/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_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 23:59:06,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 23:59:06,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 23:59:06,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 23:59:06,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 23:59:06,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 23:59:06,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 23:59:06,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 23:59:06,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 23:59:06,995 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 23:59:06,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 23:59:06,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 23:59:06,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 23:59:06,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 23:59:06,996 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 23:59:06,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 23:59:06,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 23:59:06,997 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 23:59:06,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 23:59:06,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 23:59:06,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 23:59:06,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 23:59:06,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 23:59:06,999 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 23:59:06,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 23:59:07,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 23:59:07,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 23:59:07,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 23:59:07,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 23:59:07,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 23:59:07,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 23:59:07,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 23:59:07,001 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 23:59:07,001 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 23:59:07,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 23:59:07,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 23:59:07,001 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 23:59:07,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 23:59:07,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 23:59:07,002 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 23:59:07,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 23:59:07,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 23:59:07,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 23:59:07,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 23:59:07,203 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 23:59:07,203 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 23:59:07,204 INFO L431 ainManager$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_label09.c [2023-12-21 23:59:08,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 23:59:08,430 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 23:59:08,431 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-21 23:59:08,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19119d13c/ecfaf34ac4ab4ad7bf2c9056c79c3643/FLAG8e6db1584 [2023-12-21 23:59:08,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19119d13c/ecfaf34ac4ab4ad7bf2c9056c79c3643 [2023-12-21 23:59:08,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 23:59:08,470 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 23:59:08,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 23:59:08,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 23:59:08,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 23:59:08,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:59:08" (1/1) ... [2023-12-21 23:59:08,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220e5c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:08, skipping insertion in model container [2023-12-21 23:59:08,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:59:08" (1/1) ... [2023-12-21 23:59:08,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 23:59:08,760 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_label09.c[6524,6537] [2023-12-21 23:59:08,806 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_label09.c[14272,14285] [2023-12-21 23:59:09,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 23:59:09,282 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 23:59:09,306 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_label09.c[6524,6537] [2023-12-21 23:59:09,313 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_label09.c[14272,14285] [2023-12-21 23:59:09,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 23:59:09,632 INFO L206 MainTranslator]: Completed translation [2023-12-21 23:59:09,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09 WrapperNode [2023-12-21 23:59:09,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 23:59:09,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 23:59:09,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 23:59:09,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 23:59:09,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:09,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:09,799 INFO L138 Inliner]: procedures = 36, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 4960 [2023-12-21 23:59:09,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 23:59:09,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 23:59:09,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 23:59:09,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 23:59:09,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:09,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:09,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:09,950 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]. [2023-12-21 23:59:09,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:09,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:10,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:10,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:10,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:10,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:10,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 23:59:10,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 23:59:10,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 23:59:10,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 23:59:10,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (1/1) ... [2023-12-21 23:59:10,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 23:59:10,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 23:59:10,154 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) [2023-12-21 23:59:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 23:59:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 23:59:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 23:59:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 23:59:10,179 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 [2023-12-21 23:59:10,261 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 23:59:10,262 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 23:59:30,798 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 23:59:30,847 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 23:59:30,848 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 23:59:30,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:59:30 BoogieIcfgContainer [2023-12-21 23:59:30,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 23:59:30,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 23:59:30,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 23:59:30,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 23:59:30,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:59:08" (1/3) ... [2023-12-21 23:59:30,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649c35d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:59:30, skipping insertion in model container [2023-12-21 23:59:30,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:59:09" (2/3) ... [2023-12-21 23:59:30,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649c35d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:59:30, skipping insertion in model container [2023-12-21 23:59:30,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:59:30" (3/3) ... [2023-12-21 23:59:30,854 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-21 23:59:30,864 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 23:59:30,865 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 23:59:30,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 23:59:30,928 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;@35a4849a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 23:59:30,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 23:59:30,934 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) [2023-12-21 23:59:30,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 23:59:30,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:30,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:59:30,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:30,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:30,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1100216757, now seen corresponding path program 1 times [2023-12-21 23:59:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:30,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918261330] [2023-12-21 23:59:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:30,955 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 [2023-12-21 23:59:30,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:30,968 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) [2023-12-21 23:59:30,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-21 23:59:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:31,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 23:59:31,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:31,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:31,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:31,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918261330] [2023-12-21 23:59:31,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918261330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:31,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:31,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:59:31,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716618233] [2023-12-21 23:59:31,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:31,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 23:59:31,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 23:59:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 23:59:31,102 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) [2023-12-21 23:59:31,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:31,190 INFO L93 Difference]: Finished difference Result 1593 states and 3145 transitions. [2023-12-21 23:59:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 23:59:31,193 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 [2023-12-21 23:59:31,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:31,214 INFO L225 Difference]: With dead ends: 1593 [2023-12-21 23:59:31,214 INFO L226 Difference]: Without dead ends: 803 [2023-12-21 23:59:31,218 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 [2023-12-21 23:59:31,220 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 [2023-12-21 23:59:31,220 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] [2023-12-21 23:59:31,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-21 23:59:31,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2023-12-21 23:59:31,294 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) [2023-12-21 23:59:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1521 transitions. [2023-12-21 23:59:31,297 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1521 transitions. Word has length 17 [2023-12-21 23:59:31,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:31,297 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1521 transitions. [2023-12-21 23:59:31,297 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) [2023-12-21 23:59:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1521 transitions. [2023-12-21 23:59:31,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 23:59:31,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:31,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:59:31,307 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 [2023-12-21 23:59:31,503 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 [2023-12-21 23:59:31,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:31,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:31,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1687022771, now seen corresponding path program 1 times [2023-12-21 23:59:31,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:31,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613126792] [2023-12-21 23:59:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:31,505 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 [2023-12-21 23:59:31,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:31,506 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) [2023-12-21 23:59:31,509 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 [2023-12-21 23:59:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:31,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 23:59:31,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:31,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:31,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:31,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613126792] [2023-12-21 23:59:31,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613126792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:31,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:31,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 23:59:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347800328] [2023-12-21 23:59:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:31,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 23:59:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:31,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 23:59:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:59:31,608 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) [2023-12-21 23:59:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:31,673 INFO L93 Difference]: Finished difference Result 835 states and 1570 transitions. [2023-12-21 23:59:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 23:59:31,674 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 [2023-12-21 23:59:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:31,679 INFO L225 Difference]: With dead ends: 835 [2023-12-21 23:59:31,679 INFO L226 Difference]: Without dead ends: 803 [2023-12-21 23:59:31,680 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 [2023-12-21 23:59:31,680 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 [2023-12-21 23:59:31,681 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] [2023-12-21 23:59:31,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2023-12-21 23:59:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2023-12-21 23:59:31,693 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) [2023-12-21 23:59:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1505 transitions. [2023-12-21 23:59:31,695 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1505 transitions. Word has length 17 [2023-12-21 23:59:31,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:31,696 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1505 transitions. [2023-12-21 23:59:31,696 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) [2023-12-21 23:59:31,696 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1505 transitions. [2023-12-21 23:59:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-21 23:59:31,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:31,697 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] [2023-12-21 23:59:31,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:31,907 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 [2023-12-21 23:59:31,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:31,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:31,908 INFO L85 PathProgramCache]: Analyzing trace with hash 613121839, now seen corresponding path program 1 times [2023-12-21 23:59:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:31,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712062448] [2023-12-21 23:59:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:31,909 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 [2023-12-21 23:59:31,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:31,910 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) [2023-12-21 23:59:31,915 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 [2023-12-21 23:59:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:31,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 23:59:31,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:32,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:32,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:32,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712062448] [2023-12-21 23:59:32,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712062448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:32,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:32,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 23:59:32,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139310831] [2023-12-21 23:59:32,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:32,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 23:59:32,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 23:59:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 23:59:32,164 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) [2023-12-21 23:59:32,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:32,270 INFO L93 Difference]: Finished difference Result 919 states and 1689 transitions. [2023-12-21 23:59:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:59:32,271 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 [2023-12-21 23:59:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:32,274 INFO L225 Difference]: With dead ends: 919 [2023-12-21 23:59:32,274 INFO L226 Difference]: Without dead ends: 890 [2023-12-21 23:59:32,274 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 [2023-12-21 23:59:32,276 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 [2023-12-21 23:59:32,277 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] [2023-12-21 23:59:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-21 23:59:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 857. [2023-12-21 23:59:32,290 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) [2023-12-21 23:59:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1592 transitions. [2023-12-21 23:59:32,292 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1592 transitions. Word has length 32 [2023-12-21 23:59:32,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:32,293 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1592 transitions. [2023-12-21 23:59:32,293 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) [2023-12-21 23:59:32,293 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1592 transitions. [2023-12-21 23:59:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-21 23:59:32,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:32,296 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] [2023-12-21 23:59:32,303 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 [2023-12-21 23:59:32,503 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 [2023-12-21 23:59:32,504 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:32,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 675954815, now seen corresponding path program 1 times [2023-12-21 23:59:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659299596] [2023-12-21 23:59:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:32,505 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 [2023-12-21 23:59:32,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:32,506 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) [2023-12-21 23:59:32,509 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 [2023-12-21 23:59:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:32,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:32,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:32,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:32,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:32,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659299596] [2023-12-21 23:59:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659299596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:32,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:32,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593805289] [2023-12-21 23:59:32,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:32,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:32,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:32,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:32,595 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) [2023-12-21 23:59:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:32,627 INFO L93 Difference]: Finished difference Result 1007 states and 1830 transitions. [2023-12-21 23:59:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:32,628 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 [2023-12-21 23:59:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:32,631 INFO L225 Difference]: With dead ends: 1007 [2023-12-21 23:59:32,631 INFO L226 Difference]: Without dead ends: 924 [2023-12-21 23:59:32,631 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 [2023-12-21 23:59:32,632 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 [2023-12-21 23:59:32,632 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] [2023-12-21 23:59:32,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-12-21 23:59:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 922. [2023-12-21 23:59:32,644 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) [2023-12-21 23:59:32,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1691 transitions. [2023-12-21 23:59:32,646 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1691 transitions. Word has length 34 [2023-12-21 23:59:32,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:32,646 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1691 transitions. [2023-12-21 23:59:32,646 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) [2023-12-21 23:59:32,646 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1691 transitions. [2023-12-21 23:59:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-21 23:59:32,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:32,647 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] [2023-12-21 23:59:32,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:32,849 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 [2023-12-21 23:59:32,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:32,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:32,850 INFO L85 PathProgramCache]: Analyzing trace with hash -582127364, now seen corresponding path program 1 times [2023-12-21 23:59:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:32,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597501957] [2023-12-21 23:59:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:32,851 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 [2023-12-21 23:59:32,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:32,852 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) [2023-12-21 23:59:32,865 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 [2023-12-21 23:59:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:32,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 23:59:32,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:32,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:32,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:32,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597501957] [2023-12-21 23:59:32,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597501957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:32,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:32,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 23:59:32,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045395967] [2023-12-21 23:59:32,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:32,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 23:59:32,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:32,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 23:59:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 23:59:32,918 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) [2023-12-21 23:59:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:32,955 INFO L93 Difference]: Finished difference Result 936 states and 1708 transitions. [2023-12-21 23:59:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 23:59:32,956 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 [2023-12-21 23:59:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:32,959 INFO L225 Difference]: With dead ends: 936 [2023-12-21 23:59:32,959 INFO L226 Difference]: Without dead ends: 934 [2023-12-21 23:59:32,959 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 [2023-12-21 23:59:32,960 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 [2023-12-21 23:59:32,960 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] [2023-12-21 23:59:32,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-12-21 23:59:32,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2023-12-21 23:59:32,972 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) [2023-12-21 23:59:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1698 transitions. [2023-12-21 23:59:32,974 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1698 transitions. Word has length 35 [2023-12-21 23:59:32,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:32,974 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1698 transitions. [2023-12-21 23:59:32,974 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) [2023-12-21 23:59:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1698 transitions. [2023-12-21 23:59:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 23:59:32,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:32,975 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] [2023-12-21 23:59:32,979 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 [2023-12-21 23:59:33,177 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 [2023-12-21 23:59:33,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:33,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:33,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2127458807, now seen corresponding path program 1 times [2023-12-21 23:59:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:33,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998481441] [2023-12-21 23:59:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:33,179 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 [2023-12-21 23:59:33,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:33,180 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) [2023-12-21 23:59:33,180 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 [2023-12-21 23:59:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:33,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:33,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:33,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:33,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998481441] [2023-12-21 23:59:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998481441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:33,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:33,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:33,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703794690] [2023-12-21 23:59:33,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:33,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:33,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:33,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:33,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:33,280 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) [2023-12-21 23:59:33,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:33,304 INFO L93 Difference]: Finished difference Result 1098 states and 1958 transitions. [2023-12-21 23:59:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:33,305 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 [2023-12-21 23:59:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:33,307 INFO L225 Difference]: With dead ends: 1098 [2023-12-21 23:59:33,307 INFO L226 Difference]: Without dead ends: 1009 [2023-12-21 23:59:33,308 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 [2023-12-21 23:59:33,308 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 [2023-12-21 23:59:33,308 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] [2023-12-21 23:59:33,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-12-21 23:59:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1007. [2023-12-21 23:59:33,320 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) [2023-12-21 23:59:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1814 transitions. [2023-12-21 23:59:33,322 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1814 transitions. Word has length 36 [2023-12-21 23:59:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:33,322 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1814 transitions. [2023-12-21 23:59:33,322 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) [2023-12-21 23:59:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1814 transitions. [2023-12-21 23:59:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 23:59:33,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:33,323 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] [2023-12-21 23:59:33,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:33,525 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 [2023-12-21 23:59:33,526 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:33,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:33,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1501802743, now seen corresponding path program 1 times [2023-12-21 23:59:33,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:33,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278506670] [2023-12-21 23:59:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:33,527 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 [2023-12-21 23:59:33,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:33,528 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) [2023-12-21 23:59:33,528 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 [2023-12-21 23:59:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:33,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:33,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:33,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:33,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:33,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278506670] [2023-12-21 23:59:33,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278506670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:33,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:33,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:33,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676458705] [2023-12-21 23:59:33,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:33,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:33,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:33,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:33,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:33,599 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) [2023-12-21 23:59:33,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:33,626 INFO L93 Difference]: Finished difference Result 1433 states and 2457 transitions. [2023-12-21 23:59:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:33,626 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 [2023-12-21 23:59:33,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:33,630 INFO L225 Difference]: With dead ends: 1433 [2023-12-21 23:59:33,630 INFO L226 Difference]: Without dead ends: 1202 [2023-12-21 23:59:33,630 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 [2023-12-21 23:59:33,630 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 [2023-12-21 23:59:33,631 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] [2023-12-21 23:59:33,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2023-12-21 23:59:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1200. [2023-12-21 23:59:33,645 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) [2023-12-21 23:59:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2094 transitions. [2023-12-21 23:59:33,647 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2094 transitions. Word has length 36 [2023-12-21 23:59:33,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:33,648 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 2094 transitions. [2023-12-21 23:59:33,648 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) [2023-12-21 23:59:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2094 transitions. [2023-12-21 23:59:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 23:59:33,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:33,648 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] [2023-12-21 23:59:33,654 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 [2023-12-21 23:59:33,852 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 [2023-12-21 23:59:33,852 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:33,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:33,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1904431113, now seen corresponding path program 1 times [2023-12-21 23:59:33,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:33,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845299647] [2023-12-21 23:59:33,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:33,853 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 [2023-12-21 23:59:33,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:33,854 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) [2023-12-21 23:59:33,855 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 [2023-12-21 23:59:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:33,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:33,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:33,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:33,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:33,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845299647] [2023-12-21 23:59:33,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845299647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:33,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:33,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506946549] [2023-12-21 23:59:33,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:33,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:33,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:33,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:33,924 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) [2023-12-21 23:59:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:33,955 INFO L93 Difference]: Finished difference Result 1976 states and 3234 transitions. [2023-12-21 23:59:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:33,956 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 [2023-12-21 23:59:33,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:33,960 INFO L225 Difference]: With dead ends: 1976 [2023-12-21 23:59:33,960 INFO L226 Difference]: Without dead ends: 1552 [2023-12-21 23:59:33,960 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 [2023-12-21 23:59:33,961 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 [2023-12-21 23:59:33,961 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] [2023-12-21 23:59:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2023-12-21 23:59:33,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1550. [2023-12-21 23:59:33,981 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) [2023-12-21 23:59:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2582 transitions. [2023-12-21 23:59:33,984 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2582 transitions. Word has length 36 [2023-12-21 23:59:33,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:33,984 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 2582 transitions. [2023-12-21 23:59:33,984 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) [2023-12-21 23:59:33,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2582 transitions. [2023-12-21 23:59:33,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-21 23:59:33,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:33,985 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] [2023-12-21 23:59:33,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:34,187 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 [2023-12-21 23:59:34,187 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:34,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1853448570, now seen corresponding path program 1 times [2023-12-21 23:59:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970227008] [2023-12-21 23:59:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:34,189 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 [2023-12-21 23:59:34,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:34,190 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) [2023-12-21 23:59:34,194 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 [2023-12-21 23:59:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:34,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 23:59:34,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:34,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:59:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:35,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:35,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970227008] [2023-12-21 23:59:35,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970227008] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:59:35,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:59:35,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-21 23:59:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636702919] [2023-12-21 23:59:35,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:59:35,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 23:59:35,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:35,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 23:59:35,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 23:59:35,171 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) [2023-12-21 23:59:36,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:36,287 INFO L93 Difference]: Finished difference Result 3268 states and 5027 transitions. [2023-12-21 23:59:36,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 23:59:36,287 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 [2023-12-21 23:59:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:36,295 INFO L225 Difference]: With dead ends: 3268 [2023-12-21 23:59:36,296 INFO L226 Difference]: Without dead ends: 2714 [2023-12-21 23:59:36,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-21 23:59:36,299 INFO L413 NwaCegarLoop]: 1500 mSDtfsCounter, 2081 mSDsluCounter, 7590 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 23:59:36,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 9090 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 23:59:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2023-12-21 23:59:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2322. [2023-12-21 23:59:36,349 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) [2023-12-21 23:59:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3690 transitions. [2023-12-21 23:59:36,355 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3690 transitions. Word has length 50 [2023-12-21 23:59:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:36,356 INFO L495 AbstractCegarLoop]: Abstraction has 2322 states and 3690 transitions. [2023-12-21 23:59:36,356 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) [2023-12-21 23:59:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3690 transitions. [2023-12-21 23:59:36,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-21 23:59:36,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:36,357 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] [2023-12-21 23:59:36,366 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 [2023-12-21 23:59:36,560 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 [2023-12-21 23:59:36,561 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:36,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1815862662, now seen corresponding path program 1 times [2023-12-21 23:59:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539681528] [2023-12-21 23:59:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:36,562 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 [2023-12-21 23:59:36,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:36,562 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) [2023-12-21 23:59:36,564 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 [2023-12-21 23:59:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:36,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:36,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:36,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:36,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:36,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539681528] [2023-12-21 23:59:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539681528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:36,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:36,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892314537] [2023-12-21 23:59:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:36,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:36,642 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) [2023-12-21 23:59:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:36,710 INFO L93 Difference]: Finished difference Result 3444 states and 5327 transitions. [2023-12-21 23:59:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:36,710 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 [2023-12-21 23:59:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:36,715 INFO L225 Difference]: With dead ends: 3444 [2023-12-21 23:59:36,715 INFO L226 Difference]: Without dead ends: 1898 [2023-12-21 23:59:36,718 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 [2023-12-21 23:59:36,718 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 [2023-12-21 23:59:36,719 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] [2023-12-21 23:59:36,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2023-12-21 23:59:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1891. [2023-12-21 23:59:36,750 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) [2023-12-21 23:59:36,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 3067 transitions. [2023-12-21 23:59:36,753 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 3067 transitions. Word has length 50 [2023-12-21 23:59:36,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:36,753 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 3067 transitions. [2023-12-21 23:59:36,753 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) [2023-12-21 23:59:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 3067 transitions. [2023-12-21 23:59:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 23:59:36,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:36,756 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] [2023-12-21 23:59:36,764 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 [2023-12-21 23:59:36,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 23:59:36,959 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:36,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1762784666, now seen corresponding path program 1 times [2023-12-21 23:59:36,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:36,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326246690] [2023-12-21 23:59:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:36,960 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 [2023-12-21 23:59:36,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:36,961 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) [2023-12-21 23:59:36,966 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 [2023-12-21 23:59:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:37,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:37,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:37,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:37,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:37,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326246690] [2023-12-21 23:59:37,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326246690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:37,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:37,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:37,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980433159] [2023-12-21 23:59:37,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:37,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:37,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:37,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:37,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:37,044 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) [2023-12-21 23:59:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:37,071 INFO L93 Difference]: Finished difference Result 2447 states and 3867 transitions. [2023-12-21 23:59:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:37,072 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 [2023-12-21 23:59:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:37,075 INFO L225 Difference]: With dead ends: 2447 [2023-12-21 23:59:37,075 INFO L226 Difference]: Without dead ends: 1341 [2023-12-21 23:59:37,076 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 [2023-12-21 23:59:37,076 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 [2023-12-21 23:59:37,077 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] [2023-12-21 23:59:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-12-21 23:59:37,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1339. [2023-12-21 23:59:37,097 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) [2023-12-21 23:59:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2257 transitions. [2023-12-21 23:59:37,099 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2257 transitions. Word has length 52 [2023-12-21 23:59:37,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:37,100 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 2257 transitions. [2023-12-21 23:59:37,100 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) [2023-12-21 23:59:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2257 transitions. [2023-12-21 23:59:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-21 23:59:37,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:37,101 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] [2023-12-21 23:59:37,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:37,304 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 [2023-12-21 23:59:37,304 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:37,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 857932558, now seen corresponding path program 1 times [2023-12-21 23:59:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:37,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169941520] [2023-12-21 23:59:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:37,305 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 [2023-12-21 23:59:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:37,306 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) [2023-12-21 23:59:37,324 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 [2023-12-21 23:59:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:37,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 23:59:37,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:37,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:59:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:38,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169941520] [2023-12-21 23:59:38,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169941520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:59:38,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:59:38,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-21 23:59:38,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747820666] [2023-12-21 23:59:38,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:59:38,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 23:59:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:38,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 23:59:38,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 23:59:38,151 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) [2023-12-21 23:59:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:39,301 INFO L93 Difference]: Finished difference Result 2871 states and 4397 transitions. [2023-12-21 23:59:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 23:59:39,301 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 [2023-12-21 23:59:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:39,307 INFO L225 Difference]: With dead ends: 2871 [2023-12-21 23:59:39,307 INFO L226 Difference]: Without dead ends: 2317 [2023-12-21 23:59:39,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-21 23:59:39,308 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 4786 mSDsluCounter, 10551 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 12078 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 23:59:39,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 12078 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 23:59:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2023-12-21 23:59:39,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 1963. [2023-12-21 23:59:39,346 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) [2023-12-21 23:59:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 3103 transitions. [2023-12-21 23:59:39,350 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 3103 transitions. Word has length 53 [2023-12-21 23:59:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:39,350 INFO L495 AbstractCegarLoop]: Abstraction has 1963 states and 3103 transitions. [2023-12-21 23:59:39,350 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) [2023-12-21 23:59:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 3103 transitions. [2023-12-21 23:59:39,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 23:59:39,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:39,350 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] [2023-12-21 23:59:39,366 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 [2023-12-21 23:59:39,567 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 [2023-12-21 23:59:39,567 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:39,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -443153606, now seen corresponding path program 1 times [2023-12-21 23:59:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526949855] [2023-12-21 23:59:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:39,568 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 [2023-12-21 23:59:39,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:39,569 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) [2023-12-21 23:59:39,572 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 [2023-12-21 23:59:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:39,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:39,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:39,653 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:39,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:39,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:39,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526949855] [2023-12-21 23:59:39,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526949855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:39,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:39,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 23:59:39,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977367245] [2023-12-21 23:59:39,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:39,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:39,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:39,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:39,655 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) [2023-12-21 23:59:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:39,685 INFO L93 Difference]: Finished difference Result 2503 states and 3844 transitions. [2023-12-21 23:59:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 23:59:39,685 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 [2023-12-21 23:59:39,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:39,688 INFO L225 Difference]: With dead ends: 2503 [2023-12-21 23:59:39,688 INFO L226 Difference]: Without dead ends: 1325 [2023-12-21 23:59:39,690 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 [2023-12-21 23:59:39,690 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 [2023-12-21 23:59:39,690 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] [2023-12-21 23:59:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2023-12-21 23:59:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1323. [2023-12-21 23:59:39,711 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) [2023-12-21 23:59:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 2199 transitions. [2023-12-21 23:59:39,713 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 2199 transitions. Word has length 55 [2023-12-21 23:59:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:39,713 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 2199 transitions. [2023-12-21 23:59:39,713 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) [2023-12-21 23:59:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 2199 transitions. [2023-12-21 23:59:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 23:59:39,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:39,714 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] [2023-12-21 23:59:39,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:39,919 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 [2023-12-21 23:59:39,919 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:39,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash -294444102, now seen corresponding path program 1 times [2023-12-21 23:59:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679518757] [2023-12-21 23:59:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:39,920 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 [2023-12-21 23:59:39,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:39,921 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) [2023-12-21 23:59:39,925 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 [2023-12-21 23:59:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:39,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 23:59:39,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:40,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:59:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:40,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:40,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679518757] [2023-12-21 23:59:40,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679518757] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:59:40,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:59:40,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-21 23:59:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609596774] [2023-12-21 23:59:40,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:59:40,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 23:59:40,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:40,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 23:59:40,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 23:59:40,859 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) [2023-12-21 23:59:41,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:41,675 INFO L93 Difference]: Finished difference Result 2361 states and 3578 transitions. [2023-12-21 23:59:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 23:59:41,676 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 [2023-12-21 23:59:41,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:41,680 INFO L225 Difference]: With dead ends: 2361 [2023-12-21 23:59:41,680 INFO L226 Difference]: Without dead ends: 1823 [2023-12-21 23:59:41,681 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 [2023-12-21 23:59:41,681 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 [2023-12-21 23:59:41,681 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] [2023-12-21 23:59:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2023-12-21 23:59:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1705. [2023-12-21 23:59:41,712 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) [2023-12-21 23:59:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2688 transitions. [2023-12-21 23:59:41,714 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2688 transitions. Word has length 56 [2023-12-21 23:59:41,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:41,715 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2688 transitions. [2023-12-21 23:59:41,715 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) [2023-12-21 23:59:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2688 transitions. [2023-12-21 23:59:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-21 23:59:41,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:41,715 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] [2023-12-21 23:59:41,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:41,918 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 [2023-12-21 23:59:41,918 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:41,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:41,919 INFO L85 PathProgramCache]: Analyzing trace with hash -402890190, now seen corresponding path program 1 times [2023-12-21 23:59:41,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:41,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731887287] [2023-12-21 23:59:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:41,919 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 [2023-12-21 23:59:41,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:41,920 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) [2023-12-21 23:59:41,924 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 [2023-12-21 23:59:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:41,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 23:59:41,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 23:59:42,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 23:59:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 23:59:42,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:42,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731887287] [2023-12-21 23:59:42,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731887287] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 23:59:42,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 23:59:42,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-21 23:59:42,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812841864] [2023-12-21 23:59:42,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 23:59:42,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 23:59:42,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:42,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 23:59:42,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 23:59:42,137 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) [2023-12-21 23:59:42,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 23:59:42,216 INFO L93 Difference]: Finished difference Result 3525 states and 5026 transitions. [2023-12-21 23:59:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 23:59:42,217 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 [2023-12-21 23:59:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 23:59:42,222 INFO L225 Difference]: With dead ends: 3525 [2023-12-21 23:59:42,222 INFO L226 Difference]: Without dead ends: 2605 [2023-12-21 23:59:42,223 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 [2023-12-21 23:59:42,223 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 [2023-12-21 23:59:42,224 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] [2023-12-21 23:59:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2023-12-21 23:59:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2509. [2023-12-21 23:59:42,272 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) [2023-12-21 23:59:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3607 transitions. [2023-12-21 23:59:42,275 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3607 transitions. Word has length 58 [2023-12-21 23:59:42,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 23:59:42,275 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3607 transitions. [2023-12-21 23:59:42,275 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) [2023-12-21 23:59:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3607 transitions. [2023-12-21 23:59:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 23:59:42,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 23:59:42,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 23:59:42,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-21 23:59:42,478 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 [2023-12-21 23:59:42,479 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 23:59:42,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 23:59:42,479 INFO L85 PathProgramCache]: Analyzing trace with hash -314623887, now seen corresponding path program 1 times [2023-12-21 23:59:42,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 23:59:42,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529752944] [2023-12-21 23:59:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 23:59:42,480 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 [2023-12-21 23:59:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 23:59:42,480 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) [2023-12-21 23:59:42,484 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 [2023-12-21 23:59:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 23:59:42,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 23:59:42,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 23:59:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 23:59:42,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 23:59:42,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 23:59:42,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529752944] [2023-12-21 23:59:42,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529752944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 23:59:42,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 23:59:42,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 23:59:42,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842833989] [2023-12-21 23:59:42,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 23:59:42,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 23:59:42,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 23:59:42,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 23:59:42,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 23:59:42,606 INFO L87 Difference]: Start difference. First operand 2509 states and 3607 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:17,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:17,543 INFO L93 Difference]: Finished difference Result 4013 states and 6480 transitions. [2023-12-22 00:00:17,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:00:17,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-12-22 00:00:17,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:17,565 INFO L225 Difference]: With dead ends: 4013 [2023-12-22 00:00:17,566 INFO L226 Difference]: Without dead ends: 3260 [2023-12-22 00:00:17,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:00:17,568 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 801 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:17,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 538 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 34.8s Time] [2023-12-22 00:00:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2023-12-22 00:00:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3260. [2023-12-22 00:00:17,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 3258 states have (on average 1.4076120319214243) internal successors, (4586), 3259 states have internal predecessors, (4586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 4586 transitions. [2023-12-22 00:00:17,662 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 4586 transitions. Word has length 66 [2023-12-22 00:00:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:17,663 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 4586 transitions. [2023-12-22 00:00:17,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:17,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 4586 transitions. [2023-12-22 00:00:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 00:00:17,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:17,668 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:00:17,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:17,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:17,871 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:17,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:17,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1592884220, now seen corresponding path program 1 times [2023-12-22 00:00:17,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:17,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130759036] [2023-12-22 00:00:17,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:00:17,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:17,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:17,873 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:17,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 00:00:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:00:17,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:00:17,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 30 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:19,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:00:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 30 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:19,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:19,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130759036] [2023-12-22 00:00:19,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130759036] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:00:19,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:00:19,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:00:19,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130078238] [2023-12-22 00:00:19,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:00:19,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:00:19,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:00:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:00:19,468 INFO L87 Difference]: Start difference. First operand 3260 states and 4586 transitions. Second operand has 26 states, 26 states have (on average 6.384615384615385) internal successors, (166), 25 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:21,181 INFO L93 Difference]: Finished difference Result 4380 states and 6006 transitions. [2023-12-22 00:00:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:00:21,182 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.384615384615385) internal successors, (166), 25 states have internal predecessors, (166), 0 states have call successors, (0), 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 91 [2023-12-22 00:00:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:21,189 INFO L225 Difference]: With dead ends: 4380 [2023-12-22 00:00:21,189 INFO L226 Difference]: Without dead ends: 3294 [2023-12-22 00:00:21,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:00:21,191 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 19311 mSDsluCounter, 9068 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19311 SdHoareTripleChecker+Valid, 10561 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:21,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19311 Valid, 10561 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:00:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2023-12-22 00:00:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3260. [2023-12-22 00:00:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 3258 states have (on average 1.3977900552486189) internal successors, (4554), 3259 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 4554 transitions. [2023-12-22 00:00:21,269 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 4554 transitions. Word has length 91 [2023-12-22 00:00:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:21,270 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 4554 transitions. [2023-12-22 00:00:21,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.384615384615385) internal successors, (166), 25 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:21,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 4554 transitions. [2023-12-22 00:00:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 00:00:21,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:21,271 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:00:21,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-22 00:00:21,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:21,475 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:21,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash -354529050, now seen corresponding path program 1 times [2023-12-22 00:00:21,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:21,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662585527] [2023-12-22 00:00:21,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:00:21,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:21,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:21,477 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:21,478 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 (19)] Waiting until timeout for monitored process [2023-12-22 00:00:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:00:21,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:00:21,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:22,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:00:23,081 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:23,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:23,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662585527] [2023-12-22 00:00:23,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662585527] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:00:23,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:00:23,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:00:23,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016885969] [2023-12-22 00:00:23,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:00:23,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:00:23,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:23,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:00:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:00:23,086 INFO L87 Difference]: Start difference. First operand 3260 states and 4554 transitions. Second operand has 26 states, 26 states have (on average 6.615384615384615) internal successors, (172), 25 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:25,317 INFO L93 Difference]: Finished difference Result 4090 states and 5590 transitions. [2023-12-22 00:00:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:00:25,318 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.615384615384615) internal successors, (172), 25 states have internal predecessors, (172), 0 states have call successors, (0), 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 92 [2023-12-22 00:00:25,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:25,324 INFO L225 Difference]: With dead ends: 4090 [2023-12-22 00:00:25,324 INFO L226 Difference]: Without dead ends: 3396 [2023-12-22 00:00:25,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:00:25,327 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 17859 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17859 SdHoareTripleChecker+Valid, 10616 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:25,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17859 Valid, 10616 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:00:25,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2023-12-22 00:00:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3260. [2023-12-22 00:00:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 3258 states have (on average 1.3928790669122162) internal successors, (4538), 3259 states have internal predecessors, (4538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:25,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 4538 transitions. [2023-12-22 00:00:25,412 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 4538 transitions. Word has length 92 [2023-12-22 00:00:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:25,412 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 4538 transitions. [2023-12-22 00:00:25,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.615384615384615) internal successors, (172), 25 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 4538 transitions. [2023-12-22 00:00:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 00:00:25,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:25,414 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:00:25,420 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:25,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:25,617 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:25,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:25,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1749922772, now seen corresponding path program 1 times [2023-12-22 00:00:25,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:25,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114137875] [2023-12-22 00:00:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:00:25,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:25,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:25,619 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:25,621 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 (20)] Waiting until timeout for monitored process [2023-12-22 00:00:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:00:25,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:00:25,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 13 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:27,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:00:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 13 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:27,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114137875] [2023-12-22 00:00:27,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114137875] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:00:27,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:00:27,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:00:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542765854] [2023-12-22 00:00:27,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:00:27,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:00:27,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:00:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:00:27,971 INFO L87 Difference]: Start difference. First operand 3260 states and 4538 transitions. Second operand has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 26 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:33,968 INFO L93 Difference]: Finished difference Result 4426 states and 5952 transitions. [2023-12-22 00:00:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:00:33,969 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 26 states have internal predecessors, (180), 0 states have call successors, (0), 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 93 [2023-12-22 00:00:33,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:33,974 INFO L225 Difference]: With dead ends: 4426 [2023-12-22 00:00:33,974 INFO L226 Difference]: Without dead ends: 3708 [2023-12-22 00:00:33,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:00:33,976 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 3374 mSDsluCounter, 23062 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3374 SdHoareTripleChecker+Valid, 24631 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:33,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3374 Valid, 24631 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 00:00:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2023-12-22 00:00:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 2650. [2023-12-22 00:00:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2648 states have (on average 1.4354229607250755) internal successors, (3801), 2649 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3801 transitions. [2023-12-22 00:00:34,065 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3801 transitions. Word has length 93 [2023-12-22 00:00:34,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:34,066 INFO L495 AbstractCegarLoop]: Abstraction has 2650 states and 3801 transitions. [2023-12-22 00:00:34,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 26 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3801 transitions. [2023-12-22 00:00:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 00:00:34,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:34,067 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:00:34,070 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 (20)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:34,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:34,268 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:34,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2104628344, now seen corresponding path program 1 times [2023-12-22 00:00:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19154242] [2023-12-22 00:00:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:00:34,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:34,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:34,270 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:34,272 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 (21)] Waiting until timeout for monitored process [2023-12-22 00:00:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:00:34,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:00:34,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 22 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:35,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:00:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 22 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:36,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:36,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19154242] [2023-12-22 00:00:36,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19154242] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:00:36,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:00:36,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:00:36,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903971526] [2023-12-22 00:00:36,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:00:36,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:00:36,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:36,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:00:36,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:00:36,125 INFO L87 Difference]: Start difference. First operand 2650 states and 3801 transitions. Second operand has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 26 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:42,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:42,008 INFO L93 Difference]: Finished difference Result 3545 states and 4884 transitions. [2023-12-22 00:00:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 00:00:42,009 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 26 states have internal predecessors, (175), 0 states have call successors, (0), 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 93 [2023-12-22 00:00:42,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:42,013 INFO L225 Difference]: With dead ends: 3545 [2023-12-22 00:00:42,013 INFO L226 Difference]: Without dead ends: 3263 [2023-12-22 00:00:42,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 00:00:42,014 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 3488 mSDsluCounter, 23216 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 24794 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:42,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 24794 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-22 00:00:42,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2023-12-22 00:00:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 2873. [2023-12-22 00:00:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2871 states have (on average 1.4158829676071056) internal successors, (4065), 2872 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4065 transitions. [2023-12-22 00:00:42,083 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4065 transitions. Word has length 93 [2023-12-22 00:00:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:42,083 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 4065 transitions. [2023-12-22 00:00:42,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 26 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4065 transitions. [2023-12-22 00:00:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 00:00:42,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:42,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:00:42,090 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 (21)] Ended with exit code 0 [2023-12-22 00:00:42,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:42,285 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:42,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash -404456876, now seen corresponding path program 1 times [2023-12-22 00:00:42,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:42,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587173476] [2023-12-22 00:00:42,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:00:42,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:42,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:42,287 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:42,288 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 (22)] Waiting until timeout for monitored process [2023-12-22 00:00:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:00:42,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:00:42,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:43,495 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 31 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:43,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:00:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 31 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:44,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587173476] [2023-12-22 00:00:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587173476] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:00:44,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:00:44,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:00:44,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863301181] [2023-12-22 00:00:44,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:00:44,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:00:44,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:44,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:00:44,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:00:44,003 INFO L87 Difference]: Start difference. First operand 2873 states and 4065 transitions. Second operand has 26 states, 26 states have (on average 6.538461538461538) internal successors, (170), 26 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:49,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:49,989 INFO L93 Difference]: Finished difference Result 5414 states and 7078 transitions. [2023-12-22 00:00:49,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:00:49,990 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.538461538461538) internal successors, (170), 26 states have internal predecessors, (170), 0 states have call successors, (0), 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 93 [2023-12-22 00:00:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:50,007 INFO L225 Difference]: With dead ends: 5414 [2023-12-22 00:00:50,007 INFO L226 Difference]: Without dead ends: 5031 [2023-12-22 00:00:50,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:00:50,011 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 6451 mSDsluCounter, 24885 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6451 SdHoareTripleChecker+Valid, 26479 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:50,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6451 Valid, 26479 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 00:00:50,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5031 states. [2023-12-22 00:00:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5031 to 4083. [2023-12-22 00:00:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 4081 states have (on average 1.346483704974271) internal successors, (5495), 4082 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 5495 transitions. [2023-12-22 00:00:50,219 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 5495 transitions. Word has length 93 [2023-12-22 00:00:50,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:50,219 INFO L495 AbstractCegarLoop]: Abstraction has 4083 states and 5495 transitions. [2023-12-22 00:00:50,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.538461538461538) internal successors, (170), 26 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 5495 transitions. [2023-12-22 00:00:50,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 00:00:50,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:50,222 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:00:50,240 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 (22)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:50,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:50,426 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:50,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1227951098, now seen corresponding path program 2 times [2023-12-22 00:00:50,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:50,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566453873] [2023-12-22 00:00:50,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:00:50,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:50,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:50,428 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:50,429 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 (23)] Waiting until timeout for monitored process [2023-12-22 00:00:50,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:00:50,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:00:50,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 00:00:50,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:50,914 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-22 00:00:50,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:00:50,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566453873] [2023-12-22 00:00:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566453873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:00:50,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:00:50,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 00:00:50,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672372201] [2023-12-22 00:00:50,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:00:50,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 00:00:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:50,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 00:00:50,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:00:50,916 INFO L87 Difference]: Start difference. First operand 4083 states and 5495 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2023-12-22 00:00:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:51,114 INFO L93 Difference]: Finished difference Result 5017 states and 6671 transitions. [2023-12-22 00:00:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 00:00:51,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 130 [2023-12-22 00:00:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:51,125 INFO L225 Difference]: With dead ends: 5017 [2023-12-22 00:00:51,125 INFO L226 Difference]: Without dead ends: 4209 [2023-12-22 00:00:51,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:00:51,127 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 2976 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:51,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 3086 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:00:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2023-12-22 00:00:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4073. [2023-12-22 00:00:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4073 states, 4071 states have (on average 1.337509211495947) internal successors, (5445), 4072 states have internal predecessors, (5445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 5445 transitions. [2023-12-22 00:00:51,280 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 5445 transitions. Word has length 130 [2023-12-22 00:00:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:51,280 INFO L495 AbstractCegarLoop]: Abstraction has 4073 states and 5445 transitions. [2023-12-22 00:00:51,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2023-12-22 00:00:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 5445 transitions. [2023-12-22 00:00:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 00:00:51,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:51,283 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:00:51,294 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 (23)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:51,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:51,486 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:51,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1582656670, now seen corresponding path program 2 times [2023-12-22 00:00:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:51,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707893534] [2023-12-22 00:00:51,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:00:51,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:51,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:51,488 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:51,489 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 (24)] Waiting until timeout for monitored process [2023-12-22 00:00:51,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:00:51,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:00:51,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 00:00:51,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-12-22 00:00:52,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:00:52,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:52,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707893534] [2023-12-22 00:00:52,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707893534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:00:52,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:00:52,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 00:00:52,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318791753] [2023-12-22 00:00:52,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:00:52,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 00:00:52,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 00:00:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:00:52,019 INFO L87 Difference]: Start difference. First operand 4073 states and 5445 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:52,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:52,230 INFO L93 Difference]: Finished difference Result 4642 states and 6181 transitions. [2023-12-22 00:00:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 00:00:52,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 130 [2023-12-22 00:00:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:52,236 INFO L225 Difference]: With dead ends: 4642 [2023-12-22 00:00:52,236 INFO L226 Difference]: Without dead ends: 4313 [2023-12-22 00:00:52,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:00:52,237 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 2967 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:52,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 3098 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:00:52,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2023-12-22 00:00:52,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4245. [2023-12-22 00:00:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4245 states, 4243 states have (on average 1.328305444261136) internal successors, (5636), 4244 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:52,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4245 states to 4245 states and 5636 transitions. [2023-12-22 00:00:52,377 INFO L78 Accepts]: Start accepts. Automaton has 4245 states and 5636 transitions. Word has length 130 [2023-12-22 00:00:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:52,377 INFO L495 AbstractCegarLoop]: Abstraction has 4245 states and 5636 transitions. [2023-12-22 00:00:52,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 4245 states and 5636 transitions. [2023-12-22 00:00:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 00:00:52,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:52,381 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:00:52,386 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:52,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:52,584 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:52,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash -926428550, now seen corresponding path program 2 times [2023-12-22 00:00:52,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:52,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996474906] [2023-12-22 00:00:52,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:00:52,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:52,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:52,586 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:52,587 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 (25)] Waiting until timeout for monitored process [2023-12-22 00:00:52,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:00:52,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:00:52,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 00:00:52,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-12-22 00:00:53,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:00:53,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:53,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996474906] [2023-12-22 00:00:53,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996474906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:00:53,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:00:53,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 00:00:53,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868619438] [2023-12-22 00:00:53,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:00:53,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 00:00:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 00:00:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:00:53,081 INFO L87 Difference]: Start difference. First operand 4245 states and 5636 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:00:53,312 INFO L93 Difference]: Finished difference Result 4832 states and 6393 transitions. [2023-12-22 00:00:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 00:00:53,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 130 [2023-12-22 00:00:53,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:00:53,318 INFO L225 Difference]: With dead ends: 4832 [2023-12-22 00:00:53,319 INFO L226 Difference]: Without dead ends: 4491 [2023-12-22 00:00:53,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-22 00:00:53,320 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 2962 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:00:53,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2962 Valid, 3102 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:00:53,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4491 states. [2023-12-22 00:00:53,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4491 to 4423. [2023-12-22 00:00:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 4421 states have (on average 1.319610947749378) internal successors, (5834), 4422 states have internal predecessors, (5834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 5834 transitions. [2023-12-22 00:00:53,467 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 5834 transitions. Word has length 130 [2023-12-22 00:00:53,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:00:53,467 INFO L495 AbstractCegarLoop]: Abstraction has 4423 states and 5834 transitions. [2023-12-22 00:00:53,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:00:53,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 5834 transitions. [2023-12-22 00:00:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 00:00:53,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:00:53,470 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:00:53,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 00:00:53,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:53,673 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:00:53,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:00:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1193260010, now seen corresponding path program 1 times [2023-12-22 00:00:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:00:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543600529] [2023-12-22 00:00:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:00:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:00:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:00:53,675 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:00:53,677 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 (26)] Waiting until timeout for monitored process [2023-12-22 00:00:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:00:53,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-22 00:00:53,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:00:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 54 proven. 163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:55,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:00:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 54 proven. 163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:00:56,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:00:56,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543600529] [2023-12-22 00:00:56,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543600529] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:00:56,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:00:56,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-22 00:00:56,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243805056] [2023-12-22 00:00:56,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:00:56,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-22 00:00:56,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:00:56,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-22 00:00:56,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1006, Unknown=0, NotChecked=0, Total=1122 [2023-12-22 00:00:56,155 INFO L87 Difference]: Start difference. First operand 4423 states and 5834 transitions. Second operand has 34 states, 34 states have (on average 7.176470588235294) internal successors, (244), 34 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:01:11,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:01:11,473 INFO L93 Difference]: Finished difference Result 5946 states and 7638 transitions. [2023-12-22 00:01:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-12-22 00:01:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.176470588235294) internal successors, (244), 34 states have internal predecessors, (244), 0 states have call successors, (0), 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 131 [2023-12-22 00:01:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:01:11,478 INFO L225 Difference]: With dead ends: 5946 [2023-12-22 00:01:11,478 INFO L226 Difference]: Without dead ends: 4864 [2023-12-22 00:01:11,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7456 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=3247, Invalid=20933, Unknown=0, NotChecked=0, Total=24180 [2023-12-22 00:01:11,484 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 28566 mSDsluCounter, 15505 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28566 SdHoareTripleChecker+Valid, 17124 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:01:11,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28566 Valid, 17124 Invalid, 2821 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-22 00:01:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2023-12-22 00:01:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 4643. [2023-12-22 00:01:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4641 states have (on average 1.3113553113553114) internal successors, (6086), 4642 states have internal predecessors, (6086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:01:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6086 transitions. [2023-12-22 00:01:11,649 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6086 transitions. Word has length 131 [2023-12-22 00:01:11,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:01:11,649 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 6086 transitions. [2023-12-22 00:01:11,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.176470588235294) internal successors, (244), 34 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:01:11,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6086 transitions. [2023-12-22 00:01:11,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 00:01:11,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:01:11,652 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:01:11,659 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 (26)] Forceful destruction successful, exit code 0 [2023-12-22 00:01:11,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:01:11,856 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:01:11,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:01:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1665490502, now seen corresponding path program 1 times [2023-12-22 00:01:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:01:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838173480] [2023-12-22 00:01:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:01:11,857 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 [2023-12-22 00:01:11,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:01:11,858 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:01:11,863 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 (27)] Waiting until timeout for monitored process [2023-12-22 00:01:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:01:11,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-22 00:01:11,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:01:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 130 proven. 50 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-22 00:01:13,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:01:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 61 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:01:16,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:01:16,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838173480] [2023-12-22 00:01:16,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838173480] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:01:16,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:01:16,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 39 [2023-12-22 00:01:16,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299317983] [2023-12-22 00:01:16,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:01:16,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-22 00:01:16,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:01:16,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-22 00:01:16,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1318, Unknown=0, NotChecked=0, Total=1482 [2023-12-22 00:01:16,455 INFO L87 Difference]: Start difference. First operand 4643 states and 6086 transitions. Second operand has 39 states, 39 states have (on average 5.82051282051282) internal successors, (227), 39 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:02:54,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:02:54,234 INFO L93 Difference]: Finished difference Result 9668 states and 11929 transitions. [2023-12-22 00:02:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 304 states. [2023-12-22 00:02:54,236 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.82051282051282) internal successors, (227), 39 states have internal predecessors, (227), 0 states have call successors, (0), 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 131 [2023-12-22 00:02:54,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:02:54,242 INFO L225 Difference]: With dead ends: 9668 [2023-12-22 00:02:54,243 INFO L226 Difference]: Without dead ends: 7390 [2023-12-22 00:02:54,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47295 ImplicationChecksByTransitivity, 87.4s TimeCoverageRelationStatistics Valid=12461, Invalid=99429, Unknown=0, NotChecked=0, Total=111890 [2023-12-22 00:02:54,253 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 26177 mSDsluCounter, 20735 mSDsCounter, 0 mSdLazyCounter, 3894 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26177 SdHoareTripleChecker+Valid, 22353 SdHoareTripleChecker+Invalid, 4091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:02:54,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26177 Valid, 22353 Invalid, 4091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [197 Valid, 3894 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-22 00:02:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7390 states. [2023-12-22 00:02:54,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7390 to 5608. [2023-12-22 00:02:54,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5608 states, 5606 states have (on average 1.286300392436675) internal successors, (7211), 5607 states have internal predecessors, (7211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:02:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 7211 transitions. [2023-12-22 00:02:54,508 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 7211 transitions. Word has length 131 [2023-12-22 00:02:54,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:02:54,509 INFO L495 AbstractCegarLoop]: Abstraction has 5608 states and 7211 transitions. [2023-12-22 00:02:54,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.82051282051282) internal successors, (227), 39 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:02:54,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 7211 transitions. [2023-12-22 00:02:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 00:02:54,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:02:54,511 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:02:54,515 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 (27)] Forceful destruction successful, exit code 0 [2023-12-22 00:02:54,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:02:54,715 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:02:54,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:02:54,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1352847420, now seen corresponding path program 1 times [2023-12-22 00:02:54,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:02:54,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391551936] [2023-12-22 00:02:54,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:02:54,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:02:54,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:02:54,717 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:02:54,718 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 (28)] Waiting until timeout for monitored process [2023-12-22 00:02:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:02:54,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-22 00:02:54,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:02:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 127 proven. 68 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-22 00:02:56,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:02:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 127 proven. 68 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-22 00:02:58,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:02:58,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391551936] [2023-12-22 00:02:58,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391551936] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:02:58,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:02:58,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-22 00:02:58,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585346408] [2023-12-22 00:02:58,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:02:58,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-22 00:02:58,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:02:58,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-22 00:02:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2023-12-22 00:02:58,458 INFO L87 Difference]: Start difference. First operand 5608 states and 7211 transitions. Second operand has 34 states, 34 states have (on average 6.029411764705882) internal successors, (205), 34 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:03:47,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:03:47,657 INFO L93 Difference]: Finished difference Result 9807 states and 12130 transitions. [2023-12-22 00:03:47,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-12-22 00:03:47,658 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.029411764705882) internal successors, (205), 34 states have internal predecessors, (205), 0 states have call successors, (0), 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 132 [2023-12-22 00:03:47,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:03:47,668 INFO L225 Difference]: With dead ends: 9807 [2023-12-22 00:03:47,668 INFO L226 Difference]: Without dead ends: 8668 [2023-12-22 00:03:47,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14587 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=5810, Invalid=31246, Unknown=0, NotChecked=0, Total=37056 [2023-12-22 00:03:47,672 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 23596 mSDsluCounter, 16963 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23596 SdHoareTripleChecker+Valid, 18567 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:03:47,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23596 Valid, 18567 Invalid, 2421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [130 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-22 00:03:47,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2023-12-22 00:03:48,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 7390. [2023-12-22 00:03:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7390 states, 7388 states have (on average 1.2566323768272876) internal successors, (9284), 7389 states have internal predecessors, (9284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:03:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 9284 transitions. [2023-12-22 00:03:48,083 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 9284 transitions. Word has length 132 [2023-12-22 00:03:48,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:03:48,084 INFO L495 AbstractCegarLoop]: Abstraction has 7390 states and 9284 transitions. [2023-12-22 00:03:48,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.029411764705882) internal successors, (205), 34 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:03:48,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 9284 transitions. [2023-12-22 00:03:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 00:03:48,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:03:48,086 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:03:48,092 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 (28)] Forceful destruction successful, exit code 0 [2023-12-22 00:03:48,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:03:48,290 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:03:48,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:03:48,291 INFO L85 PathProgramCache]: Analyzing trace with hash 250812344, now seen corresponding path program 1 times [2023-12-22 00:03:48,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:03:48,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859645755] [2023-12-22 00:03:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:03:48,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:03:48,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:03:48,292 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:03:48,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 00:03:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:03:48,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-22 00:03:48,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:03:50,194 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 129 proven. 59 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 00:03:50,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:03:51,588 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 129 proven. 59 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 00:03:51,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:03:51,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859645755] [2023-12-22 00:03:51,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859645755] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:03:51,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:03:51,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-22 00:03:51,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302014231] [2023-12-22 00:03:51,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:03:51,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-22 00:03:51,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:03:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-22 00:03:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2023-12-22 00:03:51,590 INFO L87 Difference]: Start difference. First operand 7390 states and 9284 transitions. Second operand has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:04:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:04:45,666 INFO L93 Difference]: Finished difference Result 12326 states and 15139 transitions. [2023-12-22 00:04:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-22 00:04:45,666 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 0 states have call successors, (0), 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 132 [2023-12-22 00:04:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:04:45,674 INFO L225 Difference]: With dead ends: 12326 [2023-12-22 00:04:45,674 INFO L226 Difference]: Without dead ends: 10255 [2023-12-22 00:04:45,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19475 ImplicationChecksByTransitivity, 49.2s TimeCoverageRelationStatistics Valid=7234, Invalid=42272, Unknown=0, NotChecked=0, Total=49506 [2023-12-22 00:04:45,679 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 19684 mSDsluCounter, 15271 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19684 SdHoareTripleChecker+Valid, 16862 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:04:45,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19684 Valid, 16862 Invalid, 2104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-22 00:04:45,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2023-12-22 00:04:46,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 8445. [2023-12-22 00:04:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8445 states, 8443 states have (on average 1.2478976667061472) internal successors, (10536), 8444 states have internal predecessors, (10536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:04:46,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8445 states to 8445 states and 10536 transitions. [2023-12-22 00:04:46,130 INFO L78 Accepts]: Start accepts. Automaton has 8445 states and 10536 transitions. Word has length 132 [2023-12-22 00:04:46,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:04:46,130 INFO L495 AbstractCegarLoop]: Abstraction has 8445 states and 10536 transitions. [2023-12-22 00:04:46,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:04:46,131 INFO L276 IsEmpty]: Start isEmpty. Operand 8445 states and 10536 transitions. [2023-12-22 00:04:46,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-22 00:04:46,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:04:46,133 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:04:46,143 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 (29)] Forceful destruction successful, exit code 0 [2023-12-22 00:04:46,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:04:46,337 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:04:46,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:04:46,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1010440518, now seen corresponding path program 1 times [2023-12-22 00:04:46,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:04:46,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651368084] [2023-12-22 00:04:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:04:46,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:04:46,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:04:46,339 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:04:46,341 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 (30)] Waiting until timeout for monitored process [2023-12-22 00:04:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:04:46,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:04:46,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:04:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 15 proven. 185 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 00:04:46,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:04:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 15 proven. 185 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 00:04:46,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:04:46,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651368084] [2023-12-22 00:04:46,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651368084] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:04:46,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:04:46,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-22 00:04:46,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92100208] [2023-12-22 00:04:46,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:04:46,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 00:04:46,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:04:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 00:04:46,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-22 00:04:46,820 INFO L87 Difference]: Start difference. First operand 8445 states and 10536 transitions. Second operand has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:04:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:04:49,689 INFO L93 Difference]: Finished difference Result 45940 states and 55487 transitions. [2023-12-22 00:04:49,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-22 00:04:49,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 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 134 [2023-12-22 00:04:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:04:49,737 INFO L225 Difference]: With dead ends: 45940 [2023-12-22 00:04:49,738 INFO L226 Difference]: Without dead ends: 39584 [2023-12-22 00:04:49,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-12-22 00:04:49,747 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 3150 mSDsluCounter, 9368 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 10934 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:04:49,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3150 Valid, 10934 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:04:49,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39584 states. [2023-12-22 00:04:52,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39584 to 39352. [2023-12-22 00:04:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39352 states, 39350 states have (on average 1.161473951715375) internal successors, (45704), 39351 states have internal predecessors, (45704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:04:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39352 states to 39352 states and 45704 transitions. [2023-12-22 00:04:52,290 INFO L78 Accepts]: Start accepts. Automaton has 39352 states and 45704 transitions. Word has length 134 [2023-12-22 00:04:52,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:04:52,291 INFO L495 AbstractCegarLoop]: Abstraction has 39352 states and 45704 transitions. [2023-12-22 00:04:52,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:04:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 39352 states and 45704 transitions. [2023-12-22 00:04:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-22 00:04:52,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:04:52,294 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:04:52,298 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 (30)] Forceful destruction successful, exit code 0 [2023-12-22 00:04:52,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:04:52,498 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:04:52,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:04:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash -947984861, now seen corresponding path program 1 times [2023-12-22 00:04:52,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:04:52,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231498350] [2023-12-22 00:04:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:04:52,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:04:52,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:04:52,500 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:04:52,501 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 (31)] Waiting until timeout for monitored process [2023-12-22 00:04:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:04:52,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:04:52,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:04:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:04:52,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:04:52,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:04:52,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231498350] [2023-12-22 00:04:52,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231498350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:04:52,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:04:52,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:04:52,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423840496] [2023-12-22 00:04:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:04:52,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:04:52,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:04:52,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:04:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:04:52,670 INFO L87 Difference]: Start difference. First operand 39352 states and 45704 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:36,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:05:36,940 INFO L93 Difference]: Finished difference Result 42360 states and 50536 transitions. [2023-12-22 00:05:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:05:36,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2023-12-22 00:05:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:05:36,986 INFO L225 Difference]: With dead ends: 42360 [2023-12-22 00:05:36,986 INFO L226 Difference]: Without dead ends: 40856 [2023-12-22 00:05:36,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:05:36,996 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 986 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:05:36,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 413 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 41.2s Time] [2023-12-22 00:05:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40856 states. [2023-12-22 00:05:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40856 to 40854. [2023-12-22 00:05:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40854 states, 40852 states have (on average 1.1670175266816802) internal successors, (47675), 40853 states have internal predecessors, (47675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40854 states to 40854 states and 47675 transitions. [2023-12-22 00:05:39,532 INFO L78 Accepts]: Start accepts. Automaton has 40854 states and 47675 transitions. Word has length 134 [2023-12-22 00:05:39,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:05:39,532 INFO L495 AbstractCegarLoop]: Abstraction has 40854 states and 47675 transitions. [2023-12-22 00:05:39,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 40854 states and 47675 transitions. [2023-12-22 00:05:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 00:05:39,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:05:39,536 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:05:39,542 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 (31)] Forceful destruction successful, exit code 0 [2023-12-22 00:05:39,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:05:39,740 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:05:39,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:05:39,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1831804296, now seen corresponding path program 1 times [2023-12-22 00:05:39,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:05:39,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024829063] [2023-12-22 00:05:39,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:05:39,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:05:39,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:05:39,742 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:05:39,743 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 (32)] Waiting until timeout for monitored process [2023-12-22 00:05:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:05:39,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-22 00:05:39,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:05:41,339 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 32 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:05:41,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:05:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 32 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:05:42,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:05:42,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024829063] [2023-12-22 00:05:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024829063] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:05:42,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:05:42,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-22 00:05:42,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453019184] [2023-12-22 00:05:42,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:05:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-22 00:05:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:05:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-22 00:05:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2023-12-22 00:05:42,290 INFO L87 Difference]: Start difference. First operand 40854 states and 47675 transitions. Second operand has 34 states, 34 states have (on average 7.676470588235294) internal successors, (261), 34 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:05:49,016 INFO L93 Difference]: Finished difference Result 59872 states and 69963 transitions. [2023-12-22 00:05:49,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:05:49,017 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.676470588235294) internal successors, (261), 34 states have internal predecessors, (261), 0 states have call successors, (0), 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 135 [2023-12-22 00:05:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:05:49,058 INFO L225 Difference]: With dead ends: 59872 [2023-12-22 00:05:49,058 INFO L226 Difference]: Without dead ends: 35384 [2023-12-22 00:05:49,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=914, Invalid=5248, Unknown=0, NotChecked=0, Total=6162 [2023-12-22 00:05:49,080 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 20686 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20686 SdHoareTripleChecker+Valid, 15239 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:05:49,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20686 Valid, 15239 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 00:05:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35384 states. [2023-12-22 00:05:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35384 to 27970. [2023-12-22 00:05:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27970 states, 27968 states have (on average 1.1666547482837528) internal successors, (32629), 27969 states have internal predecessors, (32629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27970 states to 27970 states and 32629 transitions. [2023-12-22 00:05:51,298 INFO L78 Accepts]: Start accepts. Automaton has 27970 states and 32629 transitions. Word has length 135 [2023-12-22 00:05:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:05:51,298 INFO L495 AbstractCegarLoop]: Abstraction has 27970 states and 32629 transitions. [2023-12-22 00:05:51,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.676470588235294) internal successors, (261), 34 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 27970 states and 32629 transitions. [2023-12-22 00:05:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 00:05:51,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:05:51,301 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:05:51,308 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 (32)] Ended with exit code 0 [2023-12-22 00:05:51,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:05:51,505 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:05:51,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:05:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash 583808984, now seen corresponding path program 1 times [2023-12-22 00:05:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:05:51,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093919441] [2023-12-22 00:05:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:05:51,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:05:51,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:05:51,507 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:05:51,508 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 (33)] Waiting until timeout for monitored process [2023-12-22 00:05:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:05:51,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-22 00:05:51,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:05:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 48 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:05:52,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:05:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 48 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:05:53,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:05:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093919441] [2023-12-22 00:05:53,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093919441] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:05:53,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:05:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-22 00:05:53,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973495245] [2023-12-22 00:05:53,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:05:53,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-22 00:05:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:05:53,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-22 00:05:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2023-12-22 00:05:53,720 INFO L87 Difference]: Start difference. First operand 27970 states and 32629 transitions. Second operand has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:05:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:05:59,099 INFO L93 Difference]: Finished difference Result 32920 states and 38281 transitions. [2023-12-22 00:05:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-22 00:05:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 0 states have call successors, (0), 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 135 [2023-12-22 00:05:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:05:59,119 INFO L225 Difference]: With dead ends: 32920 [2023-12-22 00:05:59,120 INFO L226 Difference]: Without dead ends: 19298 [2023-12-22 00:05:59,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=884, Invalid=4816, Unknown=0, NotChecked=0, Total=5700 [2023-12-22 00:05:59,131 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 25108 mSDsluCounter, 11700 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25108 SdHoareTripleChecker+Valid, 13241 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:05:59,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25108 Valid, 13241 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-22 00:05:59,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19298 states. [2023-12-22 00:06:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19298 to 12101. [2023-12-22 00:06:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12101 states, 12099 states have (on average 1.1835688899909083) internal successors, (14320), 12100 states have internal predecessors, (14320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:06:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12101 states to 12101 states and 14320 transitions. [2023-12-22 00:06:00,028 INFO L78 Accepts]: Start accepts. Automaton has 12101 states and 14320 transitions. Word has length 135 [2023-12-22 00:06:00,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:06:00,028 INFO L495 AbstractCegarLoop]: Abstraction has 12101 states and 14320 transitions. [2023-12-22 00:06:00,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.529411764705882) internal successors, (256), 34 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:06:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 12101 states and 14320 transitions. [2023-12-22 00:06:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:06:00,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:06:00,031 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:06:00,035 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 (33)] Ended with exit code 0 [2023-12-22 00:06:00,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:06:00,231 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:06:00,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:06:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1576950994, now seen corresponding path program 1 times [2023-12-22 00:06:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:06:00,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84179115] [2023-12-22 00:06:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:06:00,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:06:00,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:06:00,233 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:06:00,234 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 (34)] Waiting until timeout for monitored process [2023-12-22 00:06:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:06:00,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-22 00:06:00,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:06:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 134 proven. 68 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-22 00:06:04,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:06:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 134 proven. 68 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-22 00:06:06,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:06:06,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84179115] [2023-12-22 00:06:06,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84179115] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:06:06,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:06:06,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19] total 41 [2023-12-22 00:06:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503909047] [2023-12-22 00:06:06,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:06:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-22 00:06:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:06:06,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-22 00:06:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1490, Unknown=0, NotChecked=0, Total=1640 [2023-12-22 00:06:06,756 INFO L87 Difference]: Start difference. First operand 12101 states and 14320 transitions. Second operand has 41 states, 41 states have (on average 5.073170731707317) internal successors, (208), 41 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:07:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:07:16,922 INFO L93 Difference]: Finished difference Result 22092 states and 25143 transitions. [2023-12-22 00:07:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2023-12-22 00:07:16,925 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 5.073170731707317) internal successors, (208), 41 states have internal predecessors, (208), 0 states have call successors, (0), 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 136 [2023-12-22 00:07:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:07:16,940 INFO L225 Difference]: With dead ends: 22092 [2023-12-22 00:07:16,940 INFO L226 Difference]: Without dead ends: 15209 [2023-12-22 00:07:16,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11221 ImplicationChecksByTransitivity, 56.3s TimeCoverageRelationStatistics Valid=4356, Invalid=28586, Unknown=0, NotChecked=0, Total=32942 [2023-12-22 00:07:16,945 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 13736 mSDsluCounter, 31514 mSDsCounter, 0 mSdLazyCounter, 3620 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13736 SdHoareTripleChecker+Valid, 33088 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 3620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:07:16,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13736 Valid, 33088 Invalid, 3770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 3620 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-22 00:07:16,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15209 states. [2023-12-22 00:07:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15209 to 12984. [2023-12-22 00:07:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12984 states, 12982 states have (on average 1.17531967339393) internal successors, (15258), 12983 states have internal predecessors, (15258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:07:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12984 states to 12984 states and 15258 transitions. [2023-12-22 00:07:17,812 INFO L78 Accepts]: Start accepts. Automaton has 12984 states and 15258 transitions. Word has length 136 [2023-12-22 00:07:17,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:07:17,813 INFO L495 AbstractCegarLoop]: Abstraction has 12984 states and 15258 transitions. [2023-12-22 00:07:17,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.073170731707317) internal successors, (208), 41 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:07:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 12984 states and 15258 transitions. [2023-12-22 00:07:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:07:17,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:07:17,815 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:07:17,819 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 (34)] Forceful destruction successful, exit code 0 [2023-12-22 00:07:18,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:07:18,016 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:07:18,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:07:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1927063314, now seen corresponding path program 1 times [2023-12-22 00:07:18,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:07:18,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574306585] [2023-12-22 00:07:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:07:18,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:07:18,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:07:18,018 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:07:18,019 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 (35)] Waiting until timeout for monitored process [2023-12-22 00:07:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:07:18,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-22 00:07:18,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:07:20,579 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 138 proven. 50 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-22 00:07:20,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:07:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 66 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:07:23,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:07:23,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574306585] [2023-12-22 00:07:23,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574306585] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:07:23,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:07:23,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 43 [2023-12-22 00:07:23,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780502609] [2023-12-22 00:07:23,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:07:23,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-22 00:07:23,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:07:23,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-22 00:07:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1607, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:07:23,030 INFO L87 Difference]: Start difference. First operand 12984 states and 15258 transitions. Second operand has 43 states, 43 states have (on average 5.255813953488372) internal successors, (226), 43 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:08:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:08:07,649 INFO L93 Difference]: Finished difference Result 21315 states and 24263 transitions. [2023-12-22 00:08:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-22 00:08:07,651 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.255813953488372) internal successors, (226), 43 states have internal predecessors, (226), 0 states have call successors, (0), 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 136 [2023-12-22 00:08:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:08:07,669 INFO L225 Difference]: With dead ends: 21315 [2023-12-22 00:08:07,670 INFO L226 Difference]: Without dead ends: 19624 [2023-12-22 00:08:07,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18420 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=5291, Invalid=46011, Unknown=0, NotChecked=0, Total=51302 [2023-12-22 00:08:07,677 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 29949 mSDsluCounter, 24421 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29949 SdHoareTripleChecker+Valid, 26028 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:08:07,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29949 Valid, 26028 Invalid, 3135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [148 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-22 00:08:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19624 states. [2023-12-22 00:08:08,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19624 to 16013. [2023-12-22 00:08:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16013 states, 16011 states have (on average 1.1552057960152395) internal successors, (18496), 16012 states have internal predecessors, (18496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:08:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16013 states to 16013 states and 18496 transitions. [2023-12-22 00:08:09,008 INFO L78 Accepts]: Start accepts. Automaton has 16013 states and 18496 transitions. Word has length 136 [2023-12-22 00:08:09,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:08:09,008 INFO L495 AbstractCegarLoop]: Abstraction has 16013 states and 18496 transitions. [2023-12-22 00:08:09,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.255813953488372) internal successors, (226), 43 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:08:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 16013 states and 18496 transitions. [2023-12-22 00:08:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:08:09,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:08:09,011 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:08:09,019 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 (35)] Ended with exit code 0 [2023-12-22 00:08:09,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:08:09,211 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:08:09,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:08:09,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1071444826, now seen corresponding path program 1 times [2023-12-22 00:08:09,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:08:09,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894469965] [2023-12-22 00:08:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:08:09,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:08:09,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:08:09,213 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:08:09,214 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 (36)] Waiting until timeout for monitored process [2023-12-22 00:08:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:08:09,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:08:09,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:08:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 138 proven. 65 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 00:08:10,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:08:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 135 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 00:08:11,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:08:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894469965] [2023-12-22 00:08:11,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894469965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:08:11,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:08:11,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2023-12-22 00:08:11,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635022253] [2023-12-22 00:08:11,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:08:11,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-22 00:08:11,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:08:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-22 00:08:11,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2023-12-22 00:08:11,184 INFO L87 Difference]: Start difference. First operand 16013 states and 18496 transitions. Second operand has 24 states, 24 states have (on average 8.75) internal successors, (210), 24 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:08:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:08:14,297 INFO L93 Difference]: Finished difference Result 19374 states and 22112 transitions. [2023-12-22 00:08:14,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-22 00:08:14,298 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.75) internal successors, (210), 24 states have internal predecessors, (210), 0 states have call successors, (0), 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 136 [2023-12-22 00:08:14,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:08:14,310 INFO L225 Difference]: With dead ends: 19374 [2023-12-22 00:08:14,310 INFO L226 Difference]: Without dead ends: 13325 [2023-12-22 00:08:14,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=479, Invalid=1591, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:08:14,314 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 10317 mSDsluCounter, 6535 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10317 SdHoareTripleChecker+Valid, 8059 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:08:14,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10317 Valid, 8059 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 00:08:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13325 states. [2023-12-22 00:08:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13325 to 11232. [2023-12-22 00:08:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11232 states, 11230 states have (on average 1.175779162956367) internal successors, (13204), 11231 states have internal predecessors, (13204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:08:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11232 states to 11232 states and 13204 transitions. [2023-12-22 00:08:15,176 INFO L78 Accepts]: Start accepts. Automaton has 11232 states and 13204 transitions. Word has length 136 [2023-12-22 00:08:15,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:08:15,176 INFO L495 AbstractCegarLoop]: Abstraction has 11232 states and 13204 transitions. [2023-12-22 00:08:15,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.75) internal successors, (210), 24 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:08:15,176 INFO L276 IsEmpty]: Start isEmpty. Operand 11232 states and 13204 transitions. [2023-12-22 00:08:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:08:15,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:08:15,178 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 00:08:15,185 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 (36)] Ended with exit code 0 [2023-12-22 00:08:15,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:08:15,379 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:08:15,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:08:15,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1758383090, now seen corresponding path program 1 times [2023-12-22 00:08:15,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:08:15,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710784582] [2023-12-22 00:08:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:08:15,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:08:15,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:08:15,381 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:08:15,383 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 (37)] Waiting until timeout for monitored process [2023-12-22 00:08:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:08:15,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-22 00:08:15,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:08:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 134 proven. 69 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 00:08:18,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:08:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 32 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:08:20,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:08:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710784582] [2023-12-22 00:08:20,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710784582] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:08:20,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:08:20,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 44 [2023-12-22 00:08:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045664324] [2023-12-22 00:08:20,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:08:20,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:08:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:08:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:08:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1694, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:08:20,929 INFO L87 Difference]: Start difference. First operand 11232 states and 13204 transitions. Second operand has 44 states, 44 states have (on average 5.636363636363637) internal successors, (248), 44 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:09:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:09:13,936 INFO L93 Difference]: Finished difference Result 16071 states and 18330 transitions. [2023-12-22 00:09:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2023-12-22 00:09:13,937 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 5.636363636363637) internal successors, (248), 44 states have internal predecessors, (248), 0 states have call successors, (0), 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 136 [2023-12-22 00:09:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:09:13,948 INFO L225 Difference]: With dead ends: 16071 [2023-12-22 00:09:13,948 INFO L226 Difference]: Without dead ends: 11368 [2023-12-22 00:09:13,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20198 ImplicationChecksByTransitivity, 44.9s TimeCoverageRelationStatistics Valid=5748, Invalid=50184, Unknown=0, NotChecked=0, Total=55932 [2023-12-22 00:09:13,953 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 29638 mSDsluCounter, 16106 mSDsCounter, 0 mSdLazyCounter, 3876 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29638 SdHoareTripleChecker+Valid, 17703 SdHoareTripleChecker+Invalid, 4044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 3876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:09:13,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29638 Valid, 17703 Invalid, 4044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [168 Valid, 3876 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-12-22 00:09:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11368 states. [2023-12-22 00:09:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11368 to 8588. [2023-12-22 00:09:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8586 states have (on average 1.2000931749359423) internal successors, (10304), 8587 states have internal predecessors, (10304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:09:14,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 10304 transitions. [2023-12-22 00:09:14,619 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 10304 transitions. Word has length 136 [2023-12-22 00:09:14,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:09:14,619 INFO L495 AbstractCegarLoop]: Abstraction has 8588 states and 10304 transitions. [2023-12-22 00:09:14,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 5.636363636363637) internal successors, (248), 44 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:09:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 10304 transitions. [2023-12-22 00:09:14,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 00:09:14,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:09:14,620 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:09:14,624 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 (37)] Ended with exit code 0 [2023-12-22 00:09:14,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:09:14,821 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:09:14,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:09:14,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2137228912, now seen corresponding path program 2 times [2023-12-22 00:09:14,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:09:14,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012663243] [2023-12-22 00:09:14,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:09:14,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:09:14,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:09:14,823 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:09:14,824 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 (38)] Waiting until timeout for monitored process [2023-12-22 00:09:14,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:09:14,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:09:14,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-22 00:09:14,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:09:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 137 proven. 59 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-22 00:09:16,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:09:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 39 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:09:20,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:09:20,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012663243] [2023-12-22 00:09:20,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012663243] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:09:20,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:09:20,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26] total 47 [2023-12-22 00:09:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180813079] [2023-12-22 00:09:20,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:09:20,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-22 00:09:20,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:09:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-22 00:09:20,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1903, Unknown=0, NotChecked=0, Total=2162 [2023-12-22 00:09:20,340 INFO L87 Difference]: Start difference. First operand 8588 states and 10304 transitions. Second operand has 47 states, 47 states have (on average 5.170212765957447) internal successors, (243), 47 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:10:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:10:03,006 INFO L93 Difference]: Finished difference Result 14168 states and 16197 transitions. [2023-12-22 00:10:03,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2023-12-22 00:10:03,007 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.170212765957447) internal successors, (243), 47 states have internal predecessors, (243), 0 states have call successors, (0), 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 137 [2023-12-22 00:10:03,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:10:03,018 INFO L225 Difference]: With dead ends: 14168 [2023-12-22 00:10:03,018 INFO L226 Difference]: Without dead ends: 11778 [2023-12-22 00:10:03,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18817 ImplicationChecksByTransitivity, 38.6s TimeCoverageRelationStatistics Valid=5499, Invalid=44901, Unknown=0, NotChecked=0, Total=50400 [2023-12-22 00:10:03,024 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 26367 mSDsluCounter, 19682 mSDsCounter, 0 mSdLazyCounter, 3394 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26367 SdHoareTripleChecker+Valid, 21215 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 3394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:10:03,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26367 Valid, 21215 Invalid, 3577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [183 Valid, 3394 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-22 00:10:03,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11778 states. [2023-12-22 00:10:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11778 to 8741. [2023-12-22 00:10:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8741 states, 8739 states have (on average 1.195445703169699) internal successors, (10447), 8740 states have internal predecessors, (10447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:10:03,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8741 states to 8741 states and 10447 transitions. [2023-12-22 00:10:03,690 INFO L78 Accepts]: Start accepts. Automaton has 8741 states and 10447 transitions. Word has length 137 [2023-12-22 00:10:03,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:10:03,690 INFO L495 AbstractCegarLoop]: Abstraction has 8741 states and 10447 transitions. [2023-12-22 00:10:03,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.170212765957447) internal successors, (243), 47 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:10:03,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8741 states and 10447 transitions. [2023-12-22 00:10:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 00:10:03,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:10:03,692 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:10:03,696 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 (38)] Ended with exit code 0 [2023-12-22 00:10:03,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:10:03,893 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:10:03,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:10:03,893 INFO L85 PathProgramCache]: Analyzing trace with hash -706617422, now seen corresponding path program 1 times [2023-12-22 00:10:03,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:10:03,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885178197] [2023-12-22 00:10:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:10:03,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:10:03,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:10:03,894 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:10:03,897 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 (39)] Waiting until timeout for monitored process [2023-12-22 00:10:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:10:03,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-22 00:10:03,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:10:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 149 proven. 40 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-22 00:10:05,221 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:10:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 144 proven. 45 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-22 00:10:05,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:10:05,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885178197] [2023-12-22 00:10:05,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885178197] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:10:05,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:10:05,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 25 [2023-12-22 00:10:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009909661] [2023-12-22 00:10:05,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:10:05,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-22 00:10:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:10:05,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-22 00:10:05,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2023-12-22 00:10:05,883 INFO L87 Difference]: Start difference. First operand 8741 states and 10447 transitions. Second operand has 25 states, 25 states have (on average 7.68) internal successors, (192), 25 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:10:08,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:10:08,824 INFO L93 Difference]: Finished difference Result 10858 states and 12702 transitions. [2023-12-22 00:10:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-22 00:10:08,825 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.68) internal successors, (192), 25 states have internal predecessors, (192), 0 states have call successors, (0), 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 138 [2023-12-22 00:10:08,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:10:08,834 INFO L225 Difference]: With dead ends: 10858 [2023-12-22 00:10:08,834 INFO L226 Difference]: Without dead ends: 7991 [2023-12-22 00:10:08,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=519, Invalid=1737, Unknown=0, NotChecked=0, Total=2256 [2023-12-22 00:10:08,838 INFO L413 NwaCegarLoop]: 1511 mSDtfsCounter, 13575 mSDsluCounter, 12252 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13575 SdHoareTripleChecker+Valid, 13763 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:10:08,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13575 Valid, 13763 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 00:10:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7991 states. [2023-12-22 00:10:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7991 to 6999. [2023-12-22 00:10:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6997 states have (on average 1.2253823067028726) internal successors, (8574), 6998 states have internal predecessors, (8574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:10:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 8574 transitions. [2023-12-22 00:10:09,301 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 8574 transitions. Word has length 138 [2023-12-22 00:10:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:10:09,301 INFO L495 AbstractCegarLoop]: Abstraction has 6999 states and 8574 transitions. [2023-12-22 00:10:09,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.68) internal successors, (192), 25 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:10:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 8574 transitions. [2023-12-22 00:10:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-22 00:10:09,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:10:09,303 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:10:09,309 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 (39)] Forceful destruction successful, exit code 0 [2023-12-22 00:10:09,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:10:09,507 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:10:09,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:10:09,507 INFO L85 PathProgramCache]: Analyzing trace with hash -331953448, now seen corresponding path program 1 times [2023-12-22 00:10:09,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:10:09,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335988361] [2023-12-22 00:10:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:10:09,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:10:09,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:10:09,510 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:10:09,512 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 (40)] Waiting until timeout for monitored process [2023-12-22 00:10:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:10:09,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:10:09,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:10:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 106 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-22 00:10:11,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:10:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 106 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-22 00:10:14,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:10:14,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335988361] [2023-12-22 00:10:14,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335988361] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:10:14,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:10:14,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2023-12-22 00:10:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126715813] [2023-12-22 00:10:14,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:10:14,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-22 00:10:14,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:10:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-22 00:10:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2023-12-22 00:10:14,911 INFO L87 Difference]: Start difference. First operand 6999 states and 8574 transitions. Second operand has 38 states, 38 states have (on average 3.5789473684210527) internal successors, (136), 38 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:49,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-22 00:13:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:13,390 INFO L93 Difference]: Finished difference Result 7670 states and 9274 transitions. [2023-12-22 00:13:13,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-22 00:13:13,391 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.5789473684210527) internal successors, (136), 38 states have internal predecessors, (136), 0 states have call successors, (0), 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 141 [2023-12-22 00:13:13,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:13,401 INFO L225 Difference]: With dead ends: 7670 [2023-12-22 00:13:13,401 INFO L226 Difference]: Without dead ends: 7303 [2023-12-22 00:13:13,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1960 ImplicationChecksByTransitivity, 161.0s TimeCoverageRelationStatistics Valid=1467, Invalid=6356, Unknown=9, NotChecked=0, Total=7832 [2023-12-22 00:13:13,406 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 6950 mSDsluCounter, 23977 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6950 SdHoareTripleChecker+Valid, 25464 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:13,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6950 Valid, 25464 Invalid, 1494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 20.3s Time] [2023-12-22 00:13:13,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2023-12-22 00:13:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 6634. [2023-12-22 00:13:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6634 states, 6632 states have (on average 1.2356755126658625) internal successors, (8195), 6633 states have internal predecessors, (8195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6634 states to 6634 states and 8195 transitions. [2023-12-22 00:13:13,934 INFO L78 Accepts]: Start accepts. Automaton has 6634 states and 8195 transitions. Word has length 141 [2023-12-22 00:13:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:13,934 INFO L495 AbstractCegarLoop]: Abstraction has 6634 states and 8195 transitions. [2023-12-22 00:13:13,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.5789473684210527) internal successors, (136), 38 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6634 states and 8195 transitions. [2023-12-22 00:13:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 00:13:13,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:13,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:13,940 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 (40)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:14,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:14,137 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:14,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:14,137 INFO L85 PathProgramCache]: Analyzing trace with hash -791864291, now seen corresponding path program 1 times [2023-12-22 00:13:14,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:14,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148166738] [2023-12-22 00:13:14,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:14,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:14,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:14,139 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:14,141 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 (41)] Waiting until timeout for monitored process [2023-12-22 00:13:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:14,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:14,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:14,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:14,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:14,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148166738] [2023-12-22 00:13:14,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148166738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:14,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:14,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:13:14,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955773976] [2023-12-22 00:13:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:14,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:14,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:14,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:14,366 INFO L87 Difference]: Start difference. First operand 6634 states and 8195 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 00:13:28,603 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:13:28,613 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 (41)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:13:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:28,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:28,638 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 374 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:28,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 252 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-12-22 00:13:28,640 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:13:28,646 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:28,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:28,842 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (6634states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (6498 states constructed, input type IntersectNwa). [2023-12-22 00:13:28,843 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:13:28,845 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-22 00:13:28,847 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:13:28,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:13:28 BoogieIcfgContainer [2023-12-22 00:13:28,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:13:28,848 INFO L158 Benchmark]: Toolchain (without parser) took 860377.78ms. Allocated memory was 287.3MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 230.0MB in the beginning and 600.0MB in the end (delta: -370.0MB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-22 00:13:28,848 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory was 172.4MB in the beginning and 172.2MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:13:28,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1161.00ms. Allocated memory is still 287.3MB. Free memory was 229.7MB in the beginning and 169.2MB in the end (delta: 60.4MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. [2023-12-22 00:13:28,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 165.72ms. Allocated memory is still 287.3MB. Free memory was 169.2MB in the beginning and 134.1MB in the end (delta: 35.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-22 00:13:28,848 INFO L158 Benchmark]: Boogie Preprocessor took 331.49ms. Allocated memory was 287.3MB in the beginning and 524.3MB in the end (delta: 237.0MB). Free memory was 134.1MB in the beginning and 436.3MB in the end (delta: -302.1MB). Peak memory consumption was 47.0MB. Max. memory is 8.0GB. [2023-12-22 00:13:28,849 INFO L158 Benchmark]: RCFGBuilder took 20715.81ms. Allocated memory was 524.3MB in the beginning and 698.4MB in the end (delta: 174.1MB). Free memory was 436.3MB in the beginning and 505.2MB in the end (delta: -68.9MB). Peak memory consumption was 235.7MB. Max. memory is 8.0GB. [2023-12-22 00:13:28,849 INFO L158 Benchmark]: TraceAbstraction took 837998.01ms. Allocated memory was 698.4MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 504.7MB in the beginning and 600.0MB in the end (delta: -95.3MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-22 00:13:28,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory was 172.4MB in the beginning and 172.2MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1161.00ms. Allocated memory is still 287.3MB. Free memory was 229.7MB in the beginning and 169.2MB in the end (delta: 60.4MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 165.72ms. Allocated memory is still 287.3MB. Free memory was 169.2MB in the beginning and 134.1MB in the end (delta: 35.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 331.49ms. Allocated memory was 287.3MB in the beginning and 524.3MB in the end (delta: 237.0MB). Free memory was 134.1MB in the beginning and 436.3MB in the end (delta: -302.1MB). Peak memory consumption was 47.0MB. Max. memory is 8.0GB. * RCFGBuilder took 20715.81ms. Allocated memory was 524.3MB in the beginning and 698.4MB in the end (delta: 174.1MB). Free memory was 436.3MB in the beginning and 505.2MB in the end (delta: -68.9MB). Peak memory consumption was 235.7MB. Max. memory is 8.0GB. * TraceAbstraction took 837998.01ms. Allocated memory was 698.4MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 504.7MB in the beginning and 600.0MB in the end (delta: -95.3MB). Peak memory consumption was 1.5GB. 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: 510]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 510). Cancelled while NwaCegarLoop was constructing difference of abstraction (6634states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (6498 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 (6634states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (6498 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 807 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 838.0s, OverallIterations: 40, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 746.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 358170 SdHoareTripleChecker+Valid, 191.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358170 mSDsluCounter, 432501 SdHoareTripleChecker+Invalid, 170.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 374337 mSDsCounter, 2565 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46431 IncrementalHoareTripleChecker+Invalid, 48996 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2565 mSolverCounterUnsat, 58164 mSDtfsCounter, 46431 mSolverCounterSat, 1.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8103 GetRequests, 5593 SyntacticMatches, 1 SemanticMatches, 2509 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167154 ImplicationChecksByTransitivity, 557.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40854occurred in iteration=30, InterpolantAutomatonStates: 2065, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.3s AutomataMinimizationTime, 39 MinimizatonAttempts, 39197 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 63.6s InterpolantComputationTime, 3721 NumberOfCodeBlocks, 3457 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 6227 ConstructedInterpolants, 1328 QuantifiedInterpolants, 83936 SizeOfPredicates, 204 NumberOfNonLiveVariables, 7876 ConjunctsInSsa, 454 ConjunctsInUnsatCore, 63 InterpolantComputations, 17 PerfectInterpolantSequences, 4435/8055 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