions. Word has length 139 [2023-12-16 07:35:55,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:55,125 INFO L495 AbstractCegarLoop]: Abstraction has 25723 states and 32371 transitions. [2023-12-16 07:35:55,125 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 07:35:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 25723 states and 32371 transitions. [2023-12-16 07:35:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 07:35:55,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:55,139 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:55,144 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 [2023-12-16 07:35:55,343 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 [2023-12-16 07:35:55,343 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:55,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:55,344 INFO L85 PathProgramCache]: Analyzing trace with hash 952201055, now seen corresponding path program 1 times [2023-12-16 07:35:55,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:55,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562391764] [2023-12-16 07:35:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:55,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:55,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:55,346 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) [2023-12-16 07:35:55,354 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 [2023-12-16 07:35:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:55,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:35:55,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:35:55,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:55,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:55,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562391764] [2023-12-16 07:35:55,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562391764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:55,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:55,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:35:55,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354692228] [2023-12-16 07:35:55,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:55,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:35:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:35:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:35:55,553 INFO L87 Difference]: Start difference. First operand 25723 states and 32371 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:35:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:35:56,924 INFO L93 Difference]: Finished difference Result 55950 states and 68959 transitions. [2023-12-16 07:35:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:35:56,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 175 [2023-12-16 07:35:56,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:35:56,983 INFO L225 Difference]: With dead ends: 55950 [2023-12-16 07:35:56,984 INFO L226 Difference]: Without dead ends: 32359 [2023-12-16 07:35:57,013 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 [2023-12-16 07:35:57,014 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4059 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:35:57,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 4337 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:35:57,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32359 states. [2023-12-16 07:35:58,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32359 to 32311. [2023-12-16 07:35:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32311 states, 28817 states have (on average 1.2461047298469654) internal successors, (35909), 29211 states have internal predecessors, (35909), 1604 states have call successors, (1604), 1280 states have call predecessors, (1604), 1888 states have return successors, (2622), 1820 states have call predecessors, (2622), 1604 states have call successors, (2622) [2023-12-16 07:35:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32311 states to 32311 states and 40135 transitions. [2023-12-16 07:35:58,787 INFO L78 Accepts]: Start accepts. Automaton has 32311 states and 40135 transitions. Word has length 175 [2023-12-16 07:35:58,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:35:58,787 INFO L495 AbstractCegarLoop]: Abstraction has 32311 states and 40135 transitions. [2023-12-16 07:35:58,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:35:58,787 INFO L276 IsEmpty]: Start isEmpty. Operand 32311 states and 40135 transitions. [2023-12-16 07:35:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-16 07:35:58,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:35:58,807 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:35:58,812 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 [2023-12-16 07:35:59,011 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 [2023-12-16 07:35:59,011 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:35:59,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:35:59,012 INFO L85 PathProgramCache]: Analyzing trace with hash -983920095, now seen corresponding path program 1 times [2023-12-16 07:35:59,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:35:59,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421169166] [2023-12-16 07:35:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:35:59,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:35:59,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:35:59,013 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) [2023-12-16 07:35:59,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 07:35:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:35:59,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:35:59,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:35:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 07:35:59,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:35:59,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:35:59,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421169166] [2023-12-16 07:35:59,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421169166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:35:59,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:35:59,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:35:59,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391831755] [2023-12-16 07:35:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:35:59,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:35:59,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:35:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:35:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:35:59,194 INFO L87 Difference]: Start difference. First operand 32311 states and 40135 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 07:36:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:01,211 INFO L93 Difference]: Finished difference Result 62787 states and 76808 transitions. [2023-12-16 07:36:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:36:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 199 [2023-12-16 07:36:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:01,289 INFO L225 Difference]: With dead ends: 62787 [2023-12-16 07:36:01,289 INFO L226 Difference]: Without dead ends: 32609 [2023-12-16 07:36:01,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:36:01,319 INFO L413 NwaCegarLoop]: 4112 mSDtfsCounter, 4224 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 8307 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:01,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4230 Valid, 8307 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 07:36:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32609 states. [2023-12-16 07:36:02,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32609 to 32609. [2023-12-16 07:36:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32609 states, 29083 states have (on average 1.2385586081215831) internal successors, (36021), 29493 states have internal predecessors, (36021), 1604 states have call successors, (1604), 1280 states have call predecessors, (1604), 1920 states have return successors, (2400), 1836 states have call predecessors, (2400), 1604 states have call successors, (2400) [2023-12-16 07:36:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32609 states to 32609 states and 40025 transitions. [2023-12-16 07:36:03,037 INFO L78 Accepts]: Start accepts. Automaton has 32609 states and 40025 transitions. Word has length 199 [2023-12-16 07:36:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:03,037 INFO L495 AbstractCegarLoop]: Abstraction has 32609 states and 40025 transitions. [2023-12-16 07:36:03,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 07:36:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 32609 states and 40025 transitions. [2023-12-16 07:36:03,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-16 07:36:03,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:03,053 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:03,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:03,255 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 [2023-12-16 07:36:03,256 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:03,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:03,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1161888085, now seen corresponding path program 1 times [2023-12-16 07:36:03,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:03,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309069962] [2023-12-16 07:36:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:03,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:03,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:03,258 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) [2023-12-16 07:36:03,258 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 [2023-12-16 07:36:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:03,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:03,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 07:36:03,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:03,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309069962] [2023-12-16 07:36:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309069962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:03,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:03,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:36:03,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518016780] [2023-12-16 07:36:03,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:03,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:03,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:03,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:03,383 INFO L87 Difference]: Start difference. First operand 32609 states and 40025 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:36:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:04,758 INFO L93 Difference]: Finished difference Result 56529 states and 68431 transitions. [2023-12-16 07:36:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:04,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 200 [2023-12-16 07:36:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:04,810 INFO L225 Difference]: With dead ends: 56529 [2023-12-16 07:36:04,810 INFO L226 Difference]: Without dead ends: 32611 [2023-12-16 07:36:04,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:04,828 INFO L413 NwaCegarLoop]: 4318 mSDtfsCounter, 168 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 8475 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:04,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 8475 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:04,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32611 states. [2023-12-16 07:36:06,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32611 to 32609. [2023-12-16 07:36:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32609 states, 29083 states have (on average 1.2368393907093491) internal successors, (35971), 29493 states have internal predecessors, (35971), 1604 states have call successors, (1604), 1280 states have call predecessors, (1604), 1920 states have return successors, (2394), 1836 states have call predecessors, (2394), 1604 states have call successors, (2394) [2023-12-16 07:36:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32609 states to 32609 states and 39969 transitions. [2023-12-16 07:36:06,475 INFO L78 Accepts]: Start accepts. Automaton has 32609 states and 39969 transitions. Word has length 200 [2023-12-16 07:36:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:06,476 INFO L495 AbstractCegarLoop]: Abstraction has 32609 states and 39969 transitions. [2023-12-16 07:36:06,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 07:36:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 32609 states and 39969 transitions. [2023-12-16 07:36:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-16 07:36:06,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:06,492 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:06,498 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 [2023-12-16 07:36:06,696 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 [2023-12-16 07:36:06,697 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:06,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:06,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1035406802, now seen corresponding path program 1 times [2023-12-16 07:36:06,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:06,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256404725] [2023-12-16 07:36:06,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:06,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:06,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:06,698 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) [2023-12-16 07:36:06,699 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 [2023-12-16 07:36:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:06,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:06,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 07:36:06,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:06,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:06,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256404725] [2023-12-16 07:36:06,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256404725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:06,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:06,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:36:06,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590391312] [2023-12-16 07:36:06,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:06,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:06,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:06,832 INFO L87 Difference]: Start difference. First operand 32609 states and 39969 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:36:09,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:09,337 INFO L93 Difference]: Finished difference Result 78189 states and 96171 transitions. [2023-12-16 07:36:09,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:09,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 201 [2023-12-16 07:36:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:09,538 INFO L225 Difference]: With dead ends: 78189 [2023-12-16 07:36:09,538 INFO L226 Difference]: Without dead ends: 54271 [2023-12-16 07:36:09,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:09,565 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 4150 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 4343 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:09,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 4343 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:09,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54271 states. [2023-12-16 07:36:12,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54271 to 53725. [2023-12-16 07:36:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53725 states, 47623 states have (on average 1.2115784389895639) internal successors, (57699), 48385 states have internal predecessors, (57699), 2740 states have call successors, (2740), 2176 states have call predecessors, (2740), 3360 states have return successors, (5262), 3164 states have call predecessors, (5262), 2740 states have call successors, (5262) [2023-12-16 07:36:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53725 states to 53725 states and 65701 transitions. [2023-12-16 07:36:12,137 INFO L78 Accepts]: Start accepts. Automaton has 53725 states and 65701 transitions. Word has length 201 [2023-12-16 07:36:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:12,138 INFO L495 AbstractCegarLoop]: Abstraction has 53725 states and 65701 transitions. [2023-12-16 07:36:12,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:36:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 53725 states and 65701 transitions. [2023-12-16 07:36:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-16 07:36:12,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:12,166 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:12,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:36:12,370 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 [2023-12-16 07:36:12,370 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:12,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:12,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1533821993, now seen corresponding path program 1 times [2023-12-16 07:36:12,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:12,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425878682] [2023-12-16 07:36:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:12,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:12,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:12,372 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) [2023-12-16 07:36:12,372 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 [2023-12-16 07:36:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:12,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:36:12,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 07:36:12,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:12,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:12,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425878682] [2023-12-16 07:36:12,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425878682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:12,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:12,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:36:12,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190538066] [2023-12-16 07:36:12,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:12,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:36:12,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:12,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:36:12,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:12,491 INFO L87 Difference]: Start difference. First operand 53725 states and 65701 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:36:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:36:15,185 INFO L93 Difference]: Finished difference Result 104214 states and 128479 transitions. [2023-12-16 07:36:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:36:15,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 202 [2023-12-16 07:36:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:36:15,262 INFO L225 Difference]: With dead ends: 104214 [2023-12-16 07:36:15,262 INFO L226 Difference]: Without dead ends: 45383 [2023-12-16 07:36:15,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:36:15,309 INFO L413 NwaCegarLoop]: 4157 mSDtfsCounter, 2 mSDsluCounter, 8309 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12466 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:15,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12466 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45383 states. [2023-12-16 07:36:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45383 to 45290. [2023-12-16 07:36:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45290 states, 40612 states have (on average 1.198315768738304) internal successors, (48666), 40950 states have internal predecessors, (48666), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2336 states have return successors, (3436), 2484 states have call predecessors, (3436), 2340 states have call successors, (3436) [2023-12-16 07:36:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45290 states to 45290 states and 54442 transitions. [2023-12-16 07:36:17,582 INFO L78 Accepts]: Start accepts. Automaton has 45290 states and 54442 transitions. Word has length 202 [2023-12-16 07:36:17,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:36:17,583 INFO L495 AbstractCegarLoop]: Abstraction has 45290 states and 54442 transitions. [2023-12-16 07:36:17,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 07:36:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 45290 states and 54442 transitions. [2023-12-16 07:36:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-16 07:36:17,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:36:17,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:17,606 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 (30)] Ended with exit code 0 [2023-12-16 07:36:17,802 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 [2023-12-16 07:36:17,802 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:36:17,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:36:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash -742750507, now seen corresponding path program 1 times [2023-12-16 07:36:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:36:17,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7876320] [2023-12-16 07:36:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:36:17,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:36:17,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:36:17,804 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) [2023-12-16 07:36:17,805 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 [2023-12-16 07:36:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:36:17,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:36:17,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:36:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-16 07:36:18,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:36:18,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:36:18,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7876320] [2023-12-16 07:36:18,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7876320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:36:18,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:36:18,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:36:18,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041781972] [2023-12-16 07:36:18,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:36:18,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:36:18,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:36:18,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:36:18,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:18,054 INFO L87 Difference]: Start difference. First operand 45290 states and 54442 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Received shutdown request... [2023-12-16 07:36:20,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:36:20,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:36:20,259 INFO L413 NwaCegarLoop]: 4156 mSDtfsCounter, 4040 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4040 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:36:20,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4040 Valid, 4337 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:36:20,260 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:36:20,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-16 07:36:20,298 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 (31)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:36:20,298 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:36:20,461 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 [2023-12-16 07:36:20,462 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (45290states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (84597 states constructed, input type IntersectNwa). [2023-12-16 07:36:20,463 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:36:20,466 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:36:20,467 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:36:20,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:36:20 BoogieIcfgContainer [2023-12-16 07:36:20,469 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:36:20,469 INFO L158 Benchmark]: Toolchain (without parser) took 59286.71ms. Allocated memory was 194.0MB in the beginning and 6.0GB in the end (delta: 5.8GB). Free memory was 109.3MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2023-12-16 07:36:20,469 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 194.0MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:36:20,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2200.59ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 109.0MB in the beginning and 108.8MB in the end (delta: 135.4kB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2023-12-16 07:36:20,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 340.69ms. Allocated memory was 232.8MB in the beginning and 389.0MB in the end (delta: 156.2MB). Free memory was 108.8MB in the beginning and 238.8MB in the end (delta: -130.0MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. [2023-12-16 07:36:20,470 INFO L158 Benchmark]: Boogie Preprocessor took 466.82ms. Allocated memory is still 389.0MB. Free memory was 238.8MB in the beginning and 207.9MB in the end (delta: 30.9MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. [2023-12-16 07:36:20,470 INFO L158 Benchmark]: RCFGBuilder took 7676.23ms. Allocated memory was 389.0MB in the beginning and 1.2GB in the end (delta: 772.8MB). Free memory was 207.9MB in the beginning and 757.4MB in the end (delta: -549.5MB). Peak memory consumption was 476.1MB. Max. memory is 8.0GB. [2023-12-16 07:36:20,470 INFO L158 Benchmark]: TraceAbstraction took 48596.11ms. Allocated memory was 1.2GB in the beginning and 6.0GB in the end (delta: 4.8GB). Free memory was 756.3MB in the beginning and 5.0GB in the end (delta: -4.2GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 07:36:20,471 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 194.0MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2200.59ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 109.0MB in the beginning and 108.8MB in the end (delta: 135.4kB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 340.69ms. Allocated memory was 232.8MB in the beginning and 389.0MB in the end (delta: 156.2MB). Free memory was 108.8MB in the beginning and 238.8MB in the end (delta: -130.0MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 466.82ms. Allocated memory is still 389.0MB. Free memory was 238.8MB in the beginning and 207.9MB in the end (delta: 30.9MB). Peak memory consumption was 74.4MB. Max. memory is 8.0GB. * RCFGBuilder took 7676.23ms. Allocated memory was 389.0MB in the beginning and 1.2GB in the end (delta: 772.8MB). Free memory was 207.9MB in the beginning and 757.4MB in the end (delta: -549.5MB). Peak memory consumption was 476.1MB. Max. memory is 8.0GB. * TraceAbstraction took 48596.11ms. Allocated memory was 1.2GB in the beginning and 6.0GB in the end (delta: 4.8GB). Free memory was 756.3MB in the beginning and 5.0GB in the end (delta: -4.2GB). Peak memory consumption was 2.2GB. 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: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (45290states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (84597 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 10986]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10986). Cancelled while NwaCegarLoop was constructing difference of abstraction (45290states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (84597 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2287 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 48.5s, OverallIterations: 30, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81728 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81581 mSDsluCounter, 293657 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169084 mSDsCounter, 504 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4511 IncrementalHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 504 mSolverCounterUnsat, 124573 mSDtfsCounter, 4511 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3579 GetRequests, 3504 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53725occurred in iteration=28, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.6s AutomataMinimizationTime, 29 MinimizatonAttempts, 1040 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3589 NumberOfCodeBlocks, 3589 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3559 ConstructedInterpolants, 0 QuantifiedInterpolants, 6064 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8223 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 1116/1116 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