/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/Problem18_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 16:56:53,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 16:56:53,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 16:56:53,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 16:56:53,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 16:56:53,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 16:56:53,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 16:56:53,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 16:56:53,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 16:56:53,938 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 16:56:53,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 16:56:53,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 16:56:53,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 16:56:53,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 16:56:53,940 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 16:56:53,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 16:56:53,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 16:56:53,940 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 16:56:53,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 16:56:53,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 16:56:53,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 16:56:53,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 16:56:53,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 16:56:53,942 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 16:56:53,942 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 16:56:53,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 16:56:53,942 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 16:56:53,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 16:56:53,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 16:56:53,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 16:56:53,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 16:56:53,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 16:56:53,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 16:56:53,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 16:56:53,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 16:56:53,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 16:56:53,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 16:56:53,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 16:56:53,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 16:56:53,946 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 16:56:53,946 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 16:56:54,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 16:56:54,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 16:56:54,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 16:56:54,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 16:56:54,147 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 16:56:54,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label56.c [2023-12-22 16:56:55,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 16:56:55,554 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 16:56:55,555 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label56.c [2023-12-22 16:56:55,575 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cd6a8e9/a30d686abaa749e49c5f3d668e913ec7/FLAG9585d4293 [2023-12-22 16:56:55,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cd6a8e9/a30d686abaa749e49c5f3d668e913ec7 [2023-12-22 16:56:55,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 16:56:55,590 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 16:56:55,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 16:56:55,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 16:56:55,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 16:56:55,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:56:55" (1/1) ... [2023-12-22 16:56:55,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad7bb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:55, skipping insertion in model container [2023-12-22 16:56:55,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:56:55" (1/1) ... [2023-12-22 16:56:55,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 16:56:55,892 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/Problem18_label56.c[5125,5138] [2023-12-22 16:56:56,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 16:56:56,441 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 16:56:56,459 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/Problem18_label56.c[5125,5138] [2023-12-22 16:56:56,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 16:56:56,702 INFO L206 MainTranslator]: Completed translation [2023-12-22 16:56:56,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56 WrapperNode [2023-12-22 16:56:56,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 16:56:56,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 16:56:56,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 16:56:56,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 16:56:56,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,863 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4131 [2023-12-22 16:56:56,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 16:56:56,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 16:56:56,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 16:56:56,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 16:56:56,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,936 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 16:56:56,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:56,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:57,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:57,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:57,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 16:56:57,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 16:56:57,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 16:56:57,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 16:56:57,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (1/1) ... [2023-12-22 16:56:57,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 16:56:57,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 16:56:57,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 16:56:57,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 16:56:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 16:56:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 16:56:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 16:56:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 16:56:57,154 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 16:56:57,156 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 16:57:10,155 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 16:57:10,194 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 16:57:10,194 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 16:57:10,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:57:10 BoogieIcfgContainer [2023-12-22 16:57:10,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 16:57:10,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 16:57:10,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 16:57:10,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 16:57:10,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:56:55" (1/3) ... [2023-12-22 16:57:10,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85fd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:57:10, skipping insertion in model container [2023-12-22 16:57:10,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:56:56" (2/3) ... [2023-12-22 16:57:10,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85fd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:57:10, skipping insertion in model container [2023-12-22 16:57:10,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:57:10" (3/3) ... [2023-12-22 16:57:10,199 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label56.c [2023-12-22 16:57:10,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 16:57:10,219 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 16:57:10,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 16:57:10,281 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;@1128f402, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 16:57:10,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 16:57:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-22 16:57:10,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:57:10,295 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] [2023-12-22 16:57:10,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:57:10,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:57:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1992594909, now seen corresponding path program 1 times [2023-12-22 16:57:10,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:57:10,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370830471] [2023-12-22 16:57:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:57:10,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:10,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:57:10,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:57:10,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 16:57:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:57:10,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 16:57:10,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:57:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:57:10,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:57:10,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:57:10,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370830471] [2023-12-22 16:57:10,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370830471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:57:10,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:57:10,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:57:10,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813990884] [2023-12-22 16:57:10,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:57:10,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 16:57:10,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:57:10,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 16:57:10,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 16:57:10,441 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:10,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:57:10,509 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2023-12-22 16:57:10,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 16:57:10,511 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-22 16:57:10,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:57:10,522 INFO L225 Difference]: With dead ends: 1389 [2023-12-22 16:57:10,522 INFO L226 Difference]: Without dead ends: 693 [2023-12-22 16:57:10,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 16:57:10,527 INFO L413 NwaCegarLoop]: 1317 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, 1317 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 [2023-12-22 16:57:10,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 16:57:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-22 16:57:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2023-12-22 16:57:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2023-12-22 16:57:10,620 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 47 [2023-12-22 16:57:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:57:10,620 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2023-12-22 16:57:10,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2023-12-22 16:57:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-22 16:57:10,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:57:10,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:57:10,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 16:57:10,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:10,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:57:10,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:57:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash 135294765, now seen corresponding path program 1 times [2023-12-22 16:57:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:57:10,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44849456] [2023-12-22 16:57:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:57:10,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:10,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:57:10,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:57:10,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 16:57:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:57:10,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:57:10,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:57:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:57:11,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:57:11,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:57:11,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44849456] [2023-12-22 16:57:11,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44849456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:57:11,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:57:11,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:57:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149464906] [2023-12-22 16:57:11,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:57:11,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:57:11,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:57:11,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:57:11,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:57:11,035 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:27,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:57:27,630 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2023-12-22 16:57:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:57:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-22 16:57:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:57:27,635 INFO L225 Difference]: With dead ends: 2075 [2023-12-22 16:57:27,635 INFO L226 Difference]: Without dead ends: 1383 [2023-12-22 16:57:27,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:57:27,637 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 728 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-22 16:57:27,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 435 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2023-12-22 16:57:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2023-12-22 16:57:27,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2023-12-22 16:57:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5998552821997105) internal successors, (2211), 1382 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2211 transitions. [2023-12-22 16:57:27,663 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2211 transitions. Word has length 47 [2023-12-22 16:57:27,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:57:27,663 INFO L495 AbstractCegarLoop]: Abstraction has 1383 states and 2211 transitions. [2023-12-22 16:57:27,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:27,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2211 transitions. [2023-12-22 16:57:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 16:57:27,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:57:27,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:57:27,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 16:57:27,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:27,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:57:27,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:57:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1754070009, now seen corresponding path program 1 times [2023-12-22 16:57:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:57:27,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52180594] [2023-12-22 16:57:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:57:27,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:27,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:57:27,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:57:27,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 16:57:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:57:27,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:57:27,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:57:28,053 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:57:28,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:57:28,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:57:28,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52180594] [2023-12-22 16:57:28,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52180594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:57:28,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:57:28,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:57:28,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415374007] [2023-12-22 16:57:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:57:28,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:57:28,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:57:28,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:57:28,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:57:28,055 INFO L87 Difference]: Start difference. First operand 1383 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:57:45,266 INFO L93 Difference]: Finished difference Result 3455 states and 5736 transitions. [2023-12-22 16:57:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:57:45,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-22 16:57:45,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:57:45,272 INFO L225 Difference]: With dead ends: 3455 [2023-12-22 16:57:45,272 INFO L226 Difference]: Without dead ends: 2073 [2023-12-22 16:57:45,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:57:45,274 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 714 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-12-22 16:57:45,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2023-12-22 16:57:45,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-12-22 16:57:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2073. [2023-12-22 16:57:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 1.3687258687258688) internal successors, (2836), 2072 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2836 transitions. [2023-12-22 16:57:45,303 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2836 transitions. Word has length 112 [2023-12-22 16:57:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:57:45,305 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 2836 transitions. [2023-12-22 16:57:45,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2836 transitions. [2023-12-22 16:57:45,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 16:57:45,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:57:45,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:57:45,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 16:57:45,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:45,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:57:45,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:57:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash -486243007, now seen corresponding path program 1 times [2023-12-22 16:57:45,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:57:45,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659501952] [2023-12-22 16:57:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:57:45,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:57:45,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:57:45,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:57:45,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 16:57:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:57:45,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:57:45,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:57:45,959 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:57:45,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:57:45,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:57:45,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659501952] [2023-12-22 16:57:45,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659501952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:57:45,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:57:45,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:57:45,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050691960] [2023-12-22 16:57:45,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:57:45,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:57:45,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:57:45,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:57:45,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:57:45,966 INFO L87 Difference]: Start difference. First operand 2073 states and 2836 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:05,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:58:05,376 INFO L93 Difference]: Finished difference Result 6215 states and 8505 transitions. [2023-12-22 16:58:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:58:05,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2023-12-22 16:58:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:58:05,388 INFO L225 Difference]: With dead ends: 6215 [2023-12-22 16:58:05,388 INFO L226 Difference]: Without dead ends: 4143 [2023-12-22 16:58:05,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:58:05,392 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 599 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-12-22 16:58:05,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 634 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2023-12-22 16:58:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2023-12-22 16:58:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2023-12-22 16:58:05,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.209077740222115) internal successors, (5008), 4142 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5008 transitions. [2023-12-22 16:58:05,467 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5008 transitions. Word has length 140 [2023-12-22 16:58:05,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:58:05,469 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 5008 transitions. [2023-12-22 16:58:05,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5008 transitions. [2023-12-22 16:58:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-22 16:58:05,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:58:05,472 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 16:58:05,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 16:58:05,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:58:05,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:58:05,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:58:05,678 INFO L85 PathProgramCache]: Analyzing trace with hash -392852294, now seen corresponding path program 1 times [2023-12-22 16:58:05,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:58:05,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379907306] [2023-12-22 16:58:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:58:05,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:58:05,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:58:05,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:58:05,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 16:58:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:58:05,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:58:05,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:58:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 50 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:58:06,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:58:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 50 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:58:07,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:58:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379907306] [2023-12-22 16:58:07,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379907306] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 16:58:07,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 16:58:07,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 16:58:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876791603] [2023-12-22 16:58:07,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 16:58:07,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 16:58:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:58:07,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 16:58:07,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 16:58:07,158 INFO L87 Difference]: Start difference. First operand 4143 states and 5008 transitions. Second operand has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:58:46,120 INFO L93 Difference]: Finished difference Result 11151 states and 14374 transitions. [2023-12-22 16:58:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 16:58:46,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 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 322 [2023-12-22 16:58:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:58:46,137 INFO L225 Difference]: With dead ends: 11151 [2023-12-22 16:58:46,137 INFO L226 Difference]: Without dead ends: 6213 [2023-12-22 16:58:46,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-22 16:58:46,141 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 5870 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9841 mSolverCounterSat, 1517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5870 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 11358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 9841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-12-22 16:58:46,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5870 Valid, 167 Invalid, 11358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1517 Valid, 9841 Invalid, 0 Unknown, 0 Unchecked, 38.6s Time] [2023-12-22 16:58:46,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2023-12-22 16:58:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 6213. [2023-12-22 16:58:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 1.0838699291693497) internal successors, (6733), 6212 states have internal predecessors, (6733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 6733 transitions. [2023-12-22 16:58:46,208 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 6733 transitions. Word has length 322 [2023-12-22 16:58:46,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:58:46,209 INFO L495 AbstractCegarLoop]: Abstraction has 6213 states and 6733 transitions. [2023-12-22 16:58:46,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 6733 transitions. [2023-12-22 16:58:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2023-12-22 16:58:46,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:58:46,224 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:58:46,228 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 [2023-12-22 16:58:46,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:58:46,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:58:46,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:58:46,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1616745784, now seen corresponding path program 1 times [2023-12-22 16:58:46,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:58:46,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528843972] [2023-12-22 16:58:46,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:58:46,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:58:46,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:58:46,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:58:46,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 16:58:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:58:46,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:58:46,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:58:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-12-22 16:58:48,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:58:48,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:58:48,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528843972] [2023-12-22 16:58:48,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528843972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:58:48,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:58:48,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:58:48,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18648210] [2023-12-22 16:58:48,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:58:48,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:58:48,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:58:48,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:58:48,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:58:48,536 INFO L87 Difference]: Start difference. First operand 6213 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:58:57,881 INFO L93 Difference]: Finished difference Result 11045 states and 12075 transitions. [2023-12-22 16:58:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:58:57,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 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 745 [2023-12-22 16:58:57,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:58:57,897 INFO L225 Difference]: With dead ends: 11045 [2023-12-22 16:58:57,898 INFO L226 Difference]: Without dead ends: 6213 [2023-12-22 16:58:57,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:58:57,901 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 176 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-22 16:58:57,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 376 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-22 16:58:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2023-12-22 16:58:57,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 6213. [2023-12-22 16:58:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 1.0829040566645203) internal successors, (6727), 6212 states have internal predecessors, (6727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 6727 transitions. [2023-12-22 16:58:57,957 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 6727 transitions. Word has length 745 [2023-12-22 16:58:57,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:58:57,957 INFO L495 AbstractCegarLoop]: Abstraction has 6213 states and 6727 transitions. [2023-12-22 16:58:57,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:58:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 6727 transitions. [2023-12-22 16:58:57,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2023-12-22 16:58:57,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:58:57,971 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:58:57,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 16:58:58,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:58:58,177 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:58:58,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:58:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2107882267, now seen corresponding path program 1 times [2023-12-22 16:58:58,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:58:58,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786767580] [2023-12-22 16:58:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:58:58,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:58:58,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:58:58,182 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:58:58,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 16:58:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:58:58,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:58:58,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:58:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:58:59,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:58:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:58:59,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:58:59,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786767580] [2023-12-22 16:58:59,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786767580] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:58:59,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:58:59,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 16:58:59,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892252189] [2023-12-22 16:58:59,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:58:59,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:58:59,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:58:59,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:58:59,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 16:58:59,636 INFO L87 Difference]: Start difference. First operand 6213 states and 6727 transitions. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:07,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:59:13,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:59:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:59:58,918 INFO L93 Difference]: Finished difference Result 13115 states and 14534 transitions. [2023-12-22 16:59:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:59:58,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 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 861 [2023-12-22 16:59:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:59:58,948 INFO L225 Difference]: With dead ends: 13115 [2023-12-22 16:59:58,948 INFO L226 Difference]: Without dead ends: 8283 [2023-12-22 16:59:58,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1720 GetRequests, 1717 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 16:59:58,953 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 694 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.2s IncrementalHoareTripleChecker+Time [2023-12-22 16:59:58,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 114 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 59.2s Time] [2023-12-22 16:59:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2023-12-22 16:59:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 8283. [2023-12-22 16:59:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 8282 states have (on average 1.0961120502294133) internal successors, (9078), 8282 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 9078 transitions. [2023-12-22 16:59:59,052 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 9078 transitions. Word has length 861 [2023-12-22 16:59:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:59:59,053 INFO L495 AbstractCegarLoop]: Abstraction has 8283 states and 9078 transitions. [2023-12-22 16:59:59,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 9078 transitions. [2023-12-22 16:59:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2023-12-22 16:59:59,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:59:59,060 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:59:59,084 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 (8)] Ended with exit code 0 [2023-12-22 16:59:59,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:59:59,288 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:59:59,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:59:59,288 INFO L85 PathProgramCache]: Analyzing trace with hash -103995969, now seen corresponding path program 1 times [2023-12-22 16:59:59,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:59:59,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78082193] [2023-12-22 16:59:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:59:59,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:59:59,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:59:59,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 16:59:59,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 16:59:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:59:59,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:59:59,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:59:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:59:59,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:59:59,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:59:59,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78082193] [2023-12-22 16:59:59,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78082193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:59:59,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:59:59,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:59:59,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422724231] [2023-12-22 16:59:59,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:59:59,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:59:59,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:59:59,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:59:59,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:59:59,641 INFO L87 Difference]: Start difference. First operand 8283 states and 9078 transitions. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:00:14,359 INFO L93 Difference]: Finished difference Result 19325 states and 21639 transitions. [2023-12-22 17:00:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:00:14,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 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 933 [2023-12-22 17:00:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:00:14,376 INFO L225 Difference]: With dead ends: 19325 [2023-12-22 17:00:14,376 INFO L226 Difference]: Without dead ends: 12423 [2023-12-22 17:00:14,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 931 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:00:14,382 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 620 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-22 17:00:14,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1010 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-12-22 17:00:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12423 states. [2023-12-22 17:00:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12423 to 12423. [2023-12-22 17:00:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12423 states, 12422 states have (on average 1.088472065689905) internal successors, (13521), 12422 states have internal predecessors, (13521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12423 states to 12423 states and 13521 transitions. [2023-12-22 17:00:14,495 INFO L78 Accepts]: Start accepts. Automaton has 12423 states and 13521 transitions. Word has length 933 [2023-12-22 17:00:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:00:14,496 INFO L495 AbstractCegarLoop]: Abstraction has 12423 states and 13521 transitions. [2023-12-22 17:00:14,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 12423 states and 13521 transitions. [2023-12-22 17:00:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2023-12-22 17:00:14,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:00:14,505 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:00:14,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 17:00:14,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:00:14,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:00:14,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:00:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1889593685, now seen corresponding path program 1 times [2023-12-22 17:00:14,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:00:14,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71569492] [2023-12-22 17:00:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:00:14,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:00:14,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:00:14,724 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:00:14,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 17:00:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:00:14,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:00:15,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:00:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2023-12-22 17:00:16,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:00:16,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:00:16,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71569492] [2023-12-22 17:00:16,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71569492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:00:16,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:00:16,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:00:16,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815963807] [2023-12-22 17:00:16,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:00:16,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:00:16,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:00:16,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:00:16,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:00:16,149 INFO L87 Difference]: Start difference. First operand 12423 states and 13521 transitions. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:31,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:00:31,016 INFO L93 Difference]: Finished difference Result 31745 states and 34968 transitions. [2023-12-22 17:00:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:00:31,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 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 994 [2023-12-22 17:00:31,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:00:31,059 INFO L225 Difference]: With dead ends: 31745 [2023-12-22 17:00:31,059 INFO L226 Difference]: Without dead ends: 20703 [2023-12-22 17:00:31,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:00:31,071 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 180 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-12-22 17:00:31,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 364 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2023-12-22 17:00:31,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20703 states. [2023-12-22 17:00:31,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20703 to 20703. [2023-12-22 17:00:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20703 states, 20702 states have (on average 1.0643899140179693) internal successors, (22035), 20702 states have internal predecessors, (22035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20703 states to 20703 states and 22035 transitions. [2023-12-22 17:00:31,353 INFO L78 Accepts]: Start accepts. Automaton has 20703 states and 22035 transitions. Word has length 994 [2023-12-22 17:00:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:00:31,354 INFO L495 AbstractCegarLoop]: Abstraction has 20703 states and 22035 transitions. [2023-12-22 17:00:31,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 20703 states and 22035 transitions. [2023-12-22 17:00:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2023-12-22 17:00:31,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:00:31,362 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:00:31,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 17:00:31,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:00:31,569 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:00:31,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:00:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 665328402, now seen corresponding path program 1 times [2023-12-22 17:00:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:00:31,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219364828] [2023-12-22 17:00:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:00:31,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:00:31,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:00:31,574 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:00:31,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 17:00:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:00:31,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:00:31,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:00:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 408 proven. 172 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-12-22 17:00:33,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:00:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-12-22 17:00:33,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:00:33,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219364828] [2023-12-22 17:00:33,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219364828] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 17:00:33,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 17:00:33,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 17:00:33,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452563542] [2023-12-22 17:00:33,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:00:33,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:00:33,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:00:33,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:00:33,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 17:00:33,577 INFO L87 Difference]: Start difference. First operand 20703 states and 22035 transitions. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:58,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:01:01,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:01:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:01:06,552 INFO L93 Difference]: Finished difference Result 45545 states and 48658 transitions. [2023-12-22 17:01:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:01:06,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 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 1040 [2023-12-22 17:01:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:01:06,588 INFO L225 Difference]: With dead ends: 45545 [2023-12-22 17:01:06,588 INFO L226 Difference]: Without dead ends: 26223 [2023-12-22 17:01:06,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2078 GetRequests, 2075 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 17:01:06,602 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 629 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2023-12-22 17:01:06,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 206 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 32.8s Time] [2023-12-22 17:01:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26223 states. [2023-12-22 17:01:06,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26223 to 26223. [2023-12-22 17:01:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26223 states, 26222 states have (on average 1.0623140874075203) internal successors, (27856), 26222 states have internal predecessors, (27856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:01:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26223 states to 26223 states and 27856 transitions. [2023-12-22 17:01:06,874 INFO L78 Accepts]: Start accepts. Automaton has 26223 states and 27856 transitions. Word has length 1040 [2023-12-22 17:01:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:01:06,875 INFO L495 AbstractCegarLoop]: Abstraction has 26223 states and 27856 transitions. [2023-12-22 17:01:06,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:01:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 26223 states and 27856 transitions. [2023-12-22 17:01:06,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2023-12-22 17:01:06,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:01:06,885 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:01:06,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 17:01:07,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:01:07,092 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:01:07,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:01:07,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2127570376, now seen corresponding path program 1 times [2023-12-22 17:01:07,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:01:07,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639856058] [2023-12-22 17:01:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:01:07,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:01:07,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:01:07,098 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:01:07,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 17:01:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:01:07,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 17:01:07,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:01:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 183 proven. 556 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 17:01:10,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:01:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 17:01:11,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:01:11,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639856058] [2023-12-22 17:01:11,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639856058] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 17:01:11,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 17:01:11,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-22 17:01:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524480997] [2023-12-22 17:01:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:01:11,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:01:11,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:01:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:01:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 17:01:11,790 INFO L87 Difference]: Start difference. First operand 26223 states and 27856 transitions. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 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) [2023-12-22 17:01:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:01:39,479 INFO L93 Difference]: Finished difference Result 55205 states and 58798 transitions. [2023-12-22 17:01:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:01:39,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 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) Word has length 1093 [2023-12-22 17:01:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:01:39,509 INFO L225 Difference]: With dead ends: 55205 [2023-12-22 17:01:39,509 INFO L226 Difference]: Without dead ends: 30363 [2023-12-22 17:01:39,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2184 GetRequests, 2180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 17:01:39,521 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 622 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2023-12-22 17:01:39,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 52 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 27.5s Time] [2023-12-22 17:01:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30363 states. [2023-12-22 17:01:39,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30363 to 28293. [2023-12-22 17:01:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28293 states, 28292 states have (on average 1.0640463735331542) internal successors, (30104), 28292 states have internal predecessors, (30104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:01:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28293 states to 28293 states and 30104 transitions. [2023-12-22 17:01:39,860 INFO L78 Accepts]: Start accepts. Automaton has 28293 states and 30104 transitions. Word has length 1093 [2023-12-22 17:01:39,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:01:39,861 INFO L495 AbstractCegarLoop]: Abstraction has 28293 states and 30104 transitions. [2023-12-22 17:01:39,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 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) [2023-12-22 17:01:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 28293 states and 30104 transitions. [2023-12-22 17:01:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2023-12-22 17:01:39,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:01:39,870 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:01:39,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 17:01:40,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:01:40,077 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:01:40,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:01:40,077 INFO L85 PathProgramCache]: Analyzing trace with hash -399250283, now seen corresponding path program 1 times [2023-12-22 17:01:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:01:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649032344] [2023-12-22 17:01:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:01:40,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:01:40,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:01:40,082 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:01:40,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 17:01:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:01:40,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:01:40,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:01:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2023-12-22 17:01:40,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:01:40,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:01:40,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649032344] [2023-12-22 17:01:40,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649032344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:01:40,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:01:40,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 17:01:40,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028732667] [2023-12-22 17:01:40,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:01:40,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:01:40,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:01:40,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:01:40,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:01:40,468 INFO L87 Difference]: Start difference. First operand 28293 states and 30104 transitions. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:01:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:01:54,882 INFO L93 Difference]: Finished difference Result 66245 states and 70858 transitions. [2023-12-22 17:01:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:01:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 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 1107 [2023-12-22 17:01:54,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:01:54,922 INFO L225 Difference]: With dead ends: 66245 [2023-12-22 17:01:54,923 INFO L226 Difference]: Without dead ends: 38643 [2023-12-22 17:01:54,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1106 GetRequests, 1105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:01:54,939 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 646 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-22 17:01:54,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1044 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2023-12-22 17:01:54,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38643 states. [2023-12-22 17:01:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38643 to 37263. [2023-12-22 17:01:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37263 states, 37262 states have (on average 1.0603295582631098) internal successors, (39510), 37262 states have internal predecessors, (39510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:01:55,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37263 states to 37263 states and 39510 transitions. [2023-12-22 17:01:55,450 INFO L78 Accepts]: Start accepts. Automaton has 37263 states and 39510 transitions. Word has length 1107 [2023-12-22 17:01:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:01:55,450 INFO L495 AbstractCegarLoop]: Abstraction has 37263 states and 39510 transitions. [2023-12-22 17:01:55,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:01:55,451 INFO L276 IsEmpty]: Start isEmpty. Operand 37263 states and 39510 transitions. [2023-12-22 17:01:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2023-12-22 17:01:55,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:01:55,470 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:01:55,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 17:01:55,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:01:55,675 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:01:55,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:01:55,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1540704449, now seen corresponding path program 1 times [2023-12-22 17:01:55,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:01:55,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000738959] [2023-12-22 17:01:55,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:01:55,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:01:55,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:01:55,681 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:01:55,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 17:01:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:01:56,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 17:01:56,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:01:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 596 proven. 493 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-12-22 17:01:57,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:02:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 1089 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-12-22 17:02:05,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:02:05,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000738959] [2023-12-22 17:02:05,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000738959] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 17:02:05,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 17:02:05,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-12-22 17:02:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217220928] [2023-12-22 17:02:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:02:05,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 17:02:05,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:02:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 17:02:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 17:02:05,534 INFO L87 Difference]: Start difference. First operand 37263 states and 39510 transitions. Second operand has 4 states, 4 states have (on average 211.25) internal successors, (845), 4 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:02:33,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:02:52,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:02:56,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:02:58,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:03:08,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:03:22,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:03:38,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:03:40,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:09,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:12,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:16,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:28,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:31,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:35,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:40,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:46,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:04:50,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:14,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:19,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:25,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:30,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:35,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:36,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:45,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:49,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:50,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:05:50,153 INFO L93 Difference]: Finished difference Result 88325 states and 94345 transitions. [2023-12-22 17:05:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 17:05:50,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 211.25) internal successors, (845), 4 states have internal predecessors, (845), 0 states have call successors, (0), 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 1186 [2023-12-22 17:05:50,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:05:50,296 INFO L225 Difference]: With dead ends: 88325 [2023-12-22 17:05:50,296 INFO L226 Difference]: Without dead ends: 51753 [2023-12-22 17:05:50,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2370 GetRequests, 2365 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 17:05:50,338 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 1265 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 214.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 4118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 224.1s IncrementalHoareTripleChecker+Time [2023-12-22 17:05:50,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 133 Invalid, 4118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [734 Valid, 3384 Invalid, 0 Unknown, 0 Unchecked, 224.1s Time] [2023-12-22 17:05:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51753 states. [2023-12-22 17:05:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51753 to 44163. [2023-12-22 17:05:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44163 states, 44162 states have (on average 1.060345998822517) internal successors, (46827), 44162 states have internal predecessors, (46827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44163 states to 44163 states and 46827 transitions. [2023-12-22 17:05:50,816 INFO L78 Accepts]: Start accepts. Automaton has 44163 states and 46827 transitions. Word has length 1186 [2023-12-22 17:05:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:05:50,817 INFO L495 AbstractCegarLoop]: Abstraction has 44163 states and 46827 transitions. [2023-12-22 17:05:50,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.25) internal successors, (845), 4 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 44163 states and 46827 transitions. [2023-12-22 17:05:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1273 [2023-12-22 17:05:50,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:05:50,970 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:05:50,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 17:05:51,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:05:51,178 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:05:51,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:05:51,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1876174360, now seen corresponding path program 1 times [2023-12-22 17:05:51,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:05:51,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864483111] [2023-12-22 17:05:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:05:51,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:05:51,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:05:51,183 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:05:51,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 17:05:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:05:51,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:05:51,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:05:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1154 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2023-12-22 17:05:51,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:05:51,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:05:51,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864483111] [2023-12-22 17:05:51,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864483111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:05:51,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:05:51,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 17:05:51,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992693328] [2023-12-22 17:05:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:05:51,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:05:51,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:05:51,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:05:51,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:05:51,686 INFO L87 Difference]: Start difference. First operand 44163 states and 46827 transitions. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:08,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:06:08,055 INFO L93 Difference]: Finished difference Result 97985 states and 104266 transitions. [2023-12-22 17:06:08,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:06:08,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 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 1272 [2023-12-22 17:06:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:06:08,116 INFO L225 Difference]: With dead ends: 97985 [2023-12-22 17:06:08,116 INFO L226 Difference]: Without dead ends: 54513 [2023-12-22 17:06:08,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1271 GetRequests, 1270 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:06:08,140 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 609 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:06:08,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1025 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2023-12-22 17:06:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54513 states. [2023-12-22 17:06:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54513 to 50373. [2023-12-22 17:06:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50373 states, 50372 states have (on average 1.0605098070356547) internal successors, (53420), 50372 states have internal predecessors, (53420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:08,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50373 states to 50373 states and 53420 transitions. [2023-12-22 17:06:08,797 INFO L78 Accepts]: Start accepts. Automaton has 50373 states and 53420 transitions. Word has length 1272 [2023-12-22 17:06:08,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:06:08,797 INFO L495 AbstractCegarLoop]: Abstraction has 50373 states and 53420 transitions. [2023-12-22 17:06:08,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:08,797 INFO L276 IsEmpty]: Start isEmpty. Operand 50373 states and 53420 transitions. [2023-12-22 17:06:08,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2023-12-22 17:06:08,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:06:09,008 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:06:09,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-22 17:06:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:06:09,214 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:06:09,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:06:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1190865836, now seen corresponding path program 1 times [2023-12-22 17:06:09,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:06:09,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518120989] [2023-12-22 17:06:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:06:09,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:06:09,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:06:09,219 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:06:09,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 17:06:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:06:09,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 17:06:09,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:06:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 598 proven. 1013 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-12-22 17:06:11,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:06:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 1229 proven. 104 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2023-12-22 17:06:18,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:06:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518120989] [2023-12-22 17:06:18,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518120989] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 17:06:18,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 17:06:18,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-12-22 17:06:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351846498] [2023-12-22 17:06:18,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 17:06:18,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 17:06:18,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:06:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 17:06:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-22 17:06:18,091 INFO L87 Difference]: Start difference. First operand 50373 states and 53420 transitions. Second operand has 8 states, 8 states have (on average 209.125) internal successors, (1673), 8 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:06:51,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:07:11,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:07:15,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:08:02,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:08:08,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:08:20,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:08:26,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:08:36,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:08:55,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:09:00,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:09:12,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:09:15,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:09:19,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:09:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:09:48,175 INFO L93 Difference]: Finished difference Result 117995 states and 126077 transitions. [2023-12-22 17:09:48,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 17:09:48,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 209.125) internal successors, (1673), 8 states have internal predecessors, (1673), 0 states have call successors, (0), 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 1285 [2023-12-22 17:09:48,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:09:48,318 INFO L225 Difference]: With dead ends: 117995 [2023-12-22 17:09:48,318 INFO L226 Difference]: Without dead ends: 68313 [2023-12-22 17:09:48,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2570 GetRequests, 2563 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-22 17:09:48,370 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5283 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12774 mSolverCounterSat, 1590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 191.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5283 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 14364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1590 IncrementalHoareTripleChecker+Valid, 12774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:09:48,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5283 Valid, 89 Invalid, 14364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1590 Valid, 12774 Invalid, 0 Unknown, 0 Unchecked, 208.9s Time] [2023-12-22 17:09:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68313 states. [2023-12-22 17:09:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68313 to 56583. [2023-12-22 17:09:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56583 states, 56582 states have (on average 1.0630589233325085) internal successors, (60150), 56582 states have internal predecessors, (60150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:09:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56583 states to 56583 states and 60150 transitions. [2023-12-22 17:09:49,174 INFO L78 Accepts]: Start accepts. Automaton has 56583 states and 60150 transitions. Word has length 1285 [2023-12-22 17:09:49,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:09:49,175 INFO L495 AbstractCegarLoop]: Abstraction has 56583 states and 60150 transitions. [2023-12-22 17:09:49,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 209.125) internal successors, (1673), 8 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:09:49,175 INFO L276 IsEmpty]: Start isEmpty. Operand 56583 states and 60150 transitions. [2023-12-22 17:09:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2023-12-22 17:09:49,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:09:49,188 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:09:49,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 17:09:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:09:49,409 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:09:49,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:09:49,410 INFO L85 PathProgramCache]: Analyzing trace with hash -908245330, now seen corresponding path program 1 times [2023-12-22 17:09:49,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:09:49,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819235350] [2023-12-22 17:09:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:09:49,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:09:49,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:09:49,433 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 17:09:49,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 17:09:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:09:49,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 17:09:49,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:09:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 0 proven. 1446 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 17:09:51,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:09:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 1076 proven. 92 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 17:09:57,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:09:57,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819235350] [2023-12-22 17:09:57,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819235350] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 17:09:57,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 17:09:57,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-12-22 17:09:57,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78225706] [2023-12-22 17:09:57,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 17:09:57,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 17:09:57,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:09:57,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 17:09:57,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-22 17:09:57,187 INFO L87 Difference]: Start difference. First operand 56583 states and 60150 transitions. Second operand has 10 states, 10 states have (on average 185.6) internal successors, (1856), 10 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:10:23,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 17:11:25,190 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:11:25,191 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 (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:11:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 17:11:25,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2588 GetRequests, 2579 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-22 17:11:25,872 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5372 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 17856 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5372 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 18540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 17856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.2s IncrementalHoareTripleChecker+Time [2023-12-22 17:11:25,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5372 Valid, 122 Invalid, 18540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [684 Valid, 17856 Invalid, 0 Unknown, 0 Unchecked, 88.2s Time] [2023-12-22 17:11:25,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 17:11:25,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 17:11:26,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:11:26,074 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (56583states) and FLOYD_HOARE automaton (currently 9 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (31789 states constructed, input type IntersectNwa). [2023-12-22 17:11:26,079 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:11:26,080 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 17:11:26,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:11:26 BoogieIcfgContainer [2023-12-22 17:11:26,082 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 17:11:26,082 INFO L158 Benchmark]: Toolchain (without parser) took 870492.41ms. Allocated memory was 182.5MB in the beginning and 679.5MB in the end (delta: 497.0MB). Free memory was 123.6MB in the beginning and 237.9MB in the end (delta: -114.3MB). Peak memory consumption was 417.0MB. Max. memory is 8.0GB. [2023-12-22 17:11:26,082 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 182.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 17:11:26,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1112.94ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 123.3MB in the beginning and 175.5MB in the end (delta: -52.2MB). Peak memory consumption was 92.4MB. Max. memory is 8.0GB. [2023-12-22 17:11:26,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 157.90ms. Allocated memory is still 230.7MB. Free memory was 175.5MB in the beginning and 160.7MB in the end (delta: 14.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-22 17:11:26,086 INFO L158 Benchmark]: Boogie Preprocessor took 175.29ms. Allocated memory is still 230.7MB. Free memory was 160.7MB in the beginning and 134.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-22 17:11:26,086 INFO L158 Benchmark]: RCFGBuilder took 13154.13ms. Allocated memory was 230.7MB in the beginning and 338.7MB in the end (delta: 108.0MB). Free memory was 134.0MB in the beginning and 160.4MB in the end (delta: -26.4MB). Peak memory consumption was 120.1MB. Max. memory is 8.0GB. [2023-12-22 17:11:26,086 INFO L158 Benchmark]: TraceAbstraction took 855886.20ms. Allocated memory was 338.7MB in the beginning and 679.5MB in the end (delta: 340.8MB). Free memory was 159.9MB in the beginning and 237.9MB in the end (delta: -78.1MB). Peak memory consumption was 295.9MB. Max. memory is 8.0GB. [2023-12-22 17:11:26,089 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 182.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1112.94ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 123.3MB in the beginning and 175.5MB in the end (delta: -52.2MB). Peak memory consumption was 92.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 157.90ms. Allocated memory is still 230.7MB. Free memory was 175.5MB in the beginning and 160.7MB in the end (delta: 14.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 175.29ms. Allocated memory is still 230.7MB. Free memory was 160.7MB in the beginning and 134.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * RCFGBuilder took 13154.13ms. Allocated memory was 230.7MB in the beginning and 338.7MB in the end (delta: 108.0MB). Free memory was 134.0MB in the beginning and 160.4MB in the end (delta: -26.4MB). Peak memory consumption was 120.1MB. Max. memory is 8.0GB. * TraceAbstraction took 855886.20ms. Allocated memory was 338.7MB in the beginning and 679.5MB in the end (delta: 340.8MB). Free memory was 159.9MB in the beginning and 237.9MB in the end (delta: -78.1MB). Peak memory consumption was 295.9MB. 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: 163]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 163). Cancelled while NwaCegarLoop was constructing difference of abstraction (56583states) and FLOYD_HOARE automaton (currently 9 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (31789 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 695 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 855.8s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 806.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24007 SdHoareTripleChecker+Valid, 800.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24007 mSDsluCounter, 7615 SdHoareTripleChecker+Invalid, 734.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 311 mSDsCounter, 8914 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64525 IncrementalHoareTripleChecker+Invalid, 73439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8914 mSolverCounterUnsat, 7304 mSDtfsCounter, 64525 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19543 GetRequests, 19496 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56583occurred in iteration=15, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 15 MinimizatonAttempts, 26910 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 38.2s InterpolantComputationTime, 12478 NumberOfCodeBlocks, 12478 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 19536 ConstructedInterpolants, 0 QuantifiedInterpolants, 56780 SizeOfPredicates, 5 NumberOfNonLiveVariables, 13430 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 23 InterpolantComputations, 13 PerfectInterpolantSequences, 15918/20152 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