/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/Problem12_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 10:31:46,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 10:31:46,448 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 10:31:46,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 10:31:46,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 10:31:46,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 10:31:46,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 10:31:46,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 10:31:46,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 10:31:46,488 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 10:31:46,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 10:31:46,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 10:31:46,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 10:31:46,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 10:31:46,491 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 10:31:46,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 10:31:46,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 10:31:46,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 10:31:46,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 10:31:46,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 10:31:46,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 10:31:46,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 10:31:46,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 10:31:46,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 10:31:46,494 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 10:31:46,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 10:31:46,494 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 10:31:46,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 10:31:46,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 10:31:46,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 10:31:46,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 10:31:46,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 10:31:46,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 10:31:46,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 10:31:46,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:31:46,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 10:31:46,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 10:31:46,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 10:31:46,497 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 10:31:46,497 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 10:31:46,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 10:31:46,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 10:31:46,498 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 10:31:46,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 10:31:46,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 10:31:46,499 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 10:31:46,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 10:31:46,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 10:31:46,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 10:31:46,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 10:31:46,756 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 10:31:46,758 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 10:31:46,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label37.c [2023-12-22 10:31:48,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 10:31:48,437 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 10:31:48,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label37.c [2023-12-22 10:31:48,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e13224d1/3626199e7cc748cc993c06dee597cbbc/FLAG6b24d8b82 [2023-12-22 10:31:48,486 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e13224d1/3626199e7cc748cc993c06dee597cbbc [2023-12-22 10:31:48,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 10:31:48,489 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 10:31:48,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 10:31:48,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 10:31:48,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 10:31:48,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:31:48" (1/1) ... [2023-12-22 10:31:48,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c80bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:48, skipping insertion in model container [2023-12-22 10:31:48,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:31:48" (1/1) ... [2023-12-22 10:31:48,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 10:31:48,849 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/Problem12_label37.c[2005,2018] [2023-12-22 10:31:49,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 10:31:49,681 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 10:31:49,700 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/Problem12_label37.c[2005,2018] [2023-12-22 10:31:50,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 10:31:50,148 INFO L206 MainTranslator]: Completed translation [2023-12-22 10:31:50,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50 WrapperNode [2023-12-22 10:31:50,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 10:31:50,150 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 10:31:50,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 10:31:50,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 10:31:50,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,360 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4756 [2023-12-22 10:31:50,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 10:31:50,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 10:31:50,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 10:31:50,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 10:31:50,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,478 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 10:31:50,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 10:31:50,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 10:31:50,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 10:31:50,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 10:31:50,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (1/1) ... [2023-12-22 10:31:50,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:31:50,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 10:31:50,776 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 10:31:50,788 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 10:31:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 10:31:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 10:31:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 10:31:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 10:31:50,869 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 10:31:50,871 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 10:32:15,868 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 10:32:15,944 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 10:32:15,944 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 10:32:15,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:32:15 BoogieIcfgContainer [2023-12-22 10:32:15,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 10:32:15,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 10:32:15,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 10:32:15,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 10:32:15,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:31:48" (1/3) ... [2023-12-22 10:32:15,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70129f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:32:15, skipping insertion in model container [2023-12-22 10:32:15,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:50" (2/3) ... [2023-12-22 10:32:15,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70129f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:32:15, skipping insertion in model container [2023-12-22 10:32:15,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:32:15" (3/3) ... [2023-12-22 10:32:15,953 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label37.c [2023-12-22 10:32:15,967 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 10:32:15,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 10:32:16,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 10:32:16,051 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;@5f4586bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 10:32:16,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 10:32:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states 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 10:32:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-22 10:32:16,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:32:16,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:32:16,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:32:16,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:32:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash -105395122, now seen corresponding path program 1 times [2023-12-22 10:32:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:32:16,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632663181] [2023-12-22 10:32:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:32:16,079 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 10:32:16,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:32:16,086 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 10:32:16,120 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 10:32:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:32:16,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 10:32:16,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:32:16,186 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 10:32:16,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:32:16,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:32:16,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632663181] [2023-12-22 10:32:16,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632663181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:32:16,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:32:16,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:32:16,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196463271] [2023-12-22 10:32:16,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:32:16,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 10:32:16,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:32:16,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 10:32:16,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 10:32:16,224 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states 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 10:32:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:32:16,354 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-22 10:32:16,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 10:32:16,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-12-22 10:32:16,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:32:16,377 INFO L225 Difference]: With dead ends: 1511 [2023-12-22 10:32:16,377 INFO L226 Difference]: Without dead ends: 754 [2023-12-22 10:32:16,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 10:32:16,389 INFO L413 NwaCegarLoop]: 1438 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, 1438 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 10:32:16,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 10:32:16,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-22 10:32:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-22 10:32:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states 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 10:32:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-22 10:32:16,466 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 12 [2023-12-22 10:32:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:32:16,466 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-22 10:32:16,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states 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 10:32:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-22 10:32:16,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-22 10:32:16,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:32:16,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:32:16,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 10:32:16,670 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 10:32:16,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:32:16,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:32:16,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1143423914, now seen corresponding path program 1 times [2023-12-22 10:32:16,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:32:16,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312492843] [2023-12-22 10:32:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:32:16,676 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 10:32:16,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:32:16,678 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 10:32:16,681 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 10:32:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:32:16,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:32:16,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:32:16,750 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 10:32:16,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:32:16,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:32:16,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312492843] [2023-12-22 10:32:16,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312492843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:32:16,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:32:16,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:32:16,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868436604] [2023-12-22 10:32:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:32:16,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:32:16,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:32:16,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:32:16,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:32:16,754 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states 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 10:32:45,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:32:45,531 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2023-12-22 10:32:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:32:45,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2023-12-22 10:32:45,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:32:45,538 INFO L225 Difference]: With dead ends: 2258 [2023-12-22 10:32:45,538 INFO L226 Difference]: Without dead ends: 1505 [2023-12-22 10:32:45,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 10:32:45,540 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 766 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 2977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2023-12-22 10:32:45,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 222 Invalid, 2977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 28.6s Time] [2023-12-22 10:32:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-22 10:32:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-12-22 10:32:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.7746010638297873) internal successors, (2669), 1504 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states 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 10:32:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2669 transitions. [2023-12-22 10:32:45,567 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2669 transitions. Word has length 12 [2023-12-22 10:32:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:32:45,568 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2669 transitions. [2023-12-22 10:32:45,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states 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 10:32:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2669 transitions. [2023-12-22 10:32:45,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-22 10:32:45,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:32:45,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:32:45,575 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 10:32:45,772 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 10:32:45,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:32:45,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:32:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2076115915, now seen corresponding path program 1 times [2023-12-22 10:32:45,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:32:45,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745094097] [2023-12-22 10:32:45,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:32:45,774 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 10:32:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:32:45,776 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 10:32:45,786 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 10:32:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:32:45,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:32:45,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:32:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:32:45,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:32:45,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:32:45,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745094097] [2023-12-22 10:32:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745094097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:32:45,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:32:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:32:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833218798] [2023-12-22 10:32:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:32:45,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:32:45,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:32:45,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:32:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:32:45,983 INFO L87 Difference]: Start difference. First operand 1505 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 10:33:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:33:16,079 INFO L93 Difference]: Finished difference Result 4513 states and 8005 transitions. [2023-12-22 10:33:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:33:16,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-22 10:33:16,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:33:16,101 INFO L225 Difference]: With dead ends: 4513 [2023-12-22 10:33:16,101 INFO L226 Difference]: Without dead ends: 3009 [2023-12-22 10:33:16,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 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 10:33:16,103 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 926 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-12-22 10:33:16,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 352 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time] [2023-12-22 10:33:16,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2023-12-22 10:33:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 3007. [2023-12-22 10:33:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.5834996673320028) internal successors, (4760), 3006 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states 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 10:33:16,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4760 transitions. [2023-12-22 10:33:16,150 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4760 transitions. Word has length 77 [2023-12-22 10:33:16,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:33:16,151 INFO L495 AbstractCegarLoop]: Abstraction has 3007 states and 4760 transitions. [2023-12-22 10:33:16,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 10:33:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4760 transitions. [2023-12-22 10:33:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-22 10:33:16,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:33:16,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:33:16,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 10:33:16,358 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 10:33:16,358 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:33:16,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:33:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash -987689990, now seen corresponding path program 1 times [2023-12-22 10:33:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:33:16,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510262821] [2023-12-22 10:33:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:33:16,360 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 10:33:16,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:33:16,361 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 10:33:16,363 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 10:33:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:33:16,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:33:16,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:33:16,433 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:33:16,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:33:16,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:33:16,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510262821] [2023-12-22 10:33:16,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510262821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:33:16,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:33:16,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:33:16,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644113229] [2023-12-22 10:33:16,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:33:16,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:33:16,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:33:16,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:33:16,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:33:16,435 INFO L87 Difference]: Start difference. First operand 3007 states and 4760 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 10:33:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:33:45,755 INFO L93 Difference]: Finished difference Result 9017 states and 14277 transitions. [2023-12-22 10:33:45,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:33:45,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-22 10:33:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:33:45,780 INFO L225 Difference]: With dead ends: 9017 [2023-12-22 10:33:45,780 INFO L226 Difference]: Without dead ends: 4509 [2023-12-22 10:33:45,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 10:33:45,784 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 794 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-22 10:33:45,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1351 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-12-22 10:33:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2023-12-22 10:33:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4509. [2023-12-22 10:33:45,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4509 states, 4508 states have (on average 1.3890860692102929) internal successors, (6262), 4508 states have internal predecessors, (6262), 0 states have call successors, (0), 0 states 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 10:33:45,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4509 states to 4509 states and 6262 transitions. [2023-12-22 10:33:45,844 INFO L78 Accepts]: Start accepts. Automaton has 4509 states and 6262 transitions. Word has length 83 [2023-12-22 10:33:45,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:33:45,845 INFO L495 AbstractCegarLoop]: Abstraction has 4509 states and 6262 transitions. [2023-12-22 10:33:45,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 10:33:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand 4509 states and 6262 transitions. [2023-12-22 10:33:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 10:33:45,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:33:45,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:33:45,852 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 (5)] Forceful destruction successful, exit code 0 [2023-12-22 10:33:46,049 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 10:33:46,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:33:46,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:33:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1680921108, now seen corresponding path program 1 times [2023-12-22 10:33:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:33:46,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303622544] [2023-12-22 10:33:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:33:46,052 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 10:33:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:33:46,054 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 10:33:46,055 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 10:33:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:33:46,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 10:33:46,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:33:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:33:47,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:33:47,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:33:47,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303622544] [2023-12-22 10:33:47,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303622544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:33:47,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:33:47,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:33:47,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421155286] [2023-12-22 10:33:47,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:33:47,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 10:33:47,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:33:47,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 10:33:47,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 10:33:47,122 INFO L87 Difference]: Start difference. First operand 4509 states and 6262 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 10:34:16,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:34:16,539 INFO L93 Difference]: Finished difference Result 9784 states and 13463 transitions. [2023-12-22 10:34:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 10:34:16,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-22 10:34:16,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:34:16,569 INFO L225 Difference]: With dead ends: 9784 [2023-12-22 10:34:16,569 INFO L226 Difference]: Without dead ends: 5276 [2023-12-22 10:34:16,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:34:16,576 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 1344 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3192 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 3192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-22 10:34:16,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 703 Invalid, 3787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 3192 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-12-22 10:34:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2023-12-22 10:34:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 5260. [2023-12-22 10:34:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 5259 states have (on average 1.3344742346453697) internal successors, (7018), 5259 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states 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 10:34:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 7018 transitions. [2023-12-22 10:34:16,687 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 7018 transitions. Word has length 103 [2023-12-22 10:34:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:34:16,687 INFO L495 AbstractCegarLoop]: Abstraction has 5260 states and 7018 transitions. [2023-12-22 10:34:16,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 10:34:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 7018 transitions. [2023-12-22 10:34:16,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-22 10:34:16,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:34:16,700 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:16,709 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 10:34:16,903 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 10:34:16,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:34:16,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:34:16,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1423621321, now seen corresponding path program 1 times [2023-12-22 10:34:16,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:34:16,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023415122] [2023-12-22 10:34:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:34:16,906 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 10:34:16,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:34:16,907 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 10:34:16,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 10:34:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:34:17,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:34:17,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:34:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:34:17,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:34:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:34:17,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:34:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023415122] [2023-12-22 10:34:17,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023415122] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:34:17,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:34:17,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:34:17,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238219375] [2023-12-22 10:34:17,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:34:17,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:34:17,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:34:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:34:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:34:17,543 INFO L87 Difference]: Start difference. First operand 5260 states and 7018 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 10:36:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:36:09,991 INFO L93 Difference]: Finished difference Result 14274 states and 19539 transitions. [2023-12-22 10:36:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:36:09,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2023-12-22 10:36:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:36:10,019 INFO L225 Difference]: With dead ends: 14274 [2023-12-22 10:36:10,020 INFO L226 Difference]: Without dead ends: 9766 [2023-12-22 10:36:10,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:36:10,026 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 819 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 3141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.3s IncrementalHoareTripleChecker+Time [2023-12-22 10:36:10,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 865 Invalid, 3141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 112.3s Time] [2023-12-22 10:36:10,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2023-12-22 10:36:10,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9766. [2023-12-22 10:36:10,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.3358934971838197) internal successors, (13045), 9765 states have internal predecessors, (13045), 0 states have call successors, (0), 0 states 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 10:36:10,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 13045 transitions. [2023-12-22 10:36:10,194 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 13045 transitions. Word has length 153 [2023-12-22 10:36:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:36:10,195 INFO L495 AbstractCegarLoop]: Abstraction has 9766 states and 13045 transitions. [2023-12-22 10:36:10,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 10:36:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 13045 transitions. [2023-12-22 10:36:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-12-22 10:36:10,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:36:10,201 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:36:10,212 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 10:36:10,405 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 10:36:10,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:36:10,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:36:10,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1531019775, now seen corresponding path program 1 times [2023-12-22 10:36:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:36:10,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412808168] [2023-12-22 10:36:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:36:10,407 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 10:36:10,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:36:10,408 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 10:36:10,410 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 10:36:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:36:10,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:36:10,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:36:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-22 10:36:10,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:36:10,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:36:10,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412808168] [2023-12-22 10:36:10,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412808168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:36:10,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:36:10,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:36:10,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446341742] [2023-12-22 10:36:10,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:36:10,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:36:10,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:36:10,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:36:10,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:36:10,597 INFO L87 Difference]: Start difference. First operand 9766 states and 13045 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 10:36:51,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:36:51,596 INFO L93 Difference]: Finished difference Result 24788 states and 34298 transitions. [2023-12-22 10:36:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:36:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 252 [2023-12-22 10:36:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:36:51,641 INFO L225 Difference]: With dead ends: 24788 [2023-12-22 10:36:51,642 INFO L226 Difference]: Without dead ends: 15774 [2023-12-22 10:36:51,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 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 10:36:51,652 INFO L413 NwaCegarLoop]: 1345 mSDtfsCounter, 748 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2023-12-22 10:36:51,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1352 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 40.7s Time] [2023-12-22 10:36:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15774 states. [2023-12-22 10:36:51,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15774 to 15774. [2023-12-22 10:36:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15774 states, 15773 states have (on average 1.2643758321181766) internal successors, (19943), 15773 states have internal predecessors, (19943), 0 states have call successors, (0), 0 states 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 10:36:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15774 states to 15774 states and 19943 transitions. [2023-12-22 10:36:51,884 INFO L78 Accepts]: Start accepts. Automaton has 15774 states and 19943 transitions. Word has length 252 [2023-12-22 10:36:51,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:36:51,884 INFO L495 AbstractCegarLoop]: Abstraction has 15774 states and 19943 transitions. [2023-12-22 10:36:51,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 10:36:51,885 INFO L276 IsEmpty]: Start isEmpty. Operand 15774 states and 19943 transitions. [2023-12-22 10:36:51,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-22 10:36:51,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:36:51,888 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 10:36:51,897 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 10:36:52,094 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 10:36:52,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:36:52,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:36:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash 580978766, now seen corresponding path program 1 times [2023-12-22 10:36:52,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:36:52,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550893787] [2023-12-22 10:36:52,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:36:52,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:36:52,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:36:52,099 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 10:36:52,124 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 10:36:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:36:52,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:36:52,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:36:52,764 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 21 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:36:52,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:36:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:36:53,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:36:53,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550893787] [2023-12-22 10:36:53,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550893787] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:36:53,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:36:53,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:36:53,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267856406] [2023-12-22 10:36:53,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:36:53,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:36:53,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:36:53,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:36:53,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:36:53,208 INFO L87 Difference]: Start difference. First operand 15774 states and 19943 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 10:37:53,903 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 10:38:41,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:38:41,172 INFO L93 Difference]: Finished difference Result 44314 states and 56626 transitions. [2023-12-22 10:38:41,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:38:41,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 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 10:38:41,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:38:41,229 INFO L225 Difference]: With dead ends: 44314 [2023-12-22 10:38:41,229 INFO L226 Difference]: Without dead ends: 29292 [2023-12-22 10:38:41,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:38:41,249 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 706 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2287 mSolverCounterSat, 782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 3069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 782 IncrementalHoareTripleChecker+Valid, 2287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.7s IncrementalHoareTripleChecker+Time [2023-12-22 10:38:41,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 439 Invalid, 3069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [782 Valid, 2287 Invalid, 0 Unknown, 0 Unchecked, 107.7s Time] [2023-12-22 10:38:41,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29292 states. [2023-12-22 10:38:41,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29292 to 29292. [2023-12-22 10:38:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29292 states, 29291 states have (on average 1.2514424225871428) internal successors, (36656), 29291 states have internal predecessors, (36656), 0 states have call successors, (0), 0 states 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 10:38:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29292 states to 29292 states and 36656 transitions. [2023-12-22 10:38:41,690 INFO L78 Accepts]: Start accepts. Automaton has 29292 states and 36656 transitions. Word has length 270 [2023-12-22 10:38:41,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:38:41,690 INFO L495 AbstractCegarLoop]: Abstraction has 29292 states and 36656 transitions. [2023-12-22 10:38:41,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 10:38:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 29292 states and 36656 transitions. [2023-12-22 10:38:41,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-22 10:38:41,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:38:41,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:38:41,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 10:38:41,902 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 10:38:41,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:38:41,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:38:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1899777084, now seen corresponding path program 1 times [2023-12-22 10:38:41,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:38:41,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858455607] [2023-12-22 10:38:41,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:38:41,904 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 10:38:41,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:38:41,905 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 10:38:41,906 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 10:38:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:38:42,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:38:42,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:38:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-22 10:38:42,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:38:42,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:38:42,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858455607] [2023-12-22 10:38:42,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858455607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:38:42,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:38:42,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:38:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443291840] [2023-12-22 10:38:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:38:42,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:38:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:38:42,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:38:42,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:38:42,051 INFO L87 Difference]: Start difference. First operand 29292 states and 36656 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 10:39:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:39:23,131 INFO L93 Difference]: Finished difference Result 69097 states and 89003 transitions. [2023-12-22 10:39:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:39:23,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 274 [2023-12-22 10:39:23,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:39:23,203 INFO L225 Difference]: With dead ends: 69097 [2023-12-22 10:39:23,203 INFO L226 Difference]: Without dead ends: 40557 [2023-12-22 10:39:23,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 272 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 10:39:23,231 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 742 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2023-12-22 10:39:23,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1423 Invalid, 2957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 40.7s Time] [2023-12-22 10:39:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40557 states. [2023-12-22 10:39:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40557 to 40557. [2023-12-22 10:39:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40557 states, 40556 states have (on average 1.208551139165598) internal successors, (49014), 40556 states have internal predecessors, (49014), 0 states have call successors, (0), 0 states 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 10:39:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40557 states to 40557 states and 49014 transitions. [2023-12-22 10:39:23,792 INFO L78 Accepts]: Start accepts. Automaton has 40557 states and 49014 transitions. Word has length 274 [2023-12-22 10:39:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:39:23,792 INFO L495 AbstractCegarLoop]: Abstraction has 40557 states and 49014 transitions. [2023-12-22 10:39:23,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 10:39:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand 40557 states and 49014 transitions. [2023-12-22 10:39:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-12-22 10:39:23,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:39:23,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:39:23,806 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 (10)] Ended with exit code 0 [2023-12-22 10:39:24,006 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 10:39:24,006 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:39:24,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:39:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1607411860, now seen corresponding path program 1 times [2023-12-22 10:39:24,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:39:24,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420232897] [2023-12-22 10:39:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:39:24,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:39:24,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:39:24,010 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 10:39:24,011 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 10:39:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:39:24,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:39:24,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:39:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-22 10:39:24,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:39:24,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:39:24,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420232897] [2023-12-22 10:39:24,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420232897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:39:24,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:39:24,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:39:24,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557335414] [2023-12-22 10:39:24,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:39:24,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:39:24,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:39:24,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:39:24,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:39:24,869 INFO L87 Difference]: Start difference. First operand 40557 states and 49014 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 10:40:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:40:01,344 INFO L93 Difference]: Finished difference Result 110402 states and 134070 transitions. [2023-12-22 10:40:01,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:40:01,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 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 345 [2023-12-22 10:40:01,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:40:01,457 INFO L225 Difference]: With dead ends: 110402 [2023-12-22 10:40:01,457 INFO L226 Difference]: Without dead ends: 70597 [2023-12-22 10:40:01,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 343 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 10:40:01,491 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 613 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:40:01,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 475 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2023-12-22 10:40:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70597 states. [2023-12-22 10:40:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70597 to 68344. [2023-12-22 10:40:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68344 states, 68343 states have (on average 1.1601188124606763) internal successors, (79286), 68343 states have internal predecessors, (79286), 0 states have call successors, (0), 0 states 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 10:40:02,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68344 states to 68344 states and 79286 transitions. [2023-12-22 10:40:02,744 INFO L78 Accepts]: Start accepts. Automaton has 68344 states and 79286 transitions. Word has length 345 [2023-12-22 10:40:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:40:02,745 INFO L495 AbstractCegarLoop]: Abstraction has 68344 states and 79286 transitions. [2023-12-22 10:40:02,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 10:40:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 68344 states and 79286 transitions. [2023-12-22 10:40:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-22 10:40:02,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:40:02,754 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:02,780 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 10:40:02,959 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 10:40:02,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:40:02,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:40:02,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2002387477, now seen corresponding path program 1 times [2023-12-22 10:40:02,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:40:02,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676611895] [2023-12-22 10:40:02,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:40:02,963 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 10:40:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:40:02,966 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 10:40:02,969 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 10:40:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:40:03,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:40:03,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:40:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-22 10:40:03,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:40:03,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:40:03,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676611895] [2023-12-22 10:40:03,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676611895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:40:03,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:40:03,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:40:03,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149080909] [2023-12-22 10:40:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:40:03,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:40:03,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:40:03,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:40:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:40:03,898 INFO L87 Difference]: Start difference. First operand 68344 states and 79286 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 10:40:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:40:41,986 INFO L93 Difference]: Finished difference Result 149454 states and 176578 transitions. [2023-12-22 10:40:41,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:40:41,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 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 369 [2023-12-22 10:40:41,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:40:42,194 INFO L225 Difference]: With dead ends: 149454 [2023-12-22 10:40:42,194 INFO L226 Difference]: Without dead ends: 81862 [2023-12-22 10:40:42,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 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 10:40:42,297 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 646 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2023-12-22 10:40:42,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 553 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 37.4s Time] [2023-12-22 10:40:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81862 states. [2023-12-22 10:40:43,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81862 to 81111. [2023-12-22 10:40:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81111 states, 81110 states have (on average 1.144223893477993) internal successors, (92808), 81110 states have internal predecessors, (92808), 0 states have call successors, (0), 0 states 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 10:40:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81111 states to 81111 states and 92808 transitions. [2023-12-22 10:40:43,681 INFO L78 Accepts]: Start accepts. Automaton has 81111 states and 92808 transitions. Word has length 369 [2023-12-22 10:40:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:40:43,681 INFO L495 AbstractCegarLoop]: Abstraction has 81111 states and 92808 transitions. [2023-12-22 10:40:43,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 10:40:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 81111 states and 92808 transitions. [2023-12-22 10:40:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-22 10:40:43,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:40:43,713 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:43,735 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 10:40:43,913 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 10:40:43,915 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:40:43,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:40:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1374086199, now seen corresponding path program 1 times [2023-12-22 10:40:44,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:40:44,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673119446] [2023-12-22 10:40:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:40:44,013 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 10:40:44,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:40:44,014 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 10:40:44,016 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 10:40:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:40:44,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:40:44,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:40:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 240 proven. 78 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 10:40:44,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:40:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 10:40:45,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:40:45,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673119446] [2023-12-22 10:40:45,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673119446] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:40:45,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:40:45,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:40:45,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252321511] [2023-12-22 10:40:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:40:45,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:40:45,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:40:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:40:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:40:45,201 INFO L87 Difference]: Start difference. First operand 81111 states and 92808 transitions. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 10:41:41,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:41:48,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:42:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:42:00,381 INFO L93 Difference]: Finished difference Result 186253 states and 213350 transitions. [2023-12-22 10:42:00,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:42:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 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 426 [2023-12-22 10:42:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:42:00,527 INFO L225 Difference]: With dead ends: 186253 [2023-12-22 10:42:00,527 INFO L226 Difference]: Without dead ends: 105894 [2023-12-22 10:42:00,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:42:00,567 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 717 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 2889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.5s IncrementalHoareTripleChecker+Time [2023-12-22 10:42:00,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 569 Invalid, 2889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 74.5s Time] [2023-12-22 10:42:00,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105894 states. [2023-12-22 10:42:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105894 to 104392. [2023-12-22 10:42:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104392 states, 104391 states have (on average 1.1316397007404853) internal successors, (118133), 104391 states have internal predecessors, (118133), 0 states have call successors, (0), 0 states 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 10:42:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104392 states to 104392 states and 118133 transitions. [2023-12-22 10:42:02,557 INFO L78 Accepts]: Start accepts. Automaton has 104392 states and 118133 transitions. Word has length 426 [2023-12-22 10:42:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:42:02,558 INFO L495 AbstractCegarLoop]: Abstraction has 104392 states and 118133 transitions. [2023-12-22 10:42:02,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 10:42:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 104392 states and 118133 transitions. [2023-12-22 10:42:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-12-22 10:42:02,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:42:02,581 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1] [2023-12-22 10:42:02,594 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 10:42:02,781 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 10:42:02,782 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:42:02,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:42:02,782 INFO L85 PathProgramCache]: Analyzing trace with hash 60883629, now seen corresponding path program 1 times [2023-12-22 10:42:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:42:02,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299483151] [2023-12-22 10:42:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:42:02,785 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 10:42:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:42:02,786 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 10:42:02,789 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 10:42:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:42:03,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:42:03,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:42:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-22 10:42:03,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:42:03,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:42:03,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299483151] [2023-12-22 10:42:03,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299483151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:42:03,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:42:03,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:42:03,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316185749] [2023-12-22 10:42:03,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:42:03,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:42:03,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:42:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:42:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:42:03,433 INFO L87 Difference]: Start difference. First operand 104392 states and 118133 transitions. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 10:42:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:42:49,957 INFO L93 Difference]: Finished difference Result 250839 states and 286119 transitions. [2023-12-22 10:42:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:42:49,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 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 430 [2023-12-22 10:42:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:42:50,278 INFO L225 Difference]: With dead ends: 250839 [2023-12-22 10:42:50,278 INFO L226 Difference]: Without dead ends: 147199 [2023-12-22 10:42:50,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 428 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 10:42:50,503 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 699 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.5s IncrementalHoareTripleChecker+Time [2023-12-22 10:42:50,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1241 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 45.5s Time] [2023-12-22 10:42:50,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147199 states. [2023-12-22 10:42:52,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147199 to 146448. [2023-12-22 10:42:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146448 states, 146447 states have (on average 1.12882476254208) internal successors, (165313), 146447 states have internal predecessors, (165313), 0 states have call successors, (0), 0 states 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 10:42:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146448 states to 146448 states and 165313 transitions. [2023-12-22 10:42:53,068 INFO L78 Accepts]: Start accepts. Automaton has 146448 states and 165313 transitions. Word has length 430 [2023-12-22 10:42:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:42:53,069 INFO L495 AbstractCegarLoop]: Abstraction has 146448 states and 165313 transitions. [2023-12-22 10:42:53,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 10:42:53,069 INFO L276 IsEmpty]: Start isEmpty. Operand 146448 states and 165313 transitions. [2023-12-22 10:42:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2023-12-22 10:42:53,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:42:53,083 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 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] [2023-12-22 10:42:53,095 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 10:42:53,295 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 10:42:53,296 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:42:53,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:42:53,296 INFO L85 PathProgramCache]: Analyzing trace with hash -480951722, now seen corresponding path program 1 times [2023-12-22 10:42:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:42:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470328944] [2023-12-22 10:42:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:42:53,299 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 10:42:53,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:42:53,301 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 10:42:53,304 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 (15)] Waiting until timeout for monitored process [2023-12-22 10:42:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:42:53,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:42:53,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:42:54,028 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-12-22 10:42:54,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:42:54,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:42:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470328944] [2023-12-22 10:42:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470328944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:42:54,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:42:54,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:42:54,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563220031] [2023-12-22 10:42:54,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:42:54,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:42:54,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:42:54,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:42:54,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:42:54,030 INFO L87 Difference]: Start difference. First operand 146448 states and 165313 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states 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 10:43:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:43:35,647 INFO L93 Difference]: Finished difference Result 341710 states and 387877 transitions. [2023-12-22 10:43:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:43:35,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 514 [2023-12-22 10:43:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:43:36,222 INFO L225 Difference]: With dead ends: 341710 [2023-12-22 10:43:36,223 INFO L226 Difference]: Without dead ends: 195263 [2023-12-22 10:43:36,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 512 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 10:43:36,425 INFO L413 NwaCegarLoop]: 1295 mSDtfsCounter, 653 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2023-12-22 10:43:36,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1302 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 40.2s Time] [2023-12-22 10:43:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195263 states. [2023-12-22 10:43:38,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195263 to 184749. [2023-12-22 10:43:39,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184749 states, 184748 states have (on average 1.0988643990733322) internal successors, (203013), 184748 states have internal predecessors, (203013), 0 states have call successors, (0), 0 states 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 10:43:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184749 states to 184749 states and 203013 transitions. [2023-12-22 10:43:39,864 INFO L78 Accepts]: Start accepts. Automaton has 184749 states and 203013 transitions. Word has length 514 [2023-12-22 10:43:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:43:39,865 INFO L495 AbstractCegarLoop]: Abstraction has 184749 states and 203013 transitions. [2023-12-22 10:43:39,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states 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 10:43:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 184749 states and 203013 transitions. [2023-12-22 10:43:39,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2023-12-22 10:43:39,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:43:39,922 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:39,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 10:43:40,129 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 10:43:40,130 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:43:40,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:43:40,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1849941379, now seen corresponding path program 1 times [2023-12-22 10:43:40,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:43:40,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380041890] [2023-12-22 10:43:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:43:40,134 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 10:43:40,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:43:40,136 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 10:43:40,140 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 10:43:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:43:40,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 10:43:40,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:43:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 32 proven. 377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:43:42,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:43:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 292 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:43:55,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:43:55,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380041890] [2023-12-22 10:43:55,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380041890] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 10:43:55,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 10:43:55,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 10:43:55,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236561552] [2023-12-22 10:43:55,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 10:43:55,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 10:43:55,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:43:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 10:43:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 10:43:55,801 INFO L87 Difference]: Start difference. First operand 184749 states and 203013 transitions. Second operand has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states 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 10:44:35,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:44:38,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:44:40,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:44:43,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:44:53,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:45:28,916 WARN L539 Checker$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 10:45:38,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 10:45:48,406 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 (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 10:45:48,406 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 10:45:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 10:45:48,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1254 GetRequests, 1247 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-22 10:45:48,703 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1950 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 8348 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 8670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 8348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:45:48,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 57 Invalid, 8670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [322 Valid, 8348 Invalid, 0 Unknown, 0 Unchecked, 112.0s Time] [2023-12-22 10:45:48,705 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 10:45:48,710 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 10:45:48,906 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 10:45:48,907 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (184749states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (31355 states constructed, input type IntersectNwa). [2023-12-22 10:45:48,912 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:45:48,914 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 10:45:48,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:45:48 BoogieIcfgContainer [2023-12-22 10:45:48,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 10:45:48,916 INFO L158 Benchmark]: Toolchain (without parser) took 840427.16ms. Allocated memory was 289.4MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 225.7MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-22 10:45:48,916 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 10:45:48,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1657.41ms. Allocated memory is still 289.4MB. Free memory was 225.4MB in the beginning and 206.1MB in the end (delta: 19.3MB). Peak memory consumption was 120.0MB. Max. memory is 8.0GB. [2023-12-22 10:45:48,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 210.79ms. Allocated memory is still 289.4MB. Free memory was 206.1MB in the beginning and 218.9MB in the end (delta: -12.9MB). Peak memory consumption was 52.1MB. Max. memory is 8.0GB. [2023-12-22 10:45:48,917 INFO L158 Benchmark]: Boogie Preprocessor took 383.75ms. Allocated memory was 289.4MB in the beginning and 429.9MB in the end (delta: 140.5MB). Free memory was 218.9MB in the beginning and 346.9MB in the end (delta: -127.9MB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. [2023-12-22 10:45:48,918 INFO L158 Benchmark]: RCFGBuilder took 25198.92ms. Allocated memory was 429.9MB in the beginning and 616.6MB in the end (delta: 186.6MB). Free memory was 346.9MB in the beginning and 404.1MB in the end (delta: -57.2MB). Peak memory consumption was 198.1MB. Max. memory is 8.0GB. [2023-12-22 10:45:48,918 INFO L158 Benchmark]: TraceAbstraction took 812968.25ms. Allocated memory was 616.6MB in the beginning and 3.1GB in the end (delta: 2.5GB). Free memory was 403.0MB in the beginning and 1.2GB in the end (delta: -838.5MB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-22 10:45:48,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1657.41ms. Allocated memory is still 289.4MB. Free memory was 225.4MB in the beginning and 206.1MB in the end (delta: 19.3MB). Peak memory consumption was 120.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 210.79ms. Allocated memory is still 289.4MB. Free memory was 206.1MB in the beginning and 218.9MB in the end (delta: -12.9MB). Peak memory consumption was 52.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 383.75ms. Allocated memory was 289.4MB in the beginning and 429.9MB in the end (delta: 140.5MB). Free memory was 218.9MB in the beginning and 346.9MB in the end (delta: -127.9MB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. * RCFGBuilder took 25198.92ms. Allocated memory was 429.9MB in the beginning and 616.6MB in the end (delta: 186.6MB). Free memory was 346.9MB in the beginning and 404.1MB in the end (delta: -57.2MB). Peak memory consumption was 198.1MB. Max. memory is 8.0GB. * TraceAbstraction took 812968.25ms. Allocated memory was 616.6MB in the beginning and 3.1GB in the end (delta: 2.5GB). Free memory was 403.0MB in the beginning and 1.2GB in the end (delta: -838.5MB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 61). Cancelled while NwaCegarLoop was constructing difference of abstraction (184749states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (31355 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 812.9s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 773.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12123 SdHoareTripleChecker+Valid, 763.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12123 mSDsluCounter, 12342 SdHoareTripleChecker+Invalid, 671.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 8442 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39499 IncrementalHoareTripleChecker+Invalid, 47941 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8442 mSolverCounterUnsat, 12205 mSDtfsCounter, 39499 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5407 GetRequests, 5379 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184749occurred in iteration=14, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 15789 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 21.1s InterpolantComputationTime, 3946 NumberOfCodeBlocks, 3946 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5402 ConstructedInterpolants, 0 QuantifiedInterpolants, 25555 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4698 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 19 InterpolantComputations, 14 PerfectInterpolantSequences, 2906/3604 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