/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/eca-rers2012/Problem03_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:28:24,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:28:24,563 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 08:28:24,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:28:24,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:28:24,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:28:24,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:28:24,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:28:24,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:28:24,596 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:28:24,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:28:24,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:28:24,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:28:24,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:28:24,598 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:28:24,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:28:24,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:28:24,598 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:28:24,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:28:24,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:28:24,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:28:24,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:28:24,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:28:24,600 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:28:24,600 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:28:24,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:28:24,600 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:28:24,601 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:28:24,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:28:24,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:28:24,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:28:24,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:28:24,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:28:24,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:28:24,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:28:24,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:28:24,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:28:24,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:28:24,603 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:28:24,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:28:24,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:28:24,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:28:24,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:28:24,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:28:24,850 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:28:24,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label41.c [2023-12-16 08:28:25,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:28:26,190 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:28:26,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label41.c [2023-12-16 08:28:26,255 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f1f9e8d/3f337d12482848b4ab2b64d59ea090ce/FLAGe7ca0c18f [2023-12-16 08:28:26,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f1f9e8d/3f337d12482848b4ab2b64d59ea090ce [2023-12-16 08:28:26,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:28:26,268 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:28:26,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:28:26,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:28:26,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:28:26,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:28:26" (1/1) ... [2023-12-16 08:28:26,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63954888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:26, skipping insertion in model container [2023-12-16 08:28:26,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:28:26" (1/1) ... [2023-12-16 08:28:26,341 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:28:26,902 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label41.c[58800,58813] [2023-12-16 08:28:26,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:28:26,942 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:28:27,090 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label41.c[58800,58813] [2023-12-16 08:28:27,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:28:27,117 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:28:27,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27 WrapperNode [2023-12-16 08:28:27,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:28:27,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:28:27,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:28:27,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:28:27,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,229 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-16 08:28:27,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:28:27,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:28:27,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:28:27,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:28:27,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,248 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,286 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 08:28:27,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:28:27,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:28:27,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:28:27,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:28:27,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (1/1) ... [2023-12-16 08:28:27,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:28:27,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:28:27,405 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 08:28:27,424 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 08:28:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:28:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:28:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:28:27,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:28:27,506 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:28:27,508 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:28:29,093 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:28:29,146 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:28:29,147 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:28:29,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:28:29 BoogieIcfgContainer [2023-12-16 08:28:29,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:28:29,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:28:29,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:28:29,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:28:29,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:28:26" (1/3) ... [2023-12-16 08:28:29,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e856da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:28:29, skipping insertion in model container [2023-12-16 08:28:29,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:27" (2/3) ... [2023-12-16 08:28:29,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e856da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:28:29, skipping insertion in model container [2023-12-16 08:28:29,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:28:29" (3/3) ... [2023-12-16 08:28:29,153 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label41.c [2023-12-16 08:28:29,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:28:29,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:28:29,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:28:29,224 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;@791f6856, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:28:29,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:28:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 08:28:29,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:29,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:29,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:29,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:29,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1731392771, now seen corresponding path program 1 times [2023-12-16 08:28:29,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:29,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252318040] [2023-12-16 08:28:29,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:29,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:29,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:29,262 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 08:28:29,279 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 08:28:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:29,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:28:29,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:29,426 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 08:28:29,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:29,427 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:29,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252318040] [2023-12-16 08:28:29,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252318040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:29,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:29,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:28:29,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292938984] [2023-12-16 08:28:29,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:29,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:28:29,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:29,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:28:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:28:29,453 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:29,488 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-16 08:28:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:28:29,490 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2023-12-16 08:28:29,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:29,497 INFO L225 Difference]: With dead ends: 479 [2023-12-16 08:28:29,497 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 08:28:29,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:28:29,502 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:29,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:28:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 08:28:29,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 08:28:29,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:29,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-16 08:28:29,532 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 181 [2023-12-16 08:28:29,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:29,533 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-16 08:28:29,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-16 08:28:29,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 08:28:29,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:29,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:29,540 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 08:28:29,738 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 08:28:29,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:29,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:29,739 INFO L85 PathProgramCache]: Analyzing trace with hash -577107304, now seen corresponding path program 1 times [2023-12-16 08:28:29,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:29,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184796374] [2023-12-16 08:28:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:29,741 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 08:28:29,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:29,742 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 08:28:29,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:28:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:29,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 08:28:29,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:42,894 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 08:28:42,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:42,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184796374] [2023-12-16 08:28:42,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184796374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:42,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:42,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:28:42,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256025432] [2023-12-16 08:28:42,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:42,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:28:42,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:42,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:28:42,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:28:42,897 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:46,113 INFO L93 Difference]: Finished difference Result 588 states and 1007 transitions. [2023-12-16 08:28:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:28:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2023-12-16 08:28:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:46,118 INFO L225 Difference]: With dead ends: 588 [2023-12-16 08:28:46,118 INFO L226 Difference]: Without dead ends: 351 [2023-12-16 08:28:46,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-16 08:28:46,120 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 418 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:46,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 372 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 08:28:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-16 08:28:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-16 08:28:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.46) internal successors, (511), 350 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 511 transitions. [2023-12-16 08:28:46,133 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 511 transitions. Word has length 181 [2023-12-16 08:28:46,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:46,134 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 511 transitions. [2023-12-16 08:28:46,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 511 transitions. [2023-12-16 08:28:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 08:28:46,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:46,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:46,155 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 08:28:46,338 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 08:28:46,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:46,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash -614504441, now seen corresponding path program 1 times [2023-12-16 08:28:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:46,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925084151] [2023-12-16 08:28:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:46,341 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 08:28:46,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:46,344 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 08:28:46,346 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 08:28:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:46,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:28:46,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:00,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:00,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:00,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:00,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925084151] [2023-12-16 08:29:00,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925084151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:00,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:00,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:29:00,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877120051] [2023-12-16 08:29:00,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:00,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:29:00,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:00,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:29:00,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:29:00,817 INFO L87 Difference]: Start difference. First operand 351 states and 511 transitions. Second operand has 10 states, 10 states have (on average 18.8) internal successors, (188), 9 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:03,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:03,597 INFO L93 Difference]: Finished difference Result 729 states and 1181 transitions. [2023-12-16 08:29:03,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:29:03,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 9 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2023-12-16 08:29:03,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:03,604 INFO L225 Difference]: With dead ends: 729 [2023-12-16 08:29:03,604 INFO L226 Difference]: Without dead ends: 492 [2023-12-16 08:29:03,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-16 08:29:03,610 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 231 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:03,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 347 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 08:29:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-16 08:29:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2023-12-16 08:29:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.340122199592668) internal successors, (658), 491 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:03,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 658 transitions. [2023-12-16 08:29:03,639 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 658 transitions. Word has length 188 [2023-12-16 08:29:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:03,640 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 658 transitions. [2023-12-16 08:29:03,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 9 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:03,640 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 658 transitions. [2023-12-16 08:29:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-12-16 08:29:03,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:03,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:03,647 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 08:29:03,868 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 08:29:03,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:03,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:03,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2057769830, now seen corresponding path program 1 times [2023-12-16 08:29:03,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:03,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890471441] [2023-12-16 08:29:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:03,871 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 08:29:03,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:03,872 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 08:29:03,876 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 08:29:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:03,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:29:03,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:29:06,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:06,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:06,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890471441] [2023-12-16 08:29:06,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890471441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:06,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393436641] [2023-12-16 08:29:06,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:29:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:29:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:06,730 INFO L87 Difference]: Start difference. First operand 492 states and 658 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:07,867 INFO L93 Difference]: Finished difference Result 887 states and 1337 transitions. [2023-12-16 08:29:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:29:07,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2023-12-16 08:29:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:07,869 INFO L225 Difference]: With dead ends: 887 [2023-12-16 08:29:07,869 INFO L226 Difference]: Without dead ends: 464 [2023-12-16 08:29:07,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:07,871 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 332 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:07,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 44 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:29:07,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-16 08:29:07,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2023-12-16 08:29:07,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.2267818574514038) internal successors, (568), 463 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 568 transitions. [2023-12-16 08:29:07,879 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 568 transitions. Word has length 196 [2023-12-16 08:29:07,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:07,879 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 568 transitions. [2023-12-16 08:29:07,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:07,879 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 568 transitions. [2023-12-16 08:29:07,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 08:29:07,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:07,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:07,923 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 08:29:08,104 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 08:29:08,105 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:08,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:08,106 INFO L85 PathProgramCache]: Analyzing trace with hash 831970430, now seen corresponding path program 1 times [2023-12-16 08:29:08,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:08,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268635761] [2023-12-16 08:29:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:08,107 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 08:29:08,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:08,125 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 08:29:08,155 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 08:29:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:08,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:29:08,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:08,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:08,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:08,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268635761] [2023-12-16 08:29:08,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268635761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:08,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:08,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:29:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965124860] [2023-12-16 08:29:08,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:08,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:08,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:08,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:08,445 INFO L87 Difference]: Start difference. First operand 464 states and 568 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:09,318 INFO L93 Difference]: Finished difference Result 898 states and 1197 transitions. [2023-12-16 08:29:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2023-12-16 08:29:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:09,320 INFO L225 Difference]: With dead ends: 898 [2023-12-16 08:29:09,320 INFO L226 Difference]: Without dead ends: 677 [2023-12-16 08:29:09,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 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 08:29:09,321 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 214 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:09,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 206 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:29:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-12-16 08:29:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2023-12-16 08:29:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 1.2588757396449703) internal successors, (851), 676 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:09,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 851 transitions. [2023-12-16 08:29:09,332 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 851 transitions. Word has length 209 [2023-12-16 08:29:09,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:09,333 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 851 transitions. [2023-12-16 08:29:09,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 851 transitions. [2023-12-16 08:29:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 08:29:09,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:09,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:09,339 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 (6)] Ended with exit code 0 [2023-12-16 08:29:09,548 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 08:29:09,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:09,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:09,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2077705429, now seen corresponding path program 1 times [2023-12-16 08:29:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:09,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891244093] [2023-12-16 08:29:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:09,551 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 08:29:09,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:09,552 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 08:29:09,588 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 08:29:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:09,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:29:09,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:12,226 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:12,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:12,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891244093] [2023-12-16 08:29:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891244093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:12,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:12,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:29:12,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120105934] [2023-12-16 08:29:12,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:12,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:29:12,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:12,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:29:12,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:29:12,238 INFO L87 Difference]: Start difference. First operand 677 states and 851 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:14,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:14,040 INFO L93 Difference]: Finished difference Result 2727 states and 3750 transitions. [2023-12-16 08:29:14,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:29:14,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2023-12-16 08:29:14,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:14,053 INFO L225 Difference]: With dead ends: 2727 [2023-12-16 08:29:14,053 INFO L226 Difference]: Without dead ends: 2197 [2023-12-16 08:29:14,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:29:14,055 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 814 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:14,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 134 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 08:29:14,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2023-12-16 08:29:14,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2051. [2023-12-16 08:29:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 2050 states have (on average 1.2775609756097561) internal successors, (2619), 2050 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 2619 transitions. [2023-12-16 08:29:14,080 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 2619 transitions. Word has length 212 [2023-12-16 08:29:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:14,080 INFO L495 AbstractCegarLoop]: Abstraction has 2051 states and 2619 transitions. [2023-12-16 08:29:14,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 2619 transitions. [2023-12-16 08:29:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-16 08:29:14,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:14,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:14,101 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 08:29:14,286 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 08:29:14,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:14,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1447326117, now seen corresponding path program 1 times [2023-12-16 08:29:14,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:14,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261409987] [2023-12-16 08:29:14,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:14,289 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 08:29:14,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:14,290 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 08:29:14,305 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 08:29:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:14,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:29:14,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 08:29:14,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:14,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:14,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261409987] [2023-12-16 08:29:14,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261409987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:14,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:14,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:14,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742217553] [2023-12-16 08:29:14,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:14,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:29:14,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:14,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:29:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:14,597 INFO L87 Difference]: Start difference. First operand 2051 states and 2619 transitions. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:16,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:16,012 INFO L93 Difference]: Finished difference Result 5232 states and 6871 transitions. [2023-12-16 08:29:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:29:16,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2023-12-16 08:29:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:16,029 INFO L225 Difference]: With dead ends: 5232 [2023-12-16 08:29:16,030 INFO L226 Difference]: Without dead ends: 3290 [2023-12-16 08:29:16,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:16,032 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 399 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:16,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 140 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 08:29:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2023-12-16 08:29:16,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3270. [2023-12-16 08:29:16,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3269 states have (on average 1.2707249923524013) internal successors, (4154), 3269 states have internal predecessors, (4154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 4154 transitions. [2023-12-16 08:29:16,092 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 4154 transitions. Word has length 271 [2023-12-16 08:29:16,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:16,092 INFO L495 AbstractCegarLoop]: Abstraction has 3270 states and 4154 transitions. [2023-12-16 08:29:16,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 4154 transitions. [2023-12-16 08:29:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-16 08:29:16,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:16,096 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:16,101 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 08:29:16,299 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 08:29:16,300 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:16,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1909254071, now seen corresponding path program 1 times [2023-12-16 08:29:16,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:16,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493060667] [2023-12-16 08:29:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:16,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:16,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:16,311 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 08:29:16,356 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 08:29:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:16,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:16,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 08:29:16,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:16,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493060667] [2023-12-16 08:29:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493060667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:16,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:29:16,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785298514] [2023-12-16 08:29:16,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:16,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:16,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:16,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:16,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:16,725 INFO L87 Difference]: Start difference. First operand 3270 states and 4154 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:17,017 INFO L93 Difference]: Finished difference Result 7738 states and 9990 transitions. [2023-12-16 08:29:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:17,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2023-12-16 08:29:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:17,048 INFO L225 Difference]: With dead ends: 7738 [2023-12-16 08:29:17,048 INFO L226 Difference]: Without dead ends: 4711 [2023-12-16 08:29:17,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:17,059 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 207 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:17,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 454 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:29:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2023-12-16 08:29:17,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 4709. [2023-12-16 08:29:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4709 states, 4708 states have (on average 1.2878079864061172) internal successors, (6063), 4708 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:17,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4709 states to 4709 states and 6063 transitions. [2023-12-16 08:29:17,124 INFO L78 Accepts]: Start accepts. Automaton has 4709 states and 6063 transitions. Word has length 282 [2023-12-16 08:29:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:17,125 INFO L495 AbstractCegarLoop]: Abstraction has 4709 states and 6063 transitions. [2023-12-16 08:29:17,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4709 states and 6063 transitions. [2023-12-16 08:29:17,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-12-16 08:29:17,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:17,130 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:17,133 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 08:29:17,336 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 08:29:17,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:17,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash -978651062, now seen corresponding path program 1 times [2023-12-16 08:29:17,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:17,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142476924] [2023-12-16 08:29:17,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:17,339 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 08:29:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:17,340 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 08:29:17,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 08:29:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:17,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:17,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:17,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:17,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:17,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142476924] [2023-12-16 08:29:17,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142476924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:17,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:17,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904244618] [2023-12-16 08:29:17,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:17,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:17,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:17,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:17,565 INFO L87 Difference]: Start difference. First operand 4709 states and 6063 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:18,483 INFO L93 Difference]: Finished difference Result 13245 states and 17205 transitions. [2023-12-16 08:29:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2023-12-16 08:29:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:18,511 INFO L225 Difference]: With dead ends: 13245 [2023-12-16 08:29:18,511 INFO L226 Difference]: Without dead ends: 8779 [2023-12-16 08:29:18,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 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 08:29:18,532 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 214 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:18,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 251 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:29:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8779 states. [2023-12-16 08:29:19,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8779 to 8769. [2023-12-16 08:29:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8769 states, 8768 states have (on average 1.2408759124087592) internal successors, (10880), 8768 states have internal predecessors, (10880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8769 states to 8769 states and 10880 transitions. [2023-12-16 08:29:19,072 INFO L78 Accepts]: Start accepts. Automaton has 8769 states and 10880 transitions. Word has length 300 [2023-12-16 08:29:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:19,072 INFO L495 AbstractCegarLoop]: Abstraction has 8769 states and 10880 transitions. [2023-12-16 08:29:19,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:19,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8769 states and 10880 transitions. [2023-12-16 08:29:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-16 08:29:19,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:19,082 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:19,103 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 08:29:19,298 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 08:29:19,299 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:19,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:19,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1920405795, now seen corresponding path program 1 times [2023-12-16 08:29:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:19,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82247236] [2023-12-16 08:29:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:19,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:19,330 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 08:29:19,372 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 (11)] Waiting until timeout for monitored process [2023-12-16 08:29:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:19,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:19,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 08:29:19,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:19,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:19,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82247236] [2023-12-16 08:29:19,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82247236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:19,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:19,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263014598] [2023-12-16 08:29:19,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:19,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:19,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:19,554 INFO L87 Difference]: Start difference. First operand 8769 states and 10880 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:20,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:20,597 INFO L93 Difference]: Finished difference Result 22173 states and 27670 transitions. [2023-12-16 08:29:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:20,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2023-12-16 08:29:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:20,634 INFO L225 Difference]: With dead ends: 22173 [2023-12-16 08:29:20,635 INFO L226 Difference]: Without dead ends: 13647 [2023-12-16 08:29:20,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 309 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 08:29:20,644 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 228 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:20,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 250 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:29:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13647 states. [2023-12-16 08:29:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13647 to 13439. [2023-12-16 08:29:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 1.199508855484447) internal successors, (16119), 13438 states have internal predecessors, (16119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 16119 transitions. [2023-12-16 08:29:20,790 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 16119 transitions. Word has length 311 [2023-12-16 08:29:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:20,791 INFO L495 AbstractCegarLoop]: Abstraction has 13439 states and 16119 transitions. [2023-12-16 08:29:20,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 16119 transitions. [2023-12-16 08:29:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-12-16 08:29:20,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:20,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:20,822 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 08:29:21,006 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 08:29:21,007 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:21,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash -324714880, now seen corresponding path program 1 times [2023-12-16 08:29:21,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:21,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713118028] [2023-12-16 08:29:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:21,009 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 08:29:21,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:21,010 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 08:29:21,012 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 08:29:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:21,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:21,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:21,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:21,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:21,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713118028] [2023-12-16 08:29:21,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713118028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:21,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:21,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:21,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222463753] [2023-12-16 08:29:21,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:21,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:21,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:21,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:21,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:21,213 INFO L87 Difference]: Start difference. First operand 13439 states and 16119 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:22,206 INFO L93 Difference]: Finished difference Result 26853 states and 32246 transitions. [2023-12-16 08:29:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:22,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2023-12-16 08:29:22,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:22,225 INFO L225 Difference]: With dead ends: 26853 [2023-12-16 08:29:22,225 INFO L226 Difference]: Without dead ends: 13657 [2023-12-16 08:29:22,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 324 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 08:29:22,232 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 187 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:22,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 305 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:29:22,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13657 states. [2023-12-16 08:29:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13657 to 13439. [2023-12-16 08:29:22,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 1.1923649352582228) internal successors, (16023), 13438 states have internal predecessors, (16023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:22,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 16023 transitions. [2023-12-16 08:29:22,362 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 16023 transitions. Word has length 326 [2023-12-16 08:29:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:22,362 INFO L495 AbstractCegarLoop]: Abstraction has 13439 states and 16023 transitions. [2023-12-16 08:29:22,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 16023 transitions. [2023-12-16 08:29:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-16 08:29:22,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:22,374 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:22,391 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 08:29:22,577 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 08:29:22,577 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:22,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2041064198, now seen corresponding path program 1 times [2023-12-16 08:29:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:22,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230219899] [2023-12-16 08:29:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:22,580 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 08:29:22,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:22,581 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 08:29:22,582 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 08:29:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:22,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:22,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-16 08:29:22,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:22,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:22,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230219899] [2023-12-16 08:29:22,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230219899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:22,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:22,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:29:22,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503119313] [2023-12-16 08:29:22,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:22,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:22,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:22,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:22,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:22,855 INFO L87 Difference]: Start difference. First operand 13439 states and 16023 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:23,587 INFO L93 Difference]: Finished difference Result 26646 states and 31819 transitions. [2023-12-16 08:29:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:23,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2023-12-16 08:29:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:23,606 INFO L225 Difference]: With dead ends: 26646 [2023-12-16 08:29:23,606 INFO L226 Difference]: Without dead ends: 13450 [2023-12-16 08:29:23,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 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 08:29:23,618 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 138 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:23,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 148 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:29:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13450 states. [2023-12-16 08:29:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13450 to 13439. [2023-12-16 08:29:23,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 1.1643101652031553) internal successors, (15646), 13438 states have internal predecessors, (15646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 15646 transitions. [2023-12-16 08:29:23,755 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 15646 transitions. Word has length 327 [2023-12-16 08:29:23,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:23,755 INFO L495 AbstractCegarLoop]: Abstraction has 13439 states and 15646 transitions. [2023-12-16 08:29:23,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 15646 transitions. [2023-12-16 08:29:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-12-16 08:29:23,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:23,766 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:23,774 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 08:29:23,973 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 08:29:23,974 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:23,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:23,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1528256074, now seen corresponding path program 1 times [2023-12-16 08:29:23,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:23,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652114098] [2023-12-16 08:29:23,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:23,976 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 08:29:23,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:23,977 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 08:29:23,983 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 08:29:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:24,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:29:24,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-16 08:29:24,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:24,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:24,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652114098] [2023-12-16 08:29:24,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652114098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:24,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:24,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:24,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081917031] [2023-12-16 08:29:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:24,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:29:24,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:24,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:29:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:24,445 INFO L87 Difference]: Start difference. First operand 13439 states and 15646 transitions. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:25,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:25,622 INFO L93 Difference]: Finished difference Result 36803 states and 42962 transitions. [2023-12-16 08:29:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:29:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2023-12-16 08:29:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:25,683 INFO L225 Difference]: With dead ends: 36803 [2023-12-16 08:29:25,683 INFO L226 Difference]: Without dead ends: 23607 [2023-12-16 08:29:25,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:25,697 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 389 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:25,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 55 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:29:25,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23607 states. [2023-12-16 08:29:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23607 to 23199. [2023-12-16 08:29:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23199 states, 23198 states have (on average 1.1419949995689282) internal successors, (26492), 23198 states have internal predecessors, (26492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:25,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23199 states to 23199 states and 26492 transitions. [2023-12-16 08:29:25,918 INFO L78 Accepts]: Start accepts. Automaton has 23199 states and 26492 transitions. Word has length 330 [2023-12-16 08:29:25,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:25,918 INFO L495 AbstractCegarLoop]: Abstraction has 23199 states and 26492 transitions. [2023-12-16 08:29:25,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 23199 states and 26492 transitions. [2023-12-16 08:29:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-16 08:29:25,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:25,936 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:25,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 08:29:26,140 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 08:29:26,141 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:26,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash 299366703, now seen corresponding path program 1 times [2023-12-16 08:29:26,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064905397] [2023-12-16 08:29:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:26,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:26,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:26,148 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 08:29:26,207 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 08:29:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:26,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:29:26,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 08:29:26,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:26,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064905397] [2023-12-16 08:29:26,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064905397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:26,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:26,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:26,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644271177] [2023-12-16 08:29:26,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:26,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:29:26,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:26,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:29:26,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:26,662 INFO L87 Difference]: Start difference. First operand 23199 states and 26492 transitions. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:27,673 INFO L93 Difference]: Finished difference Result 68497 states and 78311 transitions. [2023-12-16 08:29:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:29:27,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2023-12-16 08:29:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:27,744 INFO L225 Difference]: With dead ends: 68497 [2023-12-16 08:29:27,745 INFO L226 Difference]: Without dead ends: 45541 [2023-12-16 08:29:27,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:27,767 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 673 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:27,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 43 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:29:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45541 states. [2023-12-16 08:29:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45541 to 45537. [2023-12-16 08:29:28,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45537 states, 45536 states have (on average 1.1407897048489108) internal successors, (51947), 45536 states have internal predecessors, (51947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45537 states to 45537 states and 51947 transitions. [2023-12-16 08:29:28,387 INFO L78 Accepts]: Start accepts. Automaton has 45537 states and 51947 transitions. Word has length 332 [2023-12-16 08:29:28,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:28,388 INFO L495 AbstractCegarLoop]: Abstraction has 45537 states and 51947 transitions. [2023-12-16 08:29:28,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 45537 states and 51947 transitions. [2023-12-16 08:29:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 08:29:28,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:28,411 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:29:28,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 08:29:28,614 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 08:29:28,615 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:28,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:28,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1761724546, now seen corresponding path program 1 times [2023-12-16 08:29:28,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:28,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242781299] [2023-12-16 08:29:28,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:28,618 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 08:29:28,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:28,619 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 08:29:28,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 08:29:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:28,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:28,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-16 08:29:28,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:28,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:28,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242781299] [2023-12-16 08:29:28,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242781299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:28,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:28,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171285818] [2023-12-16 08:29:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:28,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:28,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:28,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:28,878 INFO L87 Difference]: Start difference. First operand 45537 states and 51947 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:30,429 INFO L93 Difference]: Finished difference Result 115823 states and 132140 transitions. [2023-12-16 08:29:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:30,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 336 [2023-12-16 08:29:30,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:30,567 INFO L225 Difference]: With dead ends: 115823 [2023-12-16 08:29:30,567 INFO L226 Difference]: Without dead ends: 70528 [2023-12-16 08:29:30,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 334 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 08:29:30,603 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 212 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:30,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 345 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:29:30,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70528 states. [2023-12-16 08:29:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70528 to 68070. [2023-12-16 08:29:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68070 states, 68069 states have (on average 1.1021904244222773) internal successors, (75025), 68069 states have internal predecessors, (75025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68070 states to 68070 states and 75025 transitions. [2023-12-16 08:29:31,492 INFO L78 Accepts]: Start accepts. Automaton has 68070 states and 75025 transitions. Word has length 336 [2023-12-16 08:29:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:31,493 INFO L495 AbstractCegarLoop]: Abstraction has 68070 states and 75025 transitions. [2023-12-16 08:29:31,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:31,493 INFO L276 IsEmpty]: Start isEmpty. Operand 68070 states and 75025 transitions. [2023-12-16 08:29:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-16 08:29:31,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:31,529 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:31,584 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 08:29:31,733 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 08:29:31,733 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:31,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash -574888459, now seen corresponding path program 1 times [2023-12-16 08:29:31,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:31,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805572213] [2023-12-16 08:29:31,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:31,736 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 08:29:31,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:31,737 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 08:29:31,748 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 08:29:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:32,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:29:32,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 08:29:32,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:32,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:32,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805572213] [2023-12-16 08:29:32,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805572213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:32,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:32,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:32,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894498110] [2023-12-16 08:29:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:32,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:32,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:32,203 INFO L87 Difference]: Start difference. First operand 68070 states and 75025 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:33,758 INFO L93 Difference]: Finished difference Result 155386 states and 172315 transitions. [2023-12-16 08:29:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 373 [2023-12-16 08:29:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:33,860 INFO L225 Difference]: With dead ends: 155386 [2023-12-16 08:29:33,861 INFO L226 Difference]: Without dead ends: 87558 [2023-12-16 08:29:33,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 371 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 08:29:33,918 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 139 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:33,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 190 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:29:33,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87558 states. [2023-12-16 08:29:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87558 to 79032. [2023-12-16 08:29:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79032 states, 79031 states have (on average 1.0811833331224456) internal successors, (85447), 79031 states have internal predecessors, (85447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:35,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79032 states to 79032 states and 85447 transitions. [2023-12-16 08:29:35,206 INFO L78 Accepts]: Start accepts. Automaton has 79032 states and 85447 transitions. Word has length 373 [2023-12-16 08:29:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:35,206 INFO L495 AbstractCegarLoop]: Abstraction has 79032 states and 85447 transitions. [2023-12-16 08:29:35,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 79032 states and 85447 transitions. [2023-12-16 08:29:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2023-12-16 08:29:35,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:35,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 08:29:35,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 08:29:35,429 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 08:29:35,430 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:35,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1308893436, now seen corresponding path program 1 times [2023-12-16 08:29:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529707016] [2023-12-16 08:29:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:35,432 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 08:29:35,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:35,433 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 08:29:35,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 08:29:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:35,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:29:35,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 08:29:43,502 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 (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:29:43,502 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 08:29:43,509 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:29:43,517 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 08:29:43,713 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 08:29:43,713 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 409 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-22-1 context. [2023-12-16 08:29:43,716 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:43,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:29:43,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:29:43 BoogieIcfgContainer [2023-12-16 08:29:43,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:29:43,726 INFO L158 Benchmark]: Toolchain (without parser) took 77457.86ms. Allocated memory was 180.4MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 133.0MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 850.4MB. Max. memory is 8.0GB. [2023-12-16 08:29:43,726 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 180.4MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:29:43,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.00ms. Allocated memory was 180.4MB in the beginning and 264.2MB in the end (delta: 83.9MB). Free memory was 133.0MB in the beginning and 220.5MB in the end (delta: -87.5MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2023-12-16 08:29:43,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.33ms. Allocated memory is still 264.2MB. Free memory was 220.5MB in the beginning and 205.3MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 08:29:43,727 INFO L158 Benchmark]: Boogie Preprocessor took 142.25ms. Allocated memory is still 264.2MB. Free memory was 205.3MB in the beginning and 192.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 08:29:43,727 INFO L158 Benchmark]: RCFGBuilder took 1774.79ms. Allocated memory is still 264.2MB. Free memory was 192.6MB in the beginning and 95.7MB in the end (delta: 96.9MB). Peak memory consumption was 106.4MB. Max. memory is 8.0GB. [2023-12-16 08:29:43,728 INFO L158 Benchmark]: TraceAbstraction took 74576.33ms. Allocated memory was 264.2MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 95.2MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 727.2MB. Max. memory is 8.0GB. [2023-12-16 08:29:43,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 180.4MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 849.00ms. Allocated memory was 180.4MB in the beginning and 264.2MB in the end (delta: 83.9MB). Free memory was 133.0MB in the beginning and 220.5MB in the end (delta: -87.5MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 110.33ms. Allocated memory is still 264.2MB. Free memory was 220.5MB in the beginning and 205.3MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 142.25ms. Allocated memory is still 264.2MB. Free memory was 205.3MB in the beginning and 192.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1774.79ms. Allocated memory is still 264.2MB. Free memory was 192.6MB in the beginning and 95.7MB in the end (delta: 96.9MB). Peak memory consumption was 106.4MB. Max. memory is 8.0GB. * TraceAbstraction took 74576.33ms. Allocated memory was 264.2MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 95.2MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 727.2MB. 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: 1591]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1591). Cancelled while NwaCegarLoop was analyzing trace of length 409 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-22-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.5s, OverallIterations: 17, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 21.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4795 SdHoareTripleChecker+Valid, 17.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4795 mSDsluCounter, 3676 SdHoareTripleChecker+Invalid, 14.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 654 mSDsCounter, 1665 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13184 IncrementalHoareTripleChecker+Invalid, 14849 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1665 mSolverCounterUnsat, 3022 mSDtfsCounter, 13184 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4349 GetRequests, 4305 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79032occurred in iteration=16, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 12011 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 34.3s InterpolantComputationTime, 4355 NumberOfCodeBlocks, 4355 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4339 ConstructedInterpolants, 0 QuantifiedInterpolants, 32669 SizeOfPredicates, 28 NumberOfNonLiveVariables, 6093 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 2069/2069 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