/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:50:35,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:50:36,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:50:36,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:50:36,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:50:36,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:50:36,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:50:36,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:50:36,069 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:50:36,072 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:50:36,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:50:36,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:50:36,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:50:36,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:50:36,074 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:50:36,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:50:36,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:50:36,075 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:50:36,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:50:36,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:50:36,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:50:36,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:50:36,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:50:36,076 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:50:36,076 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:50:36,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:50:36,076 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:50:36,076 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:50:36,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:50:36,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:50:36,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:50:36,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:50:36,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:50:36,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:50:36,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:50:36,079 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:50:36,079 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:50:36,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:50:36,079 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:50:36,079 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:50:36,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:50:36,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:50:36,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:50:36,288 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:50:36,288 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:50:36,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 07:50:37,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:50:37,784 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:50:37,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 07:50:37,813 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6be06289/7c1c442acf3d49aaa03bee07281fc4de/FLAG5a62bb63d [2023-12-16 07:50:37,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6be06289/7c1c442acf3d49aaa03bee07281fc4de [2023-12-16 07:50:37,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:50:37,831 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:50:37,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:50:37,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:50:37,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:50:37,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:50:37" (1/1) ... [2023-12-16 07:50:37,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5e14b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:37, skipping insertion in model container [2023-12-16 07:50:37,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:50:37" (1/1) ... [2023-12-16 07:50:37,936 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:50:38,188 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[6524,6537] [2023-12-16 07:50:38,248 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[13814,13827] [2023-12-16 07:50:38,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:50:38,755 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:50:38,777 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[6524,6537] [2023-12-16 07:50:38,785 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[13814,13827] [2023-12-16 07:50:39,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:50:39,107 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:50:39,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39 WrapperNode [2023-12-16 07:50:39,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:50:39,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:50:39,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:50:39,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:50:39,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,261 INFO L138 Inliner]: procedures = 36, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 4960 [2023-12-16 07:50:39,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:50:39,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:50:39,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:50:39,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:50:39,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,366 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:50:39,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:50:39,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:50:39,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:50:39,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:50:39,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (1/1) ... [2023-12-16 07:50:39,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:50:39,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:50:39,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:50:39,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:50:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:50:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:50:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:50:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:50:39,789 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:50:39,790 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:51:07,159 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:51:07,228 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:51:07,229 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 07:51:07,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:51:07 BoogieIcfgContainer [2023-12-16 07:51:07,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:51:07,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:51:07,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:51:07,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:51:07,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:50:37" (1/3) ... [2023-12-16 07:51:07,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2078f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:51:07, skipping insertion in model container [2023-12-16 07:51:07,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:39" (2/3) ... [2023-12-16 07:51:07,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2078f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:51:07, skipping insertion in model container [2023-12-16 07:51:07,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:51:07" (3/3) ... [2023-12-16 07:51:07,236 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-16 07:51:07,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:51:07,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:51:07,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:51:07,320 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;@650388fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:51:07,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:51:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 807 states, 804 states have (on average 1.9800995024875623) internal successors, (1592), 806 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 07:51:07,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:07,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:07,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:07,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1100216757, now seen corresponding path program 1 times [2023-12-16 07:51:07,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:07,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783590316] [2023-12-16 07:51:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:07,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:07,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:07,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:07,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:51:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:07,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 07:51:07,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:07,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:07,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:07,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783590316] [2023-12-16 07:51:07,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783590316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:07,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:07,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:51:07,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748566803] [2023-12-16 07:51:07,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:07,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 07:51:07,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:07,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 07:51:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 07:51:07,542 INFO L87 Difference]: Start difference. First operand has 807 states, 804 states have (on average 1.9800995024875623) internal successors, (1592), 806 states have internal predecessors, (1592), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:07,625 INFO L93 Difference]: Finished difference Result 1593 states and 3145 transitions. [2023-12-16 07:51:07,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 07:51:07,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2023-12-16 07:51:07,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:07,649 INFO L225 Difference]: With dead ends: 1593 [2023-12-16 07:51:07,649 INFO L226 Difference]: Without dead ends: 803 [2023-12-16 07:51:07,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 07:51:07,664 INFO L413 NwaCegarLoop]: 1520 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:07,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1520 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:07,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-16 07:51:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2023-12-16 07:51:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 801 states have (on average 1.898876404494382) internal successors, (1521), 802 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1521 transitions. [2023-12-16 07:51:07,719 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1521 transitions. Word has length 17 [2023-12-16 07:51:07,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:07,719 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1521 transitions. [2023-12-16 07:51:07,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:07,720 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1521 transitions. [2023-12-16 07:51:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 07:51:07,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:07,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:07,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:07,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:07,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:07,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1687022771, now seen corresponding path program 1 times [2023-12-16 07:51:07,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:07,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538972460] [2023-12-16 07:51:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:07,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:07,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:07,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:07,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:51:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:07,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:51:07,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:08,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:08,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:08,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538972460] [2023-12-16 07:51:08,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538972460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:08,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:08,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:51:08,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979794572] [2023-12-16 07:51:08,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:08,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:51:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:08,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:51:08,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:51:08,012 INFO L87 Difference]: Start difference. First operand 803 states and 1521 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:08,073 INFO L93 Difference]: Finished difference Result 835 states and 1570 transitions. [2023-12-16 07:51:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:51:08,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2023-12-16 07:51:08,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:08,077 INFO L225 Difference]: With dead ends: 835 [2023-12-16 07:51:08,077 INFO L226 Difference]: Without dead ends: 803 [2023-12-16 07:51:08,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:51:08,078 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 0 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4534 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:08,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4534 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:08,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-16 07:51:08,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2023-12-16 07:51:08,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 801 states have (on average 1.8789013732833957) internal successors, (1505), 802 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:08,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1505 transitions. [2023-12-16 07:51:08,094 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1505 transitions. Word has length 17 [2023-12-16 07:51:08,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:08,094 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1505 transitions. [2023-12-16 07:51:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1505 transitions. [2023-12-16 07:51:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 07:51:08,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:08,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:08,103 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 (3)] Ended with exit code 0 [2023-12-16 07:51:08,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:08,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:08,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:08,301 INFO L85 PathProgramCache]: Analyzing trace with hash 613121839, now seen corresponding path program 1 times [2023-12-16 07:51:08,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:08,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608169649] [2023-12-16 07:51:08,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:08,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:08,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:08,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:08,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:51:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:08,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:51:08,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:08,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:08,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:08,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608169649] [2023-12-16 07:51:08,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608169649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:08,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:08,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 07:51:08,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160758744] [2023-12-16 07:51:08,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:08,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:51:08,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:51:08,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:51:08,605 INFO L87 Difference]: Start difference. First operand 803 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:08,725 INFO L93 Difference]: Finished difference Result 919 states and 1689 transitions. [2023-12-16 07:51:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:51:08,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2023-12-16 07:51:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:08,729 INFO L225 Difference]: With dead ends: 919 [2023-12-16 07:51:08,729 INFO L226 Difference]: Without dead ends: 890 [2023-12-16 07:51:08,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:51:08,730 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 1563 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:08,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1692 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:51:08,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-16 07:51:08,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 857. [2023-12-16 07:51:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 855 states have (on average 1.8619883040935672) internal successors, (1592), 856 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1592 transitions. [2023-12-16 07:51:08,745 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1592 transitions. Word has length 32 [2023-12-16 07:51:08,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:08,745 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1592 transitions. [2023-12-16 07:51:08,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1592 transitions. [2023-12-16 07:51:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 07:51:08,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:08,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:08,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:08,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:08,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:08,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 675954815, now seen corresponding path program 1 times [2023-12-16 07:51:08,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:08,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336383970] [2023-12-16 07:51:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:08,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:08,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:08,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:08,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 07:51:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:09,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:09,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:09,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:09,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:09,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336383970] [2023-12-16 07:51:09,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336383970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:09,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:09,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:09,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210820151] [2023-12-16 07:51:09,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:09,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:09,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:09,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:09,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:09,080 INFO L87 Difference]: Start difference. First operand 857 states and 1592 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:09,115 INFO L93 Difference]: Finished difference Result 1007 states and 1830 transitions. [2023-12-16 07:51:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:09,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2023-12-16 07:51:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:09,119 INFO L225 Difference]: With dead ends: 1007 [2023-12-16 07:51:09,119 INFO L226 Difference]: Without dead ends: 924 [2023-12-16 07:51:09,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:09,120 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1464 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:09,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1541 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:09,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-12-16 07:51:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 922. [2023-12-16 07:51:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 920 states have (on average 1.8380434782608697) internal successors, (1691), 921 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1691 transitions. [2023-12-16 07:51:09,136 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1691 transitions. Word has length 34 [2023-12-16 07:51:09,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:09,136 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1691 transitions. [2023-12-16 07:51:09,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,136 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1691 transitions. [2023-12-16 07:51:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 07:51:09,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:09,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:09,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 07:51:09,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:09,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:09,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:09,341 INFO L85 PathProgramCache]: Analyzing trace with hash -582127364, now seen corresponding path program 1 times [2023-12-16 07:51:09,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:09,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054659541] [2023-12-16 07:51:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:09,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:09,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:09,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:09,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:51:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:09,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:51:09,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:09,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:09,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:09,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054659541] [2023-12-16 07:51:09,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054659541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:09,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:09,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:51:09,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268871109] [2023-12-16 07:51:09,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:09,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:51:09,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:09,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:51:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:51:09,426 INFO L87 Difference]: Start difference. First operand 922 states and 1691 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:09,470 INFO L93 Difference]: Finished difference Result 936 states and 1708 transitions. [2023-12-16 07:51:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:51:09,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2023-12-16 07:51:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:09,473 INFO L225 Difference]: With dead ends: 936 [2023-12-16 07:51:09,474 INFO L226 Difference]: Without dead ends: 934 [2023-12-16 07:51:09,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:51:09,474 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:09,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4495 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-12-16 07:51:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2023-12-16 07:51:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 928 states have (on average 1.8297413793103448) internal successors, (1698), 929 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1698 transitions. [2023-12-16 07:51:09,490 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1698 transitions. Word has length 35 [2023-12-16 07:51:09,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:09,490 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1698 transitions. [2023-12-16 07:51:09,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1698 transitions. [2023-12-16 07:51:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 07:51:09,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:09,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:09,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:09,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:09,694 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:09,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2127458807, now seen corresponding path program 1 times [2023-12-16 07:51:09,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:09,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351303641] [2023-12-16 07:51:09,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:09,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:09,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:09,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:09,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:51:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:09,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:09,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:09,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:09,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:09,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351303641] [2023-12-16 07:51:09,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351303641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:09,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:09,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:09,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19770556] [2023-12-16 07:51:09,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:09,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:09,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:09,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:09,870 INFO L87 Difference]: Start difference. First operand 930 states and 1698 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:09,907 INFO L93 Difference]: Finished difference Result 1098 states and 1958 transitions. [2023-12-16 07:51:09,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:09,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-12-16 07:51:09,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:09,911 INFO L225 Difference]: With dead ends: 1098 [2023-12-16 07:51:09,911 INFO L226 Difference]: Without dead ends: 1009 [2023-12-16 07:51:09,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:09,912 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1474 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:09,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1578 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-16 07:51:09,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1007. [2023-12-16 07:51:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 1005 states have (on average 1.8049751243781094) internal successors, (1814), 1006 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1814 transitions. [2023-12-16 07:51:09,927 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1814 transitions. Word has length 36 [2023-12-16 07:51:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:09,927 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1814 transitions. [2023-12-16 07:51:09,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1814 transitions. [2023-12-16 07:51:09,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 07:51:09,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:09,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:09,935 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 (7)] Ended with exit code 0 [2023-12-16 07:51:10,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:10,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:10,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1501802743, now seen corresponding path program 1 times [2023-12-16 07:51:10,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:10,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474043935] [2023-12-16 07:51:10,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:10,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:10,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:10,133 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:10,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:51:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:10,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:10,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:10,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:10,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:10,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474043935] [2023-12-16 07:51:10,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474043935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:10,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:10,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:10,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242817563] [2023-12-16 07:51:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:10,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:10,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:10,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:10,229 INFO L87 Difference]: Start difference. First operand 1007 states and 1814 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:10,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:10,256 INFO L93 Difference]: Finished difference Result 1433 states and 2457 transitions. [2023-12-16 07:51:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:10,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-12-16 07:51:10,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:10,260 INFO L225 Difference]: With dead ends: 1433 [2023-12-16 07:51:10,260 INFO L226 Difference]: Without dead ends: 1202 [2023-12-16 07:51:10,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:10,261 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 1472 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:10,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1584 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:10,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2023-12-16 07:51:10,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1200. [2023-12-16 07:51:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 1198 states have (on average 1.7479131886477461) internal successors, (2094), 1199 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2094 transitions. [2023-12-16 07:51:10,278 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2094 transitions. Word has length 36 [2023-12-16 07:51:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:10,278 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 2094 transitions. [2023-12-16 07:51:10,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2094 transitions. [2023-12-16 07:51:10,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 07:51:10,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:10,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:10,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:10,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:10,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:10,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:10,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1904431113, now seen corresponding path program 1 times [2023-12-16 07:51:10,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:10,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979665842] [2023-12-16 07:51:10,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:10,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:10,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:10,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:10,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 07:51:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:10,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:10,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:10,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:10,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:10,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979665842] [2023-12-16 07:51:10,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979665842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:10,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:10,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:10,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824929243] [2023-12-16 07:51:10,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:10,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:10,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:10,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:10,562 INFO L87 Difference]: Start difference. First operand 1200 states and 2094 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:10,597 INFO L93 Difference]: Finished difference Result 1976 states and 3234 transitions. [2023-12-16 07:51:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:10,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-12-16 07:51:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:10,602 INFO L225 Difference]: With dead ends: 1976 [2023-12-16 07:51:10,602 INFO L226 Difference]: Without dead ends: 1552 [2023-12-16 07:51:10,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:10,603 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1470 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:10,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1586 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2023-12-16 07:51:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1550. [2023-12-16 07:51:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1548 states have (on average 1.6679586563307494) internal successors, (2582), 1549 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2582 transitions. [2023-12-16 07:51:10,631 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2582 transitions. Word has length 36 [2023-12-16 07:51:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:10,631 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2582 transitions. [2023-12-16 07:51:10,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2582 transitions. [2023-12-16 07:51:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 07:51:10,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:10,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:10,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 07:51:10,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:10,836 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:10,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1853448570, now seen corresponding path program 1 times [2023-12-16 07:51:10,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:10,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637444466] [2023-12-16 07:51:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:10,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:10,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:10,838 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:10,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:51:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:10,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:51:10,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:11,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:51:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:11,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:11,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637444466] [2023-12-16 07:51:11,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637444466] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:51:11,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:51:11,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:51:11,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925125422] [2023-12-16 07:51:11,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:51:11,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:51:11,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:51:11,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:51:11,679 INFO L87 Difference]: Start difference. First operand 1550 states and 2582 transitions. Second operand has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:13,130 INFO L93 Difference]: Finished difference Result 3268 states and 5027 transitions. [2023-12-16 07:51:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 07:51:13,130 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-16 07:51:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:13,139 INFO L225 Difference]: With dead ends: 3268 [2023-12-16 07:51:13,139 INFO L226 Difference]: Without dead ends: 2714 [2023-12-16 07:51:13,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-16 07:51:13,143 INFO L413 NwaCegarLoop]: 1500 mSDtfsCounter, 2081 mSDsluCounter, 7590 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 9090 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:13,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 9090 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:51:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2023-12-16 07:51:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2322. [2023-12-16 07:51:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 2320 states have (on average 1.5905172413793103) internal successors, (3690), 2321 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3690 transitions. [2023-12-16 07:51:13,206 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3690 transitions. Word has length 50 [2023-12-16 07:51:13,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:13,206 INFO L495 AbstractCegarLoop]: Abstraction has 2322 states and 3690 transitions. [2023-12-16 07:51:13,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3690 transitions. [2023-12-16 07:51:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 07:51:13,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:13,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:13,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:13,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:13,411 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:13,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1815862662, now seen corresponding path program 1 times [2023-12-16 07:51:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:13,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532698389] [2023-12-16 07:51:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:13,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:13,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:13,425 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:13,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:51:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:13,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:13,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:13,532 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:13,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:13,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:13,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532698389] [2023-12-16 07:51:13,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532698389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:13,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:13,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:13,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890346956] [2023-12-16 07:51:13,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:13,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:13,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:13,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:13,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:13,535 INFO L87 Difference]: Start difference. First operand 2322 states and 3690 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:13,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:13,581 INFO L93 Difference]: Finished difference Result 3444 states and 5327 transitions. [2023-12-16 07:51:13,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:13,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2023-12-16 07:51:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:13,588 INFO L225 Difference]: With dead ends: 3444 [2023-12-16 07:51:13,588 INFO L226 Difference]: Without dead ends: 1898 [2023-12-16 07:51:13,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:13,592 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 31 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:13,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3017 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2023-12-16 07:51:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1891. [2023-12-16 07:51:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1889 states have (on average 1.6236103758602436) internal successors, (3067), 1890 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 3067 transitions. [2023-12-16 07:51:13,632 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 3067 transitions. Word has length 50 [2023-12-16 07:51:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:13,632 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 3067 transitions. [2023-12-16 07:51:13,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 3067 transitions. [2023-12-16 07:51:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 07:51:13,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:13,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:13,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:13,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:13,837 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:13,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1762784666, now seen corresponding path program 1 times [2023-12-16 07:51:13,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:13,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042727986] [2023-12-16 07:51:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:13,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:13,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:13,840 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:13,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:51:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:13,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:13,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:13,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:13,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:13,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042727986] [2023-12-16 07:51:13,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042727986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:13,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:13,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:13,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499242643] [2023-12-16 07:51:13,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:13,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:13,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:13,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:13,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:13,961 INFO L87 Difference]: Start difference. First operand 1891 states and 3067 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:14,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:14,051 INFO L93 Difference]: Finished difference Result 2447 states and 3867 transitions. [2023-12-16 07:51:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:14,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2023-12-16 07:51:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:14,056 INFO L225 Difference]: With dead ends: 2447 [2023-12-16 07:51:14,056 INFO L226 Difference]: Without dead ends: 1341 [2023-12-16 07:51:14,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:14,057 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 27 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:14,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3002 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:14,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-12-16 07:51:14,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1339. [2023-12-16 07:51:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1337 states have (on average 1.68810770381451) internal successors, (2257), 1338 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2257 transitions. [2023-12-16 07:51:14,087 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2257 transitions. Word has length 52 [2023-12-16 07:51:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:14,087 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 2257 transitions. [2023-12-16 07:51:14,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2257 transitions. [2023-12-16 07:51:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 07:51:14,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:14,088 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 07:51:14,091 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 (12)] Ended with exit code 0 [2023-12-16 07:51:14,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:14,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:14,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash 857932558, now seen corresponding path program 1 times [2023-12-16 07:51:14,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:14,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384502578] [2023-12-16 07:51:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:14,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:14,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:14,294 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:14,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:51:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:14,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:51:14,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:15,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:51:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:15,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:15,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384502578] [2023-12-16 07:51:15,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384502578] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:51:15,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:51:15,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:51:15,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149370304] [2023-12-16 07:51:15,256 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:51:15,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:51:15,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:51:15,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:51:15,257 INFO L87 Difference]: Start difference. First operand 1339 states and 2257 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:16,410 INFO L93 Difference]: Finished difference Result 2871 states and 4397 transitions. [2023-12-16 07:51:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 07:51:16,410 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 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 53 [2023-12-16 07:51:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:16,416 INFO L225 Difference]: With dead ends: 2871 [2023-12-16 07:51:16,416 INFO L226 Difference]: Without dead ends: 2317 [2023-12-16 07:51:16,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-16 07:51:16,418 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 4786 mSDsluCounter, 10551 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 12078 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:16,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 12078 Invalid, 502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:51:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2023-12-16 07:51:16,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 1963. [2023-12-16 07:51:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1961 states have (on average 1.5823559408465069) internal successors, (3103), 1962 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 3103 transitions. [2023-12-16 07:51:16,461 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 3103 transitions. Word has length 53 [2023-12-16 07:51:16,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:16,461 INFO L495 AbstractCegarLoop]: Abstraction has 1963 states and 3103 transitions. [2023-12-16 07:51:16,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 3103 transitions. [2023-12-16 07:51:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 07:51:16,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:16,462 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 07:51:16,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:51:16,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:16,665 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:16,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:16,665 INFO L85 PathProgramCache]: Analyzing trace with hash -443153606, now seen corresponding path program 1 times [2023-12-16 07:51:16,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:16,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913038438] [2023-12-16 07:51:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:16,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:16,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:16,674 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:16,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:51:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:16,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:16,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:16,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:16,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:16,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913038438] [2023-12-16 07:51:16,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913038438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:16,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:16,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:51:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544900053] [2023-12-16 07:51:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:16,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:16,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:16,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:16,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:16,780 INFO L87 Difference]: Start difference. First operand 1963 states and 3103 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:16,818 INFO L93 Difference]: Finished difference Result 2503 states and 3844 transitions. [2023-12-16 07:51:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:16,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2023-12-16 07:51:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:16,822 INFO L225 Difference]: With dead ends: 2503 [2023-12-16 07:51:16,822 INFO L226 Difference]: Without dead ends: 1325 [2023-12-16 07:51:16,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:16,824 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 23 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2987 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:16,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2987 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2023-12-16 07:51:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1323. [2023-12-16 07:51:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1321 states have (on average 1.6646479939439818) internal successors, (2199), 1322 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 2199 transitions. [2023-12-16 07:51:16,848 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 2199 transitions. Word has length 55 [2023-12-16 07:51:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:16,848 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 2199 transitions. [2023-12-16 07:51:16,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 2199 transitions. [2023-12-16 07:51:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 07:51:16,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:16,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:16,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 07:51:17,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:17,051 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:17,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -294444102, now seen corresponding path program 1 times [2023-12-16 07:51:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:17,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517479728] [2023-12-16 07:51:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:17,052 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 [2023-12-16 07:51:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:17,053 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:17,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:51:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:17,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 07:51:17,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:17,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:51:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:17,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:17,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517479728] [2023-12-16 07:51:17,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517479728] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:51:17,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:51:17,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-16 07:51:17,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434798700] [2023-12-16 07:51:17,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:51:17,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 07:51:17,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:17,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 07:51:17,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-16 07:51:17,984 INFO L87 Difference]: Start difference. First operand 1323 states and 2199 transitions. Second operand has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:18,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:18,958 INFO L93 Difference]: Finished difference Result 2361 states and 3578 transitions. [2023-12-16 07:51:18,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 07:51:18,958 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 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 56 [2023-12-16 07:51:18,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:18,971 INFO L225 Difference]: With dead ends: 2361 [2023-12-16 07:51:18,972 INFO L226 Difference]: Without dead ends: 1823 [2023-12-16 07:51:18,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-16 07:51:18,999 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 1812 mSDsluCounter, 11967 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 13476 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:18,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 13476 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:51:19,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2023-12-16 07:51:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1705. [2023-12-16 07:51:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1703 states have (on average 1.5783910745742806) internal successors, (2688), 1704 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2688 transitions. [2023-12-16 07:51:19,067 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2688 transitions. Word has length 56 [2023-12-16 07:51:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:19,067 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2688 transitions. [2023-12-16 07:51:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2688 transitions. [2023-12-16 07:51:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 07:51:19,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:19,068 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 07:51:19,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-16 07:51:19,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:19,281 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:19,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:19,282 INFO L85 PathProgramCache]: Analyzing trace with hash -402890190, now seen corresponding path program 1 times [2023-12-16 07:51:19,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:19,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326947152] [2023-12-16 07:51:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:19,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:19,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:19,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:19,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:51:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:19,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 07:51:19,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 07:51:19,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:51:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 07:51:19,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:19,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326947152] [2023-12-16 07:51:19,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326947152] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:51:19,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:51:19,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 07:51:19,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939857871] [2023-12-16 07:51:19,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:51:19,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 07:51:19,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:19,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 07:51:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:51:19,484 INFO L87 Difference]: Start difference. First operand 1705 states and 2688 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:19,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:51:19,583 INFO L93 Difference]: Finished difference Result 3525 states and 5026 transitions. [2023-12-16 07:51:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:51:19,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 58 [2023-12-16 07:51:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:51:19,592 INFO L225 Difference]: With dead ends: 3525 [2023-12-16 07:51:19,593 INFO L226 Difference]: Without dead ends: 2605 [2023-12-16 07:51:19,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:51:19,594 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 2918 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:19,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2918 Valid, 3111 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:51:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2023-12-16 07:51:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2509. [2023-12-16 07:51:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2507 states have (on average 1.4387714399680893) internal successors, (3607), 2508 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:19,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3607 transitions. [2023-12-16 07:51:19,651 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3607 transitions. Word has length 58 [2023-12-16 07:51:19,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:51:19,652 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3607 transitions. [2023-12-16 07:51:19,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 07:51:19,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3607 transitions. [2023-12-16 07:51:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 07:51:19,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:51:19,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:19,674 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 (16)] Ended with exit code 0 [2023-12-16 07:51:19,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:19,857 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:51:19,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:51:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash -56380255, now seen corresponding path program 1 times [2023-12-16 07:51:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:51:19,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659897220] [2023-12-16 07:51:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:51:19,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:19,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:51:19,858 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:51:19,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:51:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:51:19,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:51:19,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:51:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:51:20,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:51:20,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:51:20,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659897220] [2023-12-16 07:51:20,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659897220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:51:20,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:51:20,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:51:20,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671619221] [2023-12-16 07:51:20,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:51:20,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:51:20,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:51:20,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:51:20,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:20,045 INFO L87 Difference]: Start difference. First operand 2509 states and 3607 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 07:51:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:51:48,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:51:48,689 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 632 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:51:48,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 426 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 28.5s Time] [2023-12-16 07:51:48,690 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:51:48,690 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:51:48,696 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:51:48,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 07:51:48,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:51:48,892 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (2509states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3398 states constructed, input type IntersectNwa). [2023-12-16 07:51:48,893 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:51:48,895 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:51:48,897 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:51:48,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:51:48 BoogieIcfgContainer [2023-12-16 07:51:48,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:51:48,900 INFO L158 Benchmark]: Toolchain (without parser) took 71068.59ms. Allocated memory was 190.8MB in the beginning and 609.2MB in the end (delta: 418.4MB). Free memory was 114.0MB in the beginning and 262.7MB in the end (delta: -148.7MB). Peak memory consumption was 269.9MB. Max. memory is 8.0GB. [2023-12-16 07:51:48,900 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:51:48,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1275.09ms. Allocated memory was 190.8MB in the beginning and 234.9MB in the end (delta: 44.0MB). Free memory was 113.7MB in the beginning and 146.1MB in the end (delta: -32.4MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. [2023-12-16 07:51:48,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.25ms. Allocated memory is still 234.9MB. Free memory was 146.1MB in the beginning and 110.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 07:51:48,900 INFO L158 Benchmark]: Boogie Preprocessor took 336.28ms. Allocated memory is still 234.9MB. Free memory was 110.4MB in the beginning and 142.9MB in the end (delta: -32.5MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. [2023-12-16 07:51:48,901 INFO L158 Benchmark]: RCFGBuilder took 27629.99ms. Allocated memory was 234.9MB in the beginning and 507.5MB in the end (delta: 272.6MB). Free memory was 142.9MB in the beginning and 348.2MB in the end (delta: -205.2MB). Peak memory consumption was 252.5MB. Max. memory is 8.0GB. [2023-12-16 07:51:48,901 INFO L158 Benchmark]: TraceAbstraction took 41667.55ms. Allocated memory was 507.5MB in the beginning and 609.2MB in the end (delta: 101.7MB). Free memory was 347.6MB in the beginning and 262.7MB in the end (delta: 84.9MB). Peak memory consumption was 186.6MB. Max. memory is 8.0GB. [2023-12-16 07:51:48,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1275.09ms. Allocated memory was 190.8MB in the beginning and 234.9MB in the end (delta: 44.0MB). Free memory was 113.7MB in the beginning and 146.1MB in the end (delta: -32.4MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 152.25ms. Allocated memory is still 234.9MB. Free memory was 146.1MB in the beginning and 110.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 336.28ms. Allocated memory is still 234.9MB. Free memory was 110.4MB in the beginning and 142.9MB in the end (delta: -32.5MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. * RCFGBuilder took 27629.99ms. Allocated memory was 234.9MB in the beginning and 507.5MB in the end (delta: 272.6MB). Free memory was 142.9MB in the beginning and 348.2MB in the end (delta: -205.2MB). Peak memory consumption was 252.5MB. Max. memory is 8.0GB. * TraceAbstraction took 41667.55ms. Allocated memory was 507.5MB in the beginning and 609.2MB in the end (delta: 101.7MB). Free memory was 347.6MB in the beginning and 262.7MB in the end (delta: 84.9MB). Peak memory consumption was 186.6MB. 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: 498]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 498). Cancelled while NwaCegarLoop was constructing difference of abstraction (2509states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3398 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 294]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 294). Cancelled while NwaCegarLoop was constructing difference of abstraction (2509states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3398 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 807 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 41.6s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19754 SdHoareTripleChecker+Valid, 30.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19754 mSDsluCounter, 65717 SdHoareTripleChecker+Invalid, 25.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42557 mSDsCounter, 569 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3180 IncrementalHoareTripleChecker+Invalid, 3749 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 569 mSolverCounterUnsat, 23160 mSDtfsCounter, 3180 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 915 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2509occurred in iteration=15, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 876 ConstructedInterpolants, 105 QuantifiedInterpolants, 5325 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1941 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 80/118 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