/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/Problem10_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 08:56:50,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 08:56:50,832 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 08:56:50,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 08:56:50,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 08:56:50,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 08:56:50,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 08:56:50,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 08:56:50,860 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 08:56:50,863 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 08:56:50,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 08:56:50,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 08:56:50,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 08:56:50,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 08:56:50,865 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 08:56:50,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 08:56:50,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 08:56:50,866 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 08:56:50,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 08:56:50,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 08:56:50,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 08:56:50,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 08:56:50,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 08:56:50,868 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 08:56:50,868 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 08:56:50,868 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 08:56:50,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 08:56:50,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 08:56:50,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 08:56:50,869 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 08:56:50,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 08:56:50,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 08:56:50,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 08:56:50,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 08:56:50,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 08:56:50,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 08:56:50,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 08:56:50,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 08:56:50,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 08:56:50,872 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 08:56:50,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 08:56:51,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 08:56:51,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 08:56:51,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 08:56:51,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 08:56:51,148 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 08:56:51,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56.c [2023-12-22 08:56:52,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 08:56:52,550 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 08:56:52,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56.c [2023-12-22 08:56:52,576 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04805f7db/8be53aa9f9ec46bc8a5ce62485e2553a/FLAG26cba58ef [2023-12-22 08:56:52,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04805f7db/8be53aa9f9ec46bc8a5ce62485e2553a [2023-12-22 08:56:52,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 08:56:52,591 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 08:56:52,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 08:56:52,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 08:56:52,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 08:56:52,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:56:52" (1/1) ... [2023-12-22 08:56:52,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb9eb20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:52, skipping insertion in model container [2023-12-22 08:56:52,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:56:52" (1/1) ... [2023-12-22 08:56:52,637 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 08:56:52,775 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/Problem10_label56.c[2832,2845] [2023-12-22 08:56:52,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 08:56:52,941 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 08:56:52,968 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/Problem10_label56.c[2832,2845] [2023-12-22 08:56:53,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 08:56:53,042 INFO L206 MainTranslator]: Completed translation [2023-12-22 08:56:53,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53 WrapperNode [2023-12-22 08:56:53,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 08:56:53,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 08:56:53,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 08:56:53,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 08:56:53,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,119 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 596 [2023-12-22 08:56:53,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 08:56:53,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 08:56:53,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 08:56:53,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 08:56:53,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,158 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 08:56:53,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 08:56:53,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 08:56:53,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 08:56:53,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 08:56:53,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (1/1) ... [2023-12-22 08:56:53,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 08:56:53,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 08:56:53,233 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 08:56:53,256 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 08:56:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 08:56:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 08:56:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 08:56:53,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 08:56:53,314 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 08:56:53,316 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 08:56:55,619 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 08:56:55,670 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 08:56:55,670 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 08:56:55,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:56:55 BoogieIcfgContainer [2023-12-22 08:56:55,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 08:56:55,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 08:56:55,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 08:56:55,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 08:56:55,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:56:52" (1/3) ... [2023-12-22 08:56:55,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c4ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:56:55, skipping insertion in model container [2023-12-22 08:56:55,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:53" (2/3) ... [2023-12-22 08:56:55,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c4ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:56:55, skipping insertion in model container [2023-12-22 08:56:55,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:56:55" (3/3) ... [2023-12-22 08:56:55,678 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label56.c [2023-12-22 08:56:55,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 08:56:55,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 08:56:55,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 08:56:55,747 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;@63c2e53a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 08:56:55,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 08:56:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states 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 08:56:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-22 08:56:55,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:56:55,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:56:55,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:56:55,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:56:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash 178922944, now seen corresponding path program 1 times [2023-12-22 08:56:55,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:56:55,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421505527] [2023-12-22 08:56:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:56:55,782 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 08:56:55,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:56:55,798 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 08:56:55,864 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 08:56:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:56:55,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 08:56:55,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:56:55,918 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 08:56:55,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:56:55,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:56:55,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421505527] [2023-12-22 08:56:55,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421505527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:56:55,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:56:55,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:56:55,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256928469] [2023-12-22 08:56:55,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:56:55,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 08:56:55,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:56:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 08:56:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 08:56:55,955 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 08:56:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:56:56,004 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-12-22 08:56:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 08:56:56,006 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2023-12-22 08:56:56,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:56:56,017 INFO L225 Difference]: With dead ends: 287 [2023-12-22 08:56:56,017 INFO L226 Difference]: Without dead ends: 142 [2023-12-22 08:56:56,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 08:56:56,023 INFO L413 NwaCegarLoop]: 217 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, 217 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 08:56:56,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 08:56:56,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-22 08:56:56,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-22 08:56:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 0 states have call successors, (0), 0 states 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 08:56:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-12-22 08:56:56,060 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 22 [2023-12-22 08:56:56,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:56:56,060 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-12-22 08:56:56,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 08:56:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-12-22 08:56:56,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-22 08:56:56,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:56:56,062 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] [2023-12-22 08:56:56,068 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 08:56:56,265 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 08:56:56,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:56:56,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:56:56,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1517123994, now seen corresponding path program 1 times [2023-12-22 08:56:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:56:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191676502] [2023-12-22 08:56:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:56:56,268 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 08:56:56,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:56:56,269 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 08:56:56,270 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 08:56:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:56:56,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:56:56,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:56:56,357 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 08:56:56,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:56:56,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:56:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191676502] [2023-12-22 08:56:56,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191676502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:56:56,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:56:56,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:56:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532932454] [2023-12-22 08:56:56,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:56:56,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:56:56,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:56:56,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:56:56,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:56:56,366 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 08:56:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:56:59,237 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-12-22 08:56:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:56:59,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2023-12-22 08:56:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:56:59,239 INFO L225 Difference]: With dead ends: 422 [2023-12-22 08:56:59,240 INFO L226 Difference]: Without dead ends: 281 [2023-12-22 08:56:59,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 08:56:59,241 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 155 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 08:56:59,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 34 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 08:56:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-22 08:56:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-12-22 08:56:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.45) internal successors, (406), 280 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 08:56:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 406 transitions. [2023-12-22 08:56:59,253 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 406 transitions. Word has length 22 [2023-12-22 08:56:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:56:59,255 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 406 transitions. [2023-12-22 08:56:59,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 08:56:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 406 transitions. [2023-12-22 08:56:59,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-22 08:56:59,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:56:59,257 INFO L195 NwaCegarLoop]: trace histogram [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 08:56:59,260 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 08:56:59,460 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 08:56:59,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:56:59,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:56:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash -267874178, now seen corresponding path program 1 times [2023-12-22 08:56:59,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:56:59,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751863694] [2023-12-22 08:56:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:56:59,462 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 08:56:59,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:56:59,464 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 08:56:59,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 08:56:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:56:59,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:56:59,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:56:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:56:59,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:56:59,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:56:59,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751863694] [2023-12-22 08:56:59,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751863694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:56:59,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:56:59,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:56:59,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030278101] [2023-12-22 08:56:59,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:56:59,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:56:59,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:56:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:56:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:56:59,664 INFO L87 Difference]: Start difference. First operand 281 states and 406 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:02,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:57:02,462 INFO L93 Difference]: Finished difference Result 839 states and 1215 transitions. [2023-12-22 08:57:02,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:57:02,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-22 08:57:02,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:57:02,465 INFO L225 Difference]: With dead ends: 839 [2023-12-22 08:57:02,465 INFO L226 Difference]: Without dead ends: 559 [2023-12-22 08:57:02,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:57:02,467 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 08:57:02,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 75 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 08:57:02,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-22 08:57:02,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-12-22 08:57:02,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2795698924731183) internal successors, (714), 558 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 08:57:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 714 transitions. [2023-12-22 08:57:02,484 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 714 transitions. Word has length 90 [2023-12-22 08:57:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:57:02,484 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 714 transitions. [2023-12-22 08:57:02,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 714 transitions. [2023-12-22 08:57:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-22 08:57:02,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:57:02,486 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:57:02,491 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 (4)] Ended with exit code 0 [2023-12-22 08:57:02,688 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 08:57:02,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:57:02,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:57:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2023565885, now seen corresponding path program 1 times [2023-12-22 08:57:02,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:57:02,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074210212] [2023-12-22 08:57:02,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:57:02,690 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 08:57:02,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:57:02,691 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 08:57:02,695 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 08:57:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:57:02,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 08:57:02,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:57:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:57:03,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:57:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:57:05,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:57:05,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074210212] [2023-12-22 08:57:05,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074210212] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:57:05,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:57:05,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 08:57:05,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753313188] [2023-12-22 08:57:05,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:57:05,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 08:57:05,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:57:05,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 08:57:05,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 08:57:05,507 INFO L87 Difference]: Start difference. First operand 559 states and 714 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:57:59,874 INFO L93 Difference]: Finished difference Result 2545 states and 3349 transitions. [2023-12-22 08:57:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 08:57:59,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-22 08:57:59,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:57:59,882 INFO L225 Difference]: With dead ends: 2545 [2023-12-22 08:57:59,883 INFO L226 Difference]: Without dead ends: 1987 [2023-12-22 08:57:59,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-22 08:57:59,885 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 995 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2023-12-22 08:57:59,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 50 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 54.0s Time] [2023-12-22 08:57:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2023-12-22 08:57:59,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1115. [2023-12-22 08:57:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.2253141831238779) internal successors, (1365), 1114 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states 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 08:57:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1365 transitions. [2023-12-22 08:57:59,925 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1365 transitions. Word has length 97 [2023-12-22 08:57:59,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:57:59,925 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1365 transitions. [2023-12-22 08:57:59,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1365 transitions. [2023-12-22 08:57:59,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-22 08:57:59,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:57:59,934 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 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 08:57:59,941 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 08:58:00,144 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 08:58:00,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:58:00,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:58:00,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1103602050, now seen corresponding path program 1 times [2023-12-22 08:58:00,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:58:00,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791813339] [2023-12-22 08:58:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:58:00,147 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 08:58:00,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:58:00,165 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 08:58:00,169 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 08:58:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:58:00,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:58:00,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:58:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-22 08:58:00,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:58:00,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:58:00,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791813339] [2023-12-22 08:58:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791813339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:58:00,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:58:00,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 08:58:00,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408532647] [2023-12-22 08:58:00,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:58:00,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:58:00,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:58:00,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:58:00,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:58:00,439 INFO L87 Difference]: Start difference. First operand 1115 states and 1365 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 08:58:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:58:03,444 INFO L93 Difference]: Finished difference Result 2507 states and 3203 transitions. [2023-12-22 08:58:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:58:03,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 174 [2023-12-22 08:58:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:58:03,448 INFO L225 Difference]: With dead ends: 2507 [2023-12-22 08:58:03,448 INFO L226 Difference]: Without dead ends: 1532 [2023-12-22 08:58:03,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 08:58:03,450 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 58 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-22 08:58:03,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 212 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-22 08:58:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-12-22 08:58:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1254. [2023-12-22 08:58:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.2083000798084598) internal successors, (1514), 1253 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states 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 08:58:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1514 transitions. [2023-12-22 08:58:03,469 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1514 transitions. Word has length 174 [2023-12-22 08:58:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:58:03,469 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1514 transitions. [2023-12-22 08:58:03,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 08:58:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1514 transitions. [2023-12-22 08:58:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-22 08:58:03,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:58:03,472 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 08:58:03,474 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 08:58:03,674 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 08:58:03,675 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:58:03,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:58:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash 986899390, now seen corresponding path program 1 times [2023-12-22 08:58:03,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:58:03,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662822651] [2023-12-22 08:58:03,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:58:03,677 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 08:58:03,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:58:03,678 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 08:58:03,679 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 08:58:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:58:03,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 08:58:03,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:58:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 08:58:04,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:58:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 18 proven. 95 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 08:58:07,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:58:07,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662822651] [2023-12-22 08:58:07,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662822651] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:58:07,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:58:07,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 08:58:07,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733763079] [2023-12-22 08:58:07,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:58:07,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 08:58:07,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:58:07,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 08:58:07,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 08:58:07,779 INFO L87 Difference]: Start difference. First operand 1254 states and 1514 transitions. Second operand has 7 states, 7 states have (on average 44.714285714285715) internal successors, (313), 6 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 08:58:18,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:58:29,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:58:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:58:43,176 INFO L93 Difference]: Finished difference Result 3240 states and 3921 transitions. [2023-12-22 08:58:43,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 08:58:43,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.714285714285715) internal successors, (313), 6 states have internal predecessors, (313), 0 states have call successors, (0), 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 220 [2023-12-22 08:58:43,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:58:43,185 INFO L225 Difference]: With dead ends: 3240 [2023-12-22 08:58:43,185 INFO L226 Difference]: Without dead ends: 1810 [2023-12-22 08:58:43,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-22 08:58:43,187 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 605 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2023-12-22 08:58:43,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 43 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 35.3s Time] [2023-12-22 08:58:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2023-12-22 08:58:43,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1254. [2023-12-22 08:58:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.203511572226656) internal successors, (1508), 1253 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states 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 08:58:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1508 transitions. [2023-12-22 08:58:43,218 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1508 transitions. Word has length 220 [2023-12-22 08:58:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:58:43,218 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1508 transitions. [2023-12-22 08:58:43,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.714285714285715) internal successors, (313), 6 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 08:58:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1508 transitions. [2023-12-22 08:58:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-22 08:58:43,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:58:43,220 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:43,224 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 08:58:43,424 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 08:58:43,425 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:58:43,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:58:43,425 INFO L85 PathProgramCache]: Analyzing trace with hash 466650809, now seen corresponding path program 1 times [2023-12-22 08:58:43,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:58:43,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99531898] [2023-12-22 08:58:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:58:43,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 08:58:43,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:58:43,428 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 08:58:43,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 08:58:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:58:43,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 08:58:43,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:58:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 41 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:58:44,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:58:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 117 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:58:46,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:58:46,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99531898] [2023-12-22 08:58:46,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99531898] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:58:46,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:58:46,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 08:58:46,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912548474] [2023-12-22 08:58:46,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:58:46,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 08:58:46,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:58:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 08:58:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 08:58:46,048 INFO L87 Difference]: Start difference. First operand 1254 states and 1508 transitions. Second operand has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states 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 08:58:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:58:51,040 INFO L93 Difference]: Finished difference Result 2796 states and 3408 transitions. [2023-12-22 08:58:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 08:58:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 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 241 [2023-12-22 08:58:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:58:51,045 INFO L225 Difference]: With dead ends: 2796 [2023-12-22 08:58:51,045 INFO L226 Difference]: Without dead ends: 1682 [2023-12-22 08:58:51,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-22 08:58:51,047 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 348 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-22 08:58:51,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 77 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-22 08:58:51,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-12-22 08:58:51,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1393. [2023-12-22 08:58:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.1867816091954022) internal successors, (1652), 1392 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states 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 08:58:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1652 transitions. [2023-12-22 08:58:51,085 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1652 transitions. Word has length 241 [2023-12-22 08:58:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:58:51,085 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1652 transitions. [2023-12-22 08:58:51,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states 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 08:58:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1652 transitions. [2023-12-22 08:58:51,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-22 08:58:51,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:58:51,088 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 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 08:58:51,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 08:58:51,290 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 08:58:51,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:58:51,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:58:51,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2049059289, now seen corresponding path program 1 times [2023-12-22 08:58:51,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:58:51,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377745357] [2023-12-22 08:58:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:58:51,293 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 08:58:51,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:58:51,294 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 08:58:51,304 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 08:58:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:58:51,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 08:58:51,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:58:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:58:51,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:59:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:59:12,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:59:12,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377745357] [2023-12-22 08:59:12,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377745357] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:59:12,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:59:12,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 08:59:12,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002887378] [2023-12-22 08:59:12,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:59:12,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 08:59:12,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:59:12,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 08:59:12,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-22 08:59:12,020 INFO L87 Difference]: Start difference. First operand 1393 states and 1652 transitions. Second operand has 9 states, 9 states have (on average 59.333333333333336) internal successors, (534), 8 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 08:59:25,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:27,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:35,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:39,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:41,095 WARN L539 Checker$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 08:59:48,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:50,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:55,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:00,030 WARN L539 Checker$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 09:00:05,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:07,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:08,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:11,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:14,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:17,033 WARN L539 Checker$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 09:00:18,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:20,215 WARN L539 Checker$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 09:00:26,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:28,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:35,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:42,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:45,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:49,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:52,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:58,707 WARN L539 Checker$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 09:00:59,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:04,352 WARN L539 Checker$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 09:01:09,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:12,408 WARN L539 Checker$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 09:01:16,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:21,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:30,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:46,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:48,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:52,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:55,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:56,707 WARN L539 Checker$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 09:02:02,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:07,661 WARN L539 Checker$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 09:02:15,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:26,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:28,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:30,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:37,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:38,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:40,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:45,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:47,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:49,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:02:57,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:01,684 WARN L539 Checker$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 09:03:09,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:14,088 WARN L539 Checker$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 09:03:18,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:21,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:25,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:27,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:31,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:33,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:37,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:40,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:42,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:48,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:51,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:52,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:03:59,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:00,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:04,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:05,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:07,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:08,254 WARN L539 Checker$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 09:04:11,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:14,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:16,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:20,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:23,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:27,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:33,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:34,530 WARN L539 Checker$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 09:04:37,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:40,163 WARN L539 Checker$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 09:04:47,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:50,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:53,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:04:56,263 WARN L539 Checker$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 09:04:59,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:02,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:08,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:11,094 WARN L539 Checker$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 09:05:13,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:18,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:22,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:24,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:25,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:27,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:30,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:34,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:37,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:39,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:42,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:05:43,661 WARN L539 Checker$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 09:05:47,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:05:47,919 INFO L93 Difference]: Finished difference Result 6709 states and 8275 transitions. [2023-12-22 09:05:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 09:05:47,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 59.333333333333336) internal successors, (534), 8 states have internal predecessors, (534), 0 states have call successors, (0), 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 270 [2023-12-22 09:05:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:05:47,939 INFO L225 Difference]: With dead ends: 6709 [2023-12-22 09:05:47,939 INFO L226 Difference]: Without dead ends: 5456 [2023-12-22 09:05:47,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-12-22 09:05:47,941 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1368 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 367.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 389.1s IncrementalHoareTripleChecker+Time [2023-12-22 09:05:47,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 69 Invalid, 4234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1007 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 389.1s Time] [2023-12-22 09:05:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2023-12-22 09:05:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 3061. [2023-12-22 09:05:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 3060 states have (on average 1.2016339869281045) internal successors, (3677), 3060 states have internal predecessors, (3677), 0 states have call successors, (0), 0 states 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 09:05:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 3677 transitions. [2023-12-22 09:05:47,983 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 3677 transitions. Word has length 270 [2023-12-22 09:05:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:05:47,983 INFO L495 AbstractCegarLoop]: Abstraction has 3061 states and 3677 transitions. [2023-12-22 09:05:47,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 59.333333333333336) internal successors, (534), 8 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 09:05:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 3677 transitions. [2023-12-22 09:05:47,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-12-22 09:05:47,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:05:47,987 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 09:05:47,991 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 (9)] Ended with exit code 0 [2023-12-22 09:05:48,190 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 09:05:48,191 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:05:48,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:05:48,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1057662624, now seen corresponding path program 1 times [2023-12-22 09:05:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:05:48,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195539777] [2023-12-22 09:05:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:05:48,193 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 09:05:48,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:05:48,194 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 09:05:48,212 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 09:05:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:05:48,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 09:05:48,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:05:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-22 09:05:48,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 09:05:48,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:05:48,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195539777] [2023-12-22 09:05:48,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195539777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 09:05:48,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 09:05:48,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 09:05:48,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097733729] [2023-12-22 09:05:48,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:05:48,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:05:48,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:05:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:05:48,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:05:48,462 INFO L87 Difference]: Start difference. First operand 3061 states and 3677 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states 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 09:05:51,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:05:51,731 INFO L93 Difference]: Finished difference Result 6816 states and 8226 transitions. [2023-12-22 09:05:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:05:51,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2023-12-22 09:05:51,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:05:51,739 INFO L225 Difference]: With dead ends: 6816 [2023-12-22 09:05:51,739 INFO L226 Difference]: Without dead ends: 3895 [2023-12-22 09:05:51,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:05:51,744 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 57 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-22 09:05:51,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 207 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-22 09:05:51,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3895 states. [2023-12-22 09:05:51,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3895 to 3617. [2023-12-22 09:05:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3616 states have (on average 1.168141592920354) internal successors, (4224), 3616 states have internal predecessors, (4224), 0 states have call successors, (0), 0 states 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 09:05:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4224 transitions. [2023-12-22 09:05:51,791 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4224 transitions. Word has length 300 [2023-12-22 09:05:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:05:51,791 INFO L495 AbstractCegarLoop]: Abstraction has 3617 states and 4224 transitions. [2023-12-22 09:05:51,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states 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 09:05:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4224 transitions. [2023-12-22 09:05:51,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-22 09:05:51,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:05:51,797 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 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] [2023-12-22 09:05:51,805 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 09:05:52,002 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 09:05:52,003 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:05:52,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:05:52,007 INFO L85 PathProgramCache]: Analyzing trace with hash 36183760, now seen corresponding path program 1 times [2023-12-22 09:05:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:05:52,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403750443] [2023-12-22 09:05:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:05:52,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:05:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:05:52,009 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 09:05:52,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 09:05:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:05:52,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 09:05:52,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:05:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-12-22 09:05:52,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 09:05:52,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:05:52,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403750443] [2023-12-22 09:05:52,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403750443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 09:05:52,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 09:05:52,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 09:05:52,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979098144] [2023-12-22 09:05:52,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:05:52,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:05:52,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:05:52,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:05:52,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:05:52,365 INFO L87 Difference]: Start difference. First operand 3617 states and 4224 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 09:05:55,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:05:55,753 INFO L93 Difference]: Finished difference Result 7372 states and 8715 transitions. [2023-12-22 09:05:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:05:55,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2023-12-22 09:05:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:05:55,763 INFO L225 Difference]: With dead ends: 7372 [2023-12-22 09:05:55,764 INFO L226 Difference]: Without dead ends: 3895 [2023-12-22 09:05:55,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 09:05:55,767 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 55 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-22 09:05:55,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 212 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-22 09:05:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3895 states. [2023-12-22 09:05:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3895 to 3756. [2023-12-22 09:05:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3755 states have (on average 1.1581890812250333) internal successors, (4349), 3755 states have internal predecessors, (4349), 0 states have call successors, (0), 0 states 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 09:05:55,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 4349 transitions. [2023-12-22 09:05:55,808 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 4349 transitions. Word has length 311 [2023-12-22 09:05:55,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:05:55,809 INFO L495 AbstractCegarLoop]: Abstraction has 3756 states and 4349 transitions. [2023-12-22 09:05:55,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 09:05:55,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 4349 transitions. [2023-12-22 09:05:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-12-22 09:05:55,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:05:55,813 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:05:55,818 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 09:05:56,016 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 09:05:56,017 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:05:56,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:05:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash 424025932, now seen corresponding path program 1 times [2023-12-22 09:05:56,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:05:56,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327439708] [2023-12-22 09:05:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:05:56,019 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 09:05:56,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:05:56,020 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 09:05:56,025 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 09:05:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:05:56,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 09:05:56,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:05:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 68 proven. 239 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:05:57,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:05:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 223 proven. 17 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-22 09:05:59,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:05:59,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327439708] [2023-12-22 09:05:59,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327439708] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:05:59,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:05:59,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-12-22 09:05:59,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772556876] [2023-12-22 09:05:59,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:05:59,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 09:05:59,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:05:59,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 09:05:59,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-22 09:05:59,011 INFO L87 Difference]: Start difference. First operand 3756 states and 4349 transitions. Second operand has 9 states, 9 states have (on average 62.666666666666664) internal successors, (564), 9 states have internal predecessors, (564), 0 states have call successors, (0), 0 states 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 09:06:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:06:09,607 INFO L93 Difference]: Finished difference Result 7936 states and 9371 transitions. [2023-12-22 09:06:09,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 09:06:09,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 62.666666666666664) internal successors, (564), 9 states have internal predecessors, (564), 0 states have call successors, (0), 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 324 [2023-12-22 09:06:09,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:06:09,622 INFO L225 Difference]: With dead ends: 7936 [2023-12-22 09:06:09,622 INFO L226 Difference]: Without dead ends: 4876 [2023-12-22 09:06:09,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-22 09:06:09,626 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 827 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2923 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-22 09:06:09,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 73 Invalid, 3143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2923 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-22 09:06:09,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2023-12-22 09:06:09,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 4590. [2023-12-22 09:06:09,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4589 states have (on average 1.1494879058618435) internal successors, (5275), 4589 states have internal predecessors, (5275), 0 states have call successors, (0), 0 states 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 09:06:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 5275 transitions. [2023-12-22 09:06:09,681 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 5275 transitions. Word has length 324 [2023-12-22 09:06:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:06:09,681 INFO L495 AbstractCegarLoop]: Abstraction has 4590 states and 5275 transitions. [2023-12-22 09:06:09,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 62.666666666666664) internal successors, (564), 9 states have internal predecessors, (564), 0 states have call successors, (0), 0 states 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 09:06:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 5275 transitions. [2023-12-22 09:06:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-12-22 09:06:09,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:06:09,685 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:06:09,692 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 09:06:09,889 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 09:06:09,890 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:06:09,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:06:09,890 INFO L85 PathProgramCache]: Analyzing trace with hash -178209806, now seen corresponding path program 1 times [2023-12-22 09:06:09,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:06:09,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264513785] [2023-12-22 09:06:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:06:09,892 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 09:06:09,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:06:09,893 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 09:06:09,894 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 09:06:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:06:09,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 09:06:10,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:06:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 62 proven. 262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:06:10,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:06:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-22 09:06:10,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:06:10,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264513785] [2023-12-22 09:06:10,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264513785] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 09:06:10,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 09:06:10,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-22 09:06:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441717474] [2023-12-22 09:06:10,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:06:10,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:06:10,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:06:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:06:10,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 09:06:10,966 INFO L87 Difference]: Start difference. First operand 4590 states and 5275 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 09:06:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:06:20,675 INFO L93 Difference]: Finished difference Result 9457 states and 10961 transitions. [2023-12-22 09:06:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:06:20,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2023-12-22 09:06:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:06:20,687 INFO L225 Difference]: With dead ends: 9457 [2023-12-22 09:06:20,688 INFO L226 Difference]: Without dead ends: 5563 [2023-12-22 09:06:20,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 09:06:20,692 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 56 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-22 09:06:20,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 38 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2023-12-22 09:06:20,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2023-12-22 09:06:20,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 4868. [2023-12-22 09:06:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 4867 states have (on average 1.1479350729402096) internal successors, (5587), 4867 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states 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 09:06:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5587 transitions. [2023-12-22 09:06:20,772 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5587 transitions. Word has length 330 [2023-12-22 09:06:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:06:20,772 INFO L495 AbstractCegarLoop]: Abstraction has 4868 states and 5587 transitions. [2023-12-22 09:06:20,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 09:06:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5587 transitions. [2023-12-22 09:06:20,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-12-22 09:06:20,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:06:20,778 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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 09:06:20,793 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 09:06:20,993 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 09:06:20,993 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:06:20,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:06:20,994 INFO L85 PathProgramCache]: Analyzing trace with hash -662480061, now seen corresponding path program 1 times [2023-12-22 09:06:20,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:06:20,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423511020] [2023-12-22 09:06:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:06:20,995 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 09:06:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:06:20,996 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 09:06:20,997 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 09:06:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:06:21,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 09:06:21,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:06:21,841 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 41 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:06:21,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:06:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:06:27,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:06:27,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423511020] [2023-12-22 09:06:27,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423511020] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 09:06:27,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 09:06:27,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-22 09:06:27,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624206402] [2023-12-22 09:06:27,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:06:27,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 09:06:27,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:06:27,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 09:06:27,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-22 09:06:27,791 INFO L87 Difference]: Start difference. First operand 4868 states and 5587 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states 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 09:06:54,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:07:11,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:07:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:07:18,981 INFO L93 Difference]: Finished difference Result 9896 states and 11387 transitions. [2023-12-22 09:07:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 09:07:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 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 358 [2023-12-22 09:07:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:07:18,993 INFO L225 Difference]: With dead ends: 9896 [2023-12-22 09:07:18,993 INFO L226 Difference]: Without dead ends: 5702 [2023-12-22 09:07:18,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-22 09:07:18,997 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 101 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.1s IncrementalHoareTripleChecker+Time [2023-12-22 09:07:18,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 25 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 51.1s Time] [2023-12-22 09:07:19,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2023-12-22 09:07:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 5563. [2023-12-22 09:07:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 1.133225458468177) internal successors, (6303), 5562 states have internal predecessors, (6303), 0 states have call successors, (0), 0 states 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 09:07:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 6303 transitions. [2023-12-22 09:07:19,052 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 6303 transitions. Word has length 358 [2023-12-22 09:07:19,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:07:19,053 INFO L495 AbstractCegarLoop]: Abstraction has 5563 states and 6303 transitions. [2023-12-22 09:07:19,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states 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 09:07:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 6303 transitions. [2023-12-22 09:07:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-12-22 09:07:19,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:07:19,061 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-22 09:07:19,064 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 09:07:19,264 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 09:07:19,265 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:07:19,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:07:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1769582746, now seen corresponding path program 1 times [2023-12-22 09:07:19,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:07:19,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311281226] [2023-12-22 09:07:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:07:19,267 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 09:07:19,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:07:19,269 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 09:07:19,294 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 (15)] Waiting until timeout for monitored process [2023-12-22 09:07:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:07:19,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 09:07:19,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:07:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 395 proven. 283 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-22 09:07:20,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:07:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 594 proven. 84 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-22 09:07:25,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:07:25,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311281226] [2023-12-22 09:07:25,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311281226] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:07:25,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:07:25,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 09:07:25,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709016689] [2023-12-22 09:07:25,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:07:25,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 09:07:25,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:07:25,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 09:07:25,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-22 09:07:25,687 INFO L87 Difference]: Start difference. First operand 5563 states and 6303 transitions. Second operand has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 09:07:34,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:08:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:08:23,595 INFO L93 Difference]: Finished difference Result 10847 states and 12327 transitions. [2023-12-22 09:08:23,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 09:08:23,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 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 493 [2023-12-22 09:08:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:08:23,618 INFO L225 Difference]: With dead ends: 10847 [2023-12-22 09:08:23,618 INFO L226 Difference]: Without dead ends: 5980 [2023-12-22 09:08:23,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 980 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-22 09:08:23,623 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 279 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.6s IncrementalHoareTripleChecker+Time [2023-12-22 09:08:23,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 47 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 57.6s Time] [2023-12-22 09:08:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2023-12-22 09:08:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 5702. [2023-12-22 09:08:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 5701 states have (on average 1.1262936326960182) internal successors, (6421), 5701 states have internal predecessors, (6421), 0 states have call successors, (0), 0 states 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 09:08:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 6421 transitions. [2023-12-22 09:08:23,687 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 6421 transitions. Word has length 493 [2023-12-22 09:08:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:08:23,688 INFO L495 AbstractCegarLoop]: Abstraction has 5702 states and 6421 transitions. [2023-12-22 09:08:23,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 09:08:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 6421 transitions. [2023-12-22 09:08:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-22 09:08:23,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:08:23,695 INFO L195 NwaCegarLoop]: trace histogram [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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:08:23,702 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 09:08:23,900 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 09:08:23,900 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:08:23,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:08:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash -873233534, now seen corresponding path program 1 times [2023-12-22 09:08:23,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:08:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677342782] [2023-12-22 09:08:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:08:23,903 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 09:08:23,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:08:23,904 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 09:08:23,905 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 09:08:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:08:24,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 09:08:24,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:08:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 110 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 09:08:31,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:09:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 686 proven. 271 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-22 09:09:23,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:09:23,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677342782] [2023-12-22 09:09:23,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677342782] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:09:23,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:09:23,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-12-22 09:09:23,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590215050] [2023-12-22 09:09:23,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:09:23,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-22 09:09:23,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:09:23,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-22 09:09:23,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-12-22 09:09:23,119 INFO L87 Difference]: Start difference. First operand 5702 states and 6421 transitions. Second operand has 20 states, 20 states have (on average 50.55) internal successors, (1011), 20 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states 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 09:09:44,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:09:53,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:09:59,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:10:15,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:10:16,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:10:25,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:10:41,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:10:50,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:11:14,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:11:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:11:20,078 INFO L93 Difference]: Finished difference Result 12565 states and 14131 transitions. [2023-12-22 09:11:20,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-22 09:11:20,085 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 50.55) internal successors, (1011), 20 states have internal predecessors, (1011), 0 states have call successors, (0), 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 568 [2023-12-22 09:11:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:11:20,095 INFO L225 Difference]: With dead ends: 12565 [2023-12-22 09:11:20,096 INFO L226 Difference]: Without dead ends: 7837 [2023-12-22 09:11:20,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1163 GetRequests, 1124 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=425, Invalid=1215, Unknown=0, NotChecked=0, Total=1640 [2023-12-22 09:11:20,102 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 388 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 6507 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 6769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 6507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.2s IncrementalHoareTripleChecker+Time [2023-12-22 09:11:20,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 166 Invalid, 6769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [262 Valid, 6507 Invalid, 0 Unknown, 0 Unchecked, 103.2s Time] [2023-12-22 09:11:20,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7837 states. [2023-12-22 09:11:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7837 to 5826. [2023-12-22 09:11:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5825 states have (on average 1.11931330472103) internal successors, (6520), 5825 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states 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 09:11:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 6520 transitions. [2023-12-22 09:11:20,196 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 6520 transitions. Word has length 568 [2023-12-22 09:11:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:11:20,197 INFO L495 AbstractCegarLoop]: Abstraction has 5826 states and 6520 transitions. [2023-12-22 09:11:20,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 50.55) internal successors, (1011), 20 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states 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 09:11:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 6520 transitions. [2023-12-22 09:11:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2023-12-22 09:11:20,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:11:20,205 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:11:20,214 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 09:11:20,414 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 09:11:20,415 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:11:20,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:11:20,415 INFO L85 PathProgramCache]: Analyzing trace with hash 806479085, now seen corresponding path program 1 times [2023-12-22 09:11:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:11:20,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782167675] [2023-12-22 09:11:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:11:20,417 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 09:11:20,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:11:20,418 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 09:11:20,420 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 09:11:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:11:20,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 09:11:20,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:11:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 846 proven. 311 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-12-22 09:11:21,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:11:22,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-12-22 09:11:22,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:11:22,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782167675] [2023-12-22 09:11:22,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782167675] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 09:11:22,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 09:11:22,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-22 09:11:22,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768850361] [2023-12-22 09:11:22,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 09:11:22,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 09:11:22,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:11:22,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 09:11:22,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-22 09:11:22,114 INFO L87 Difference]: Start difference. First operand 5826 states and 6520 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:11:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:11:24,498 INFO L93 Difference]: Finished difference Result 10275 states and 11566 transitions. [2023-12-22 09:11:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 09:11:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 644 [2023-12-22 09:11:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:11:24,529 INFO L225 Difference]: With dead ends: 10275 [2023-12-22 09:11:24,529 INFO L226 Difference]: Without dead ends: 5687 [2023-12-22 09:11:24,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-22 09:11:24,558 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 09:11:24,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 09:11:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2023-12-22 09:11:24,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5687. [2023-12-22 09:11:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5687 states, 5686 states have (on average 1.118888498065424) internal successors, (6362), 5686 states have internal predecessors, (6362), 0 states have call successors, (0), 0 states 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 09:11:24,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5687 states to 5687 states and 6362 transitions. [2023-12-22 09:11:24,614 INFO L78 Accepts]: Start accepts. Automaton has 5687 states and 6362 transitions. Word has length 644 [2023-12-22 09:11:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:11:24,614 INFO L495 AbstractCegarLoop]: Abstraction has 5687 states and 6362 transitions. [2023-12-22 09:11:24,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:11:24,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5687 states and 6362 transitions. [2023-12-22 09:11:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2023-12-22 09:11:24,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:11:24,622 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:11:24,630 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 09:11:24,830 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 09:11:24,830 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:11:24,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:11:24,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1380314904, now seen corresponding path program 1 times [2023-12-22 09:11:24,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:11:24,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827349090] [2023-12-22 09:11:24,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:11:24,833 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 09:11:24,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:11:24,834 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 09:11:24,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 09:11:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:11:25,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 09:11:25,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:11:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1712 backedges. 146 proven. 1431 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-12-22 09:11:26,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:11:31,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1712 backedges. 922 proven. 575 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-12-22 09:11:31,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:11:31,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827349090] [2023-12-22 09:11:31,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827349090] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:11:31,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:11:31,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-12-22 09:11:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340017034] [2023-12-22 09:11:31,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:11:31,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 09:11:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:11:31,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 09:11:31,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-22 09:11:31,498 INFO L87 Difference]: Start difference. First operand 5687 states and 6362 transitions. Second operand has 10 states, 10 states have (on average 93.3) internal successors, (933), 10 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 09:11:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 09:11:32,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1300 GetRequests, 1291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-22 09:11:32,272 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 09:11:32,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 09:11:32,273 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 09:11:32,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-22 09:11:32,290 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 09:11:32,293 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 09:11:32,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 09:11:32,475 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (5687states) and FLOYD_HOARE automaton (currently 4 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (76 states constructed, input type IntersectNwa). [2023-12-22 09:11:32,478 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:11:32,480 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 09:11:32,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 09:11:32 BoogieIcfgContainer [2023-12-22 09:11:32,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 09:11:32,481 INFO L158 Benchmark]: Toolchain (without parser) took 879892.36ms. Allocated memory was 170.9MB in the beginning and 336.6MB in the end (delta: 165.7MB). Free memory was 110.2MB in the beginning and 258.8MB in the end (delta: -148.6MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2023-12-22 09:11:32,481 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 170.9MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 09:11:32,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.83ms. Allocated memory is still 170.9MB. Free memory was 109.8MB in the beginning and 78.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-22 09:11:32,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.15ms. Allocated memory is still 170.9MB. Free memory was 78.3MB in the beginning and 72.9MB in the end (delta: 5.4MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-22 09:11:32,482 INFO L158 Benchmark]: Boogie Preprocessor took 73.17ms. Allocated memory is still 170.9MB. Free memory was 72.9MB in the beginning and 67.2MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 09:11:32,482 INFO L158 Benchmark]: RCFGBuilder took 2476.61ms. Allocated memory was 170.9MB in the beginning and 280.0MB in the end (delta: 109.1MB). Free memory was 66.8MB in the beginning and 152.1MB in the end (delta: -85.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-22 09:11:32,482 INFO L158 Benchmark]: TraceAbstraction took 876808.68ms. Allocated memory was 280.0MB in the beginning and 336.6MB in the end (delta: 56.6MB). Free memory was 151.5MB in the beginning and 258.8MB in the end (delta: -107.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 09:11:32,483 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 170.9MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 450.83ms. Allocated memory is still 170.9MB. Free memory was 109.8MB in the beginning and 78.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.15ms. Allocated memory is still 170.9MB. Free memory was 78.3MB in the beginning and 72.9MB in the end (delta: 5.4MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.17ms. Allocated memory is still 170.9MB. Free memory was 72.9MB in the beginning and 67.2MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2476.61ms. Allocated memory was 170.9MB in the beginning and 280.0MB in the end (delta: 109.1MB). Free memory was 66.8MB in the beginning and 152.1MB in the end (delta: -85.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 876808.68ms. Allocated memory was 280.0MB in the beginning and 336.6MB in the end (delta: 56.6MB). Free memory was 151.5MB in the beginning and 258.8MB in the end (delta: -107.3MB). There was no memory consumed. 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: 83]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 83). Cancelled while NwaCegarLoop was constructing difference of abstraction (5687states) and FLOYD_HOARE automaton (currently 4 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (76 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 876.8s, OverallIterations: 17, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 755.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5366 SdHoareTripleChecker+Valid, 733.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5366 mSDsluCounter, 1784 SdHoareTripleChecker+Invalid, 678.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 410 mSDsCounter, 3456 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23092 IncrementalHoareTripleChecker+Invalid, 26548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3456 mSolverCounterUnsat, 1374 mSDtfsCounter, 23092 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9343 GetRequests, 9215 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5826occurred in iteration=15, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 8216 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 114.4s InterpolantComputationTime, 5114 NumberOfCodeBlocks, 5114 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 9281 ConstructedInterpolants, 0 QuantifiedInterpolants, 59041 SizeOfPredicates, 37 NumberOfNonLiveVariables, 6068 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 7887/13232 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