/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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:10:59,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:11:00,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:11:00,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:11:00,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:11:00,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:11:00,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:11:00,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:11:00,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:11:00,092 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:11:00,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:11:00,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:11:00,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:11:00,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:11:00,094 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:11:00,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:11:00,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:11:00,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:11:00,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:11:00,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:11:00,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:11:00,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:11:00,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:11:00,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:11:00,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:11:00,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:11:00,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:11:00,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:11:00,100 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:11:00,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:11:00,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:11:00,100 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:11:00,100 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:11:00,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:11:00,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:11:00,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:11:00,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:11:00,312 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:11:00,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 02:11:01,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:11:01,779 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:11:01,780 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 02:11:01,806 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ddbff320/5d3c287480cb4a4fa0baf964def0e024/FLAG2ddfa6ef1 [2023-12-22 02:11:01,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ddbff320/5d3c287480cb4a4fa0baf964def0e024 [2023-12-22 02:11:01,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:11:01,825 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:11:01,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:11:01,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:11:01,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:11:01,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:11:01" (1/1) ... [2023-12-22 02:11:01,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5516269e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:01, skipping insertion in model container [2023-12-22 02:11:01,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:11:01" (1/1) ... [2023-12-22 02:11:01,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:11:02,315 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2023-12-22 02:11:02,386 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2023-12-22 02:11:02,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:11:02,899 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:11:02,939 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2023-12-22 02:11:02,956 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2023-12-22 02:11:03,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:11:03,328 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:11:03,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03 WrapperNode [2023-12-22 02:11:03,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:11:03,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:11:03,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:11:03,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:11:03,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,536 INFO L138 Inliner]: procedures = 40, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5180 [2023-12-22 02:11:03,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:11:03,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:11:03,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:11:03,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:11:03,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,647 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 02:11:03,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:11:03,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:11:03,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:11:03,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:11:03,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (1/1) ... [2023-12-22 02:11:03,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:11:03,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:11:03,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 02:11:03,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 02:11:03,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:11:03,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:11:03,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:11:03,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:11:04,002 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:11:04,004 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:11:30,181 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:11:30,268 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:11:30,268 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 02:11:30,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:11:30 BoogieIcfgContainer [2023-12-22 02:11:30,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:11:30,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:11:30,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:11:30,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:11:30,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:11:01" (1/3) ... [2023-12-22 02:11:30,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233a80f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:11:30, skipping insertion in model container [2023-12-22 02:11:30,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:11:03" (2/3) ... [2023-12-22 02:11:30,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233a80f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:11:30, skipping insertion in model container [2023-12-22 02:11:30,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:11:30" (3/3) ... [2023-12-22 02:11:30,276 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-22 02:11:30,288 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:11:30,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:11:30,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:11:30,356 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;@7228515b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:11:30,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:11:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 865 states, 862 states have (on average 1.9721577726218098) internal successors, (1700), 864 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states 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 02:11:30,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 02:11:30,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:11:30,373 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] [2023-12-22 02:11:30,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:11:30,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:11:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash -58125809, now seen corresponding path program 1 times [2023-12-22 02:11:30,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:11:30,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093577564] [2023-12-22 02:11:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:11:30,387 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 02:11:30,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:11:30,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:11:30,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 02:11:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:11:30,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 02:11:30,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:11:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:11:30,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:11:30,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:11:30,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093577564] [2023-12-22 02:11:30,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093577564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:11:30,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:11:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:11:30,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388136873] [2023-12-22 02:11:30,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:11:30,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 02:11:30,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:11:30,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 02:11:30,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 02:11:30,527 INFO L87 Difference]: Start difference. First operand has 865 states, 862 states have (on average 1.9721577726218098) internal successors, (1700), 864 states have internal predecessors, (1700), 0 states have call successors, (0), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 02:11:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:11:30,619 INFO L93 Difference]: Finished difference Result 1675 states and 3293 transitions. [2023-12-22 02:11:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 02:11:30,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-12-22 02:11:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:11:30,643 INFO L225 Difference]: With dead ends: 1675 [2023-12-22 02:11:30,643 INFO L226 Difference]: Without dead ends: 861 [2023-12-22 02:11:30,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 02:11:30,649 INFO L413 NwaCegarLoop]: 1628 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, 1628 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 [2023-12-22 02:11:30,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1628 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:11:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-22 02:11:30,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2023-12-22 02:11:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 859 states have (on average 1.8963911525029105) internal successors, (1629), 860 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states 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 02:11:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1629 transitions. [2023-12-22 02:11:30,707 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1629 transitions. Word has length 25 [2023-12-22 02:11:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:11:30,707 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1629 transitions. [2023-12-22 02:11:30,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 02:11:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1629 transitions. [2023-12-22 02:11:30,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 02:11:30,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:11:30,708 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] [2023-12-22 02:11:30,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 02:11:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:11:30,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:11:30,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:11:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash 364576017, now seen corresponding path program 1 times [2023-12-22 02:11:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:11:30,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545244314] [2023-12-22 02:11:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:11:30,914 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 02:11:30,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:11:30,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:11:30,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 02:11:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:11:31,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:11:31,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:11:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:11:31,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:11:31,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:11:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545244314] [2023-12-22 02:11:31,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545244314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:11:31,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:11:31,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:11:31,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310114909] [2023-12-22 02:11:31,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:11:31,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:11:31,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:11:31,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:11:31,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:11:31,075 INFO L87 Difference]: Start difference. First operand 861 states and 1629 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 02:11:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:11:31,182 INFO L93 Difference]: Finished difference Result 917 states and 1718 transitions. [2023-12-22 02:11:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:11:31,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-12-22 02:11:31,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:11:31,187 INFO L225 Difference]: With dead ends: 917 [2023-12-22 02:11:31,188 INFO L226 Difference]: Without dead ends: 861 [2023-12-22 02:11:31,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:11:31,190 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 0 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:11:31,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4824 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:11:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-22 02:11:31,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2023-12-22 02:11:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 859 states have (on average 1.838183934807916) internal successors, (1579), 860 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states 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 02:11:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1579 transitions. [2023-12-22 02:11:31,225 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1579 transitions. Word has length 25 [2023-12-22 02:11:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:11:31,225 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1579 transitions. [2023-12-22 02:11:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 02:11:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1579 transitions. [2023-12-22 02:11:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:11:31,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:11:31,234 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] [2023-12-22 02:11:31,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 02:11:31,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:11:31,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:11:31,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:11:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2121093177, now seen corresponding path program 1 times [2023-12-22 02:11:31,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:11:31,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227722415] [2023-12-22 02:11:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:11:31,438 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 02:11:31,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:11:31,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:11:31,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 02:11:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:11:31,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:11:31,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:11:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:11:31,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:11:31,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:11:31,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227722415] [2023-12-22 02:11:31,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227722415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:11:31,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:11:31,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:11:31,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369759459] [2023-12-22 02:11:31,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:11:31,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:11:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:11:31,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:11:31,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:11:31,618 INFO L87 Difference]: Start difference. First operand 861 states and 1579 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 02:12:07,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:07,190 INFO L93 Difference]: Finished difference Result 2365 states and 4452 transitions. [2023-12-22 02:12:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:07,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-22 02:12:07,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:07,196 INFO L225 Difference]: With dead ends: 2365 [2023-12-22 02:12:07,196 INFO L226 Difference]: Without dead ends: 1612 [2023-12-22 02:12:07,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 02:12:07,198 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 899 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:07,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 565 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 35.4s Time] [2023-12-22 02:12:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2023-12-22 02:12:07,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1612. [2023-12-22 02:12:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1610 states have (on average 1.6186335403726708) internal successors, (2606), 1611 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states 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 02:12:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2606 transitions. [2023-12-22 02:12:07,224 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2606 transitions. Word has length 59 [2023-12-22 02:12:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:07,224 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2606 transitions. [2023-12-22 02:12:07,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 02:12:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2606 transitions. [2023-12-22 02:12:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-22 02:12:07,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:07,226 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:07,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 02:12:07,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:07,429 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:07,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:07,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1115950856, now seen corresponding path program 1 times [2023-12-22 02:12:07,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:07,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016112297] [2023-12-22 02:12:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:07,430 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 02:12:07,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:07,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:07,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 02:12:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:07,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:12:07,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:08,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:08,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:08,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016112297] [2023-12-22 02:12:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016112297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:08,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:08,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-22 02:12:08,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503137990] [2023-12-22 02:12:08,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:08,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 02:12:08,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:08,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 02:12:08,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-22 02:12:08,850 INFO L87 Difference]: Start difference. First operand 1612 states and 2606 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:12:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:09,248 INFO L93 Difference]: Finished difference Result 2036 states and 3294 transitions. [2023-12-22 02:12:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 02:12:09,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-12-22 02:12:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:09,256 INFO L225 Difference]: With dead ends: 2036 [2023-12-22 02:12:09,258 INFO L226 Difference]: Without dead ends: 1983 [2023-12-22 02:12:09,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-12-22 02:12:09,261 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 2092 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:09,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 2563 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:12:09,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2023-12-22 02:12:09,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1714. [2023-12-22 02:12:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1712 states have (on average 1.6197429906542056) internal successors, (2773), 1713 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states 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 02:12:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2773 transitions. [2023-12-22 02:12:09,292 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2773 transitions. Word has length 74 [2023-12-22 02:12:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:09,293 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 2773 transitions. [2023-12-22 02:12:09,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:12:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2773 transitions. [2023-12-22 02:12:09,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 02:12:09,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:09,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:09,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:09,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:09,499 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:09,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1436654440, now seen corresponding path program 1 times [2023-12-22 02:12:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:09,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617293633] [2023-12-22 02:12:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:09,501 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 02:12:09,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:09,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:09,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 02:12:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:09,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:09,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:09,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:09,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:09,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617293633] [2023-12-22 02:12:09,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617293633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:09,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:09,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:09,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936181546] [2023-12-22 02:12:09,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:09,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:09,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:09,747 INFO L87 Difference]: Start difference. First operand 1714 states and 2773 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:12:09,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:09,787 INFO L93 Difference]: Finished difference Result 2008 states and 3251 transitions. [2023-12-22 02:12:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:09,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-22 02:12:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:09,793 INFO L225 Difference]: With dead ends: 2008 [2023-12-22 02:12:09,793 INFO L226 Difference]: Without dead ends: 1853 [2023-12-22 02:12:09,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 02:12:09,794 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1496 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1655 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 [2023-12-22 02:12:09,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1655 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:09,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2023-12-22 02:12:09,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1851. [2023-12-22 02:12:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1849 states have (on average 1.6181719848566793) internal successors, (2992), 1850 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states 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 02:12:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2992 transitions. [2023-12-22 02:12:09,825 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2992 transitions. Word has length 76 [2023-12-22 02:12:09,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:09,825 INFO L495 AbstractCegarLoop]: Abstraction has 1851 states and 2992 transitions. [2023-12-22 02:12:09,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:12:09,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2992 transitions. [2023-12-22 02:12:09,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-22 02:12:09,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:09,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:09,844 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 [2023-12-22 02:12:10,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:10,045 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:10,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:10,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1648504521, now seen corresponding path program 1 times [2023-12-22 02:12:10,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:10,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377369207] [2023-12-22 02:12:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:10,047 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 02:12:10,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:10,048 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:10,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 02:12:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:10,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:12:10,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:10,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:10,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:10,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:10,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377369207] [2023-12-22 02:12:10,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377369207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:10,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:10,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:12:10,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526932231] [2023-12-22 02:12:10,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:10,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:12:10,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:10,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:12:10,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:12:10,161 INFO L87 Difference]: Start difference. First operand 1851 states and 2992 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:12:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:10,223 INFO L93 Difference]: Finished difference Result 1865 states and 3009 transitions. [2023-12-22 02:12:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:12:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-22 02:12:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:10,232 INFO L225 Difference]: With dead ends: 1865 [2023-12-22 02:12:10,232 INFO L226 Difference]: Without dead ends: 1863 [2023-12-22 02:12:10,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:12:10,234 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4717 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 [2023-12-22 02:12:10,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4717 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:10,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2023-12-22 02:12:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1859. [2023-12-22 02:12:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1857 states have (on average 1.6149703823371029) internal successors, (2999), 1858 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states 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 02:12:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2999 transitions. [2023-12-22 02:12:10,267 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2999 transitions. Word has length 77 [2023-12-22 02:12:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:10,268 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2999 transitions. [2023-12-22 02:12:10,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:12:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2999 transitions. [2023-12-22 02:12:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:10,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:10,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:10,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:10,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:10,475 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:10,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash -981819824, now seen corresponding path program 1 times [2023-12-22 02:12:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261767636] [2023-12-22 02:12:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:10,477 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 02:12:10,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:10,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:10,512 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 (8)] Waiting until timeout for monitored process [2023-12-22 02:12:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:10,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:10,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:10,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:10,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:10,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261767636] [2023-12-22 02:12:10,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261767636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:10,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:10,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:10,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171914450] [2023-12-22 02:12:10,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:10,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:10,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:10,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:10,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:10,678 INFO L87 Difference]: Start difference. First operand 1859 states and 2999 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:10,713 INFO L93 Difference]: Finished difference Result 2171 states and 3499 transitions. [2023-12-22 02:12:10,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:10,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:10,719 INFO L225 Difference]: With dead ends: 2171 [2023-12-22 02:12:10,719 INFO L226 Difference]: Without dead ends: 2010 [2023-12-22 02:12:10,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:10,720 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1514 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1732 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 [2023-12-22 02:12:10,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1732 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2023-12-22 02:12:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 2008. [2023-12-22 02:12:10,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 2006 states have (on average 1.6126620139581256) internal successors, (3235), 2007 states have internal predecessors, (3235), 0 states have call successors, (0), 0 states 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 02:12:10,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 3235 transitions. [2023-12-22 02:12:10,747 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 3235 transitions. Word has length 78 [2023-12-22 02:12:10,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:10,747 INFO L495 AbstractCegarLoop]: Abstraction has 2008 states and 3235 transitions. [2023-12-22 02:12:10,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:10,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 3235 transitions. [2023-12-22 02:12:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:10,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:10,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:10,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-22 02:12:10,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:10,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:10,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash -226435760, now seen corresponding path program 1 times [2023-12-22 02:12:10,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:10,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553544851] [2023-12-22 02:12:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:10,956 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 02:12:10,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:10,963 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:10,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 02:12:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:11,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:11,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:11,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:11,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:11,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553544851] [2023-12-22 02:12:11,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553544851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:11,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:11,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:11,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600727773] [2023-12-22 02:12:11,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:11,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:11,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:11,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:11,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:11,125 INFO L87 Difference]: Start difference. First operand 2008 states and 3235 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:11,160 INFO L93 Difference]: Finished difference Result 2866 states and 4598 transitions. [2023-12-22 02:12:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:11,168 INFO L225 Difference]: With dead ends: 2866 [2023-12-22 02:12:11,168 INFO L226 Difference]: Without dead ends: 2419 [2023-12-22 02:12:11,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:11,170 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 1512 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1738 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 [2023-12-22 02:12:11,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2023-12-22 02:12:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2417. [2023-12-22 02:12:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2415 states have (on average 1.6045548654244306) internal successors, (3875), 2416 states have internal predecessors, (3875), 0 states have call successors, (0), 0 states 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 02:12:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 3875 transitions. [2023-12-22 02:12:11,205 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 3875 transitions. Word has length 78 [2023-12-22 02:12:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 2417 states and 3875 transitions. [2023-12-22 02:12:11,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 3875 transitions. [2023-12-22 02:12:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:11,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:11,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:11,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:11,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:11,413 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:11,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash -636822448, now seen corresponding path program 1 times [2023-12-22 02:12:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:11,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578834089] [2023-12-22 02:12:11,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:11,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:11,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:11,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:11,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 02:12:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:11,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:11,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:11,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:11,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:11,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578834089] [2023-12-22 02:12:11,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578834089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:11,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:11,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950627602] [2023-12-22 02:12:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:11,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:11,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:11,598 INFO L87 Difference]: Start difference. First operand 2417 states and 3875 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:11,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:11,677 INFO L93 Difference]: Finished difference Result 4057 states and 6455 transitions. [2023-12-22 02:12:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:11,700 INFO L225 Difference]: With dead ends: 4057 [2023-12-22 02:12:11,700 INFO L226 Difference]: Without dead ends: 3201 [2023-12-22 02:12:11,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:11,703 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1510 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1740 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 [2023-12-22 02:12:11,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1740 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:11,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2023-12-22 02:12:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3199. [2023-12-22 02:12:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3197 states have (on average 1.589928057553957) internal successors, (5083), 3198 states have internal predecessors, (5083), 0 states have call successors, (0), 0 states 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 02:12:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 5083 transitions. [2023-12-22 02:12:11,752 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 5083 transitions. Word has length 78 [2023-12-22 02:12:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:11,752 INFO L495 AbstractCegarLoop]: Abstraction has 3199 states and 5083 transitions. [2023-12-22 02:12:11,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 5083 transitions. [2023-12-22 02:12:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:11,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:11,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:11,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:11,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:11,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:11,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -905405616, now seen corresponding path program 1 times [2023-12-22 02:12:11,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:11,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507653694] [2023-12-22 02:12:11,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:11,958 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 02:12:11,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:11,959 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:11,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 02:12:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:12,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:12,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:12,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:12,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:12,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507653694] [2023-12-22 02:12:12,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507653694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:12,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:12,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:12,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634992739] [2023-12-22 02:12:12,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:12,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:12,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:12,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:12,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:12,109 INFO L87 Difference]: Start difference. First operand 3199 states and 5083 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:12,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:12,161 INFO L93 Difference]: Finished difference Result 6331 states and 9953 transitions. [2023-12-22 02:12:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:12,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:12,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:12,175 INFO L225 Difference]: With dead ends: 6331 [2023-12-22 02:12:12,175 INFO L226 Difference]: Without dead ends: 4693 [2023-12-22 02:12:12,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:12,180 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1508 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1742 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 [2023-12-22 02:12:12,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1742 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4693 states. [2023-12-22 02:12:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4693 to 4691. [2023-12-22 02:12:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4691 states, 4689 states have (on average 1.5685647259543614) internal successors, (7355), 4690 states have internal predecessors, (7355), 0 states have call successors, (0), 0 states 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 02:12:12,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4691 states to 4691 states and 7355 transitions. [2023-12-22 02:12:12,255 INFO L78 Accepts]: Start accepts. Automaton has 4691 states and 7355 transitions. Word has length 78 [2023-12-22 02:12:12,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:12,255 INFO L495 AbstractCegarLoop]: Abstraction has 4691 states and 7355 transitions. [2023-12-22 02:12:12,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:12,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4691 states and 7355 transitions. [2023-12-22 02:12:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:12,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:12,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:12,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:12,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:12,462 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:12,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:12,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1491117744, now seen corresponding path program 1 times [2023-12-22 02:12:12,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:12,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003834709] [2023-12-22 02:12:12,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:12,463 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 02:12:12,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:12,464 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:12,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 02:12:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:12,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:12,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:12,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:12,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:12,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003834709] [2023-12-22 02:12:12,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003834709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:12,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:12,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:12,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159276277] [2023-12-22 02:12:12,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:12,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:12,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:12,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:12,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:12,613 INFO L87 Difference]: Start difference. First operand 4691 states and 7355 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:12,684 INFO L93 Difference]: Finished difference Result 10663 states and 16517 transitions. [2023-12-22 02:12:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:12,713 INFO L225 Difference]: With dead ends: 10663 [2023-12-22 02:12:12,713 INFO L226 Difference]: Without dead ends: 7533 [2023-12-22 02:12:12,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:12,720 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1504 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1738 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 [2023-12-22 02:12:12,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7533 states. [2023-12-22 02:12:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7533 to 7531. [2023-12-22 02:12:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7531 states, 7529 states have (on average 1.5421702749369106) internal successors, (11611), 7530 states have internal predecessors, (11611), 0 states have call successors, (0), 0 states 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 02:12:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7531 states to 7531 states and 11611 transitions. [2023-12-22 02:12:12,906 INFO L78 Accepts]: Start accepts. Automaton has 7531 states and 11611 transitions. Word has length 78 [2023-12-22 02:12:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:12,906 INFO L495 AbstractCegarLoop]: Abstraction has 7531 states and 11611 transitions. [2023-12-22 02:12:12,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7531 states and 11611 transitions. [2023-12-22 02:12:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:12,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:12,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:12,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:13,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:13,111 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:13,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:13,111 INFO L85 PathProgramCache]: Analyzing trace with hash -602384304, now seen corresponding path program 1 times [2023-12-22 02:12:13,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:13,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999784363] [2023-12-22 02:12:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:13,112 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 02:12:13,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:13,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:13,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 02:12:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:13,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:13,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:13,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:13,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:13,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999784363] [2023-12-22 02:12:13,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999784363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:13,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:13,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390064379] [2023-12-22 02:12:13,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:13,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:13,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:13,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:13,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:13,259 INFO L87 Difference]: Start difference. First operand 7531 states and 11611 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:13,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:13,363 INFO L93 Difference]: Finished difference Result 18895 states and 28781 transitions. [2023-12-22 02:12:13,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:13,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:13,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:13,385 INFO L225 Difference]: With dead ends: 18895 [2023-12-22 02:12:13,385 INFO L226 Difference]: Without dead ends: 12925 [2023-12-22 02:12:13,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:13,395 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 1502 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1740 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 [2023-12-22 02:12:13,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1740 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12925 states. [2023-12-22 02:12:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12925 to 12923. [2023-12-22 02:12:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12923 states, 12921 states have (on average 1.5128086061450352) internal successors, (19547), 12922 states have internal predecessors, (19547), 0 states have call successors, (0), 0 states 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 02:12:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12923 states to 12923 states and 19547 transitions. [2023-12-22 02:12:13,631 INFO L78 Accepts]: Start accepts. Automaton has 12923 states and 19547 transitions. Word has length 78 [2023-12-22 02:12:13,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:13,631 INFO L495 AbstractCegarLoop]: Abstraction has 12923 states and 19547 transitions. [2023-12-22 02:12:13,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 12923 states and 19547 transitions. [2023-12-22 02:12:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 02:12:13,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:13,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:13,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:13,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:13,835 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:13,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash -865461680, now seen corresponding path program 1 times [2023-12-22 02:12:13,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:13,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110347714] [2023-12-22 02:12:13,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:13,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:13,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:13,838 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:13,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 02:12:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:13,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:13,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:13,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:13,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:13,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110347714] [2023-12-22 02:12:13,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110347714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:13,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:13,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:13,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615660194] [2023-12-22 02:12:13,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:13,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:13,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:13,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:13,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:13,998 INFO L87 Difference]: Start difference. First operand 12923 states and 19547 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:14,223 INFO L93 Difference]: Finished difference Result 34495 states and 51581 transitions. [2023-12-22 02:12:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:14,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-22 02:12:14,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:14,257 INFO L225 Difference]: With dead ends: 34495 [2023-12-22 02:12:14,258 INFO L226 Difference]: Without dead ends: 23133 [2023-12-22 02:12:14,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 02:12:14,267 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 1506 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1744 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 [2023-12-22 02:12:14,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1744 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23133 states. [2023-12-22 02:12:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23133 to 23131. [2023-12-22 02:12:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23131 states, 23129 states have (on average 1.4815599463876519) internal successors, (34267), 23130 states have internal predecessors, (34267), 0 states have call successors, (0), 0 states 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 02:12:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23131 states to 23131 states and 34267 transitions. [2023-12-22 02:12:14,685 INFO L78 Accepts]: Start accepts. Automaton has 23131 states and 34267 transitions. Word has length 78 [2023-12-22 02:12:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:14,686 INFO L495 AbstractCegarLoop]: Abstraction has 23131 states and 34267 transitions. [2023-12-22 02:12:14,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:12:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 23131 states and 34267 transitions. [2023-12-22 02:12:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 02:12:14,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:14,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:14,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:14,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:14,893 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:14,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1758605507, now seen corresponding path program 1 times [2023-12-22 02:12:14,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:14,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145662395] [2023-12-22 02:12:14,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:14,894 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 02:12:14,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:14,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:14,897 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 (15)] Waiting until timeout for monitored process [2023-12-22 02:12:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:15,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:15,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:15,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:16,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:16,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145662395] [2023-12-22 02:12:16,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145662395] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:16,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:16,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:16,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544732503] [2023-12-22 02:12:16,423 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:16,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:16,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:16,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:16,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:16,424 INFO L87 Difference]: Start difference. First operand 23131 states and 34267 transitions. Second operand has 16 states, 16 states have (on average 11.375) internal successors, (182), 16 states have internal predecessors, (182), 0 states have call successors, (0), 0 states 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 02:12:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:18,873 INFO L93 Difference]: Finished difference Result 70437 states and 103264 transitions. [2023-12-22 02:12:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:12:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.375) internal successors, (182), 16 states have internal predecessors, (182), 0 states have call successors, (0), 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 100 [2023-12-22 02:12:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:18,955 INFO L225 Difference]: With dead ends: 70437 [2023-12-22 02:12:18,955 INFO L226 Difference]: Without dead ends: 55459 [2023-12-22 02:12:18,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 02:12:18,977 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 5695 mSDsluCounter, 11048 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5695 SdHoareTripleChecker+Valid, 12638 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:18,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5695 Valid, 12638 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 02:12:19,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55459 states. [2023-12-22 02:12:20,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55459 to 44699. [2023-12-22 02:12:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44699 states, 44697 states have (on average 1.4725596796205562) internal successors, (65819), 44698 states have internal predecessors, (65819), 0 states have call successors, (0), 0 states 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 02:12:20,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44699 states to 44699 states and 65819 transitions. [2023-12-22 02:12:20,222 INFO L78 Accepts]: Start accepts. Automaton has 44699 states and 65819 transitions. Word has length 100 [2023-12-22 02:12:20,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:20,222 INFO L495 AbstractCegarLoop]: Abstraction has 44699 states and 65819 transitions. [2023-12-22 02:12:20,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.375) internal successors, (182), 16 states have internal predecessors, (182), 0 states have call successors, (0), 0 states 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 02:12:20,222 INFO L276 IsEmpty]: Start isEmpty. Operand 44699 states and 65819 transitions. [2023-12-22 02:12:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 02:12:20,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:20,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:20,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:20,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:20,430 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:20,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1780977725, now seen corresponding path program 1 times [2023-12-22 02:12:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664155241] [2023-12-22 02:12:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:20,431 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 02:12:20,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:20,432 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:20,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 02:12:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:20,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:20,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:20,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:20,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:20,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664155241] [2023-12-22 02:12:20,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664155241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:20,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:20,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:20,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435558830] [2023-12-22 02:12:20,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:20,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:20,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:20,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:20,566 INFO L87 Difference]: Start difference. First operand 44699 states and 65819 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 02:12:21,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:21,152 INFO L93 Difference]: Finished difference Result 74677 states and 110196 transitions. [2023-12-22 02:12:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:21,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-22 02:12:21,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:21,193 INFO L225 Difference]: With dead ends: 74677 [2023-12-22 02:12:21,193 INFO L226 Difference]: Without dead ends: 31539 [2023-12-22 02:12:21,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 02:12:21,213 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 63 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3197 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 [2023-12-22 02:12:21,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3197 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:21,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2023-12-22 02:12:21,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 31532. [2023-12-22 02:12:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31532 states, 31530 states have (on average 1.4750396447827465) internal successors, (46508), 31531 states have internal predecessors, (46508), 0 states have call successors, (0), 0 states 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 02:12:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31532 states to 31532 states and 46508 transitions. [2023-12-22 02:12:21,973 INFO L78 Accepts]: Start accepts. Automaton has 31532 states and 46508 transitions. Word has length 100 [2023-12-22 02:12:21,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:21,974 INFO L495 AbstractCegarLoop]: Abstraction has 31532 states and 46508 transitions. [2023-12-22 02:12:21,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 02:12:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 31532 states and 46508 transitions. [2023-12-22 02:12:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-22 02:12:21,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:21,978 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:21,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:22,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:12:22,182 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:22,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1681904461, now seen corresponding path program 1 times [2023-12-22 02:12:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:22,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882710942] [2023-12-22 02:12:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:22,183 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 02:12:22,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:22,184 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:12:22,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 02:12:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:22,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:22,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:22,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:22,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:22,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882710942] [2023-12-22 02:12:22,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882710942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:22,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:22,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:22,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518820089] [2023-12-22 02:12:22,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:22,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:22,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:22,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:22,329 INFO L87 Difference]: Start difference. First operand 31532 states and 46508 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 02:12:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:22,617 INFO L93 Difference]: Finished difference Result 46512 states and 68494 transitions. [2023-12-22 02:12:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:22,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2023-12-22 02:12:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:22,637 INFO L225 Difference]: With dead ends: 46512 [2023-12-22 02:12:22,637 INFO L226 Difference]: Without dead ends: 16558 [2023-12-22 02:12:22,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 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 02:12:22,658 INFO L413 NwaCegarLoop]: 1625 mSDtfsCounter, 59 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3182 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 [2023-12-22 02:12:22,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3182 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:22,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16558 states. [2023-12-22 02:12:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16558 to 16556. [2023-12-22 02:12:23,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16556 states, 16554 states have (on average 1.4698562281019694) internal successors, (24332), 16555 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states 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 02:12:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16556 states to 16556 states and 24332 transitions. [2023-12-22 02:12:23,083 INFO L78 Accepts]: Start accepts. Automaton has 16556 states and 24332 transitions. Word has length 102 [2023-12-22 02:12:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:23,083 INFO L495 AbstractCegarLoop]: Abstraction has 16556 states and 24332 transitions. [2023-12-22 02:12:23,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 02:12:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 16556 states and 24332 transitions. [2023-12-22 02:12:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 02:12:23,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:23,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:23,108 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 02:12:23,288 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 02:12:23,288 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:23,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:23,289 INFO L85 PathProgramCache]: Analyzing trace with hash 334933909, now seen corresponding path program 1 times [2023-12-22 02:12:23,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:23,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99808751] [2023-12-22 02:12:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:23,289 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 02:12:23,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:23,291 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 02:12:23,305 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 02:12:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:23,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:23,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:24,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:24,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:24,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99808751] [2023-12-22 02:12:24,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99808751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:24,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:24,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:24,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709384054] [2023-12-22 02:12:24,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:24,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:24,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:24,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:24,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:24,728 INFO L87 Difference]: Start difference. First operand 16556 states and 24332 transitions. Second operand has 16 states, 16 states have (on average 11.875) internal successors, (190), 16 states have internal predecessors, (190), 0 states have call successors, (0), 0 states 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 02:12:26,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:26,827 INFO L93 Difference]: Finished difference Result 59380 states and 86160 transitions. [2023-12-22 02:12:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:12:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.875) internal successors, (190), 16 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-22 02:12:26,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:26,896 INFO L225 Difference]: With dead ends: 59380 [2023-12-22 02:12:26,896 INFO L226 Difference]: Without dead ends: 44402 [2023-12-22 02:12:26,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:12:26,913 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 5498 mSDsluCounter, 9616 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 11269 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:26,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5498 Valid, 11269 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 02:12:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44402 states. [2023-12-22 02:12:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44402 to 32684. [2023-12-22 02:12:27,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32684 states, 32682 states have (on average 1.4406707055871735) internal successors, (47084), 32683 states have internal predecessors, (47084), 0 states have call successors, (0), 0 states 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 02:12:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32684 states to 32684 states and 47084 transitions. [2023-12-22 02:12:27,776 INFO L78 Accepts]: Start accepts. Automaton has 32684 states and 47084 transitions. Word has length 103 [2023-12-22 02:12:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:27,776 INFO L495 AbstractCegarLoop]: Abstraction has 32684 states and 47084 transitions. [2023-12-22 02:12:27,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.875) internal successors, (190), 16 states have internal predecessors, (190), 0 states have call successors, (0), 0 states 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 02:12:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 32684 states and 47084 transitions. [2023-12-22 02:12:27,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-22 02:12:27,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:27,779 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:27,785 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 02:12:27,982 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 02:12:27,982 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:27,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash 497928529, now seen corresponding path program 1 times [2023-12-22 02:12:27,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:27,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330603236] [2023-12-22 02:12:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:27,984 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 02:12:27,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:27,985 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 02:12:27,986 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 02:12:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:28,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:28,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:28,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:28,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:28,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330603236] [2023-12-22 02:12:28,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330603236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:28,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:28,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:28,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987492357] [2023-12-22 02:12:28,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:28,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:28,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:28,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:28,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:28,126 INFO L87 Difference]: Start difference. First operand 32684 states and 47084 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 02:12:28,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:28,501 INFO L93 Difference]: Finished difference Result 48240 states and 69358 transitions. [2023-12-22 02:12:28,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:28,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2023-12-22 02:12:28,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:28,522 INFO L225 Difference]: With dead ends: 48240 [2023-12-22 02:12:28,522 INFO L226 Difference]: Without dead ends: 17134 [2023-12-22 02:12:28,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 02:12:28,538 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 55 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3167 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 [2023-12-22 02:12:28,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3167 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17134 states. [2023-12-22 02:12:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17134 to 17132. [2023-12-22 02:12:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17132 states, 17130 states have (on average 1.4372446001167543) internal successors, (24620), 17131 states have internal predecessors, (24620), 0 states have call successors, (0), 0 states 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 02:12:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17132 states to 17132 states and 24620 transitions. [2023-12-22 02:12:28,858 INFO L78 Accepts]: Start accepts. Automaton has 17132 states and 24620 transitions. Word has length 105 [2023-12-22 02:12:28,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:28,858 INFO L495 AbstractCegarLoop]: Abstraction has 17132 states and 24620 transitions. [2023-12-22 02:12:28,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states 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 02:12:28,858 INFO L276 IsEmpty]: Start isEmpty. Operand 17132 states and 24620 transitions. [2023-12-22 02:12:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-22 02:12:28,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:28,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:28,863 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 (19)] Ended with exit code 0 [2023-12-22 02:12:29,063 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 02:12:29,064 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:29,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:29,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1220106825, now seen corresponding path program 1 times [2023-12-22 02:12:29,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:29,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293817725] [2023-12-22 02:12:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:29,065 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 02:12:29,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:29,066 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 02:12:29,067 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 02:12:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:29,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:29,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:29,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:30,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:30,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293817725] [2023-12-22 02:12:30,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293817725] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:30,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:30,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:30,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733172359] [2023-12-22 02:12:30,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:30,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:30,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:30,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:30,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:30,185 INFO L87 Difference]: Start difference. First operand 17132 states and 24620 transitions. Second operand has 16 states, 16 states have (on average 12.375) internal successors, (198), 16 states have internal predecessors, (198), 0 states have call successors, (0), 0 states 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 02:12:32,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:32,249 INFO L93 Difference]: Finished difference Result 59956 states and 85104 transitions. [2023-12-22 02:12:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:12:32,249 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.375) internal successors, (198), 16 states have internal predecessors, (198), 0 states have call successors, (0), 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 106 [2023-12-22 02:12:32,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:32,302 INFO L225 Difference]: With dead ends: 59956 [2023-12-22 02:12:32,302 INFO L226 Difference]: Without dead ends: 44402 [2023-12-22 02:12:32,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:12:32,325 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 3714 mSDsluCounter, 11143 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3714 SdHoareTripleChecker+Valid, 12778 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:32,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3714 Valid, 12778 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:12:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44402 states. [2023-12-22 02:12:33,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44402 to 33836. [2023-12-22 02:12:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33836 states, 33834 states have (on average 1.408642194242478) internal successors, (47660), 33835 states have internal predecessors, (47660), 0 states have call successors, (0), 0 states 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 02:12:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33836 states to 33836 states and 47660 transitions. [2023-12-22 02:12:33,314 INFO L78 Accepts]: Start accepts. Automaton has 33836 states and 47660 transitions. Word has length 106 [2023-12-22 02:12:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:33,315 INFO L495 AbstractCegarLoop]: Abstraction has 33836 states and 47660 transitions. [2023-12-22 02:12:33,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.375) internal successors, (198), 16 states have internal predecessors, (198), 0 states have call successors, (0), 0 states 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 02:12:33,315 INFO L276 IsEmpty]: Start isEmpty. Operand 33836 states and 47660 transitions. [2023-12-22 02:12:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-22 02:12:33,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:33,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:33,320 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 02:12:33,520 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 02:12:33,520 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:33,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:33,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1258525633, now seen corresponding path program 1 times [2023-12-22 02:12:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:33,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591132217] [2023-12-22 02:12:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:33,522 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 02:12:33,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:33,523 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 02:12:33,524 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 02:12:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:33,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:33,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:33,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:33,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591132217] [2023-12-22 02:12:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591132217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:33,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:33,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:33,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126190622] [2023-12-22 02:12:33,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:33,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:33,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:33,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:33,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:33,663 INFO L87 Difference]: Start difference. First operand 33836 states and 47660 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 02:12:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:33,985 INFO L93 Difference]: Finished difference Result 49968 states and 70222 transitions. [2023-12-22 02:12:33,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:33,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2023-12-22 02:12:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:34,009 INFO L225 Difference]: With dead ends: 49968 [2023-12-22 02:12:34,010 INFO L226 Difference]: Without dead ends: 17710 [2023-12-22 02:12:34,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 02:12:34,030 INFO L413 NwaCegarLoop]: 1611 mSDtfsCounter, 51 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3152 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 [2023-12-22 02:12:34,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3152 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:34,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17710 states. [2023-12-22 02:12:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17710 to 17708. [2023-12-22 02:12:34,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17708 states, 17706 states have (on average 1.406754772393539) internal successors, (24908), 17707 states have internal predecessors, (24908), 0 states have call successors, (0), 0 states 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 02:12:34,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17708 states to 17708 states and 24908 transitions. [2023-12-22 02:12:34,387 INFO L78 Accepts]: Start accepts. Automaton has 17708 states and 24908 transitions. Word has length 108 [2023-12-22 02:12:34,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:34,387 INFO L495 AbstractCegarLoop]: Abstraction has 17708 states and 24908 transitions. [2023-12-22 02:12:34,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 02:12:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 17708 states and 24908 transitions. [2023-12-22 02:12:34,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-22 02:12:34,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:34,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:34,395 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 (21)] Forceful destruction successful, exit code 0 [2023-12-22 02:12:34,592 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 02:12:34,593 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:34,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -104194167, now seen corresponding path program 1 times [2023-12-22 02:12:34,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:34,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111311282] [2023-12-22 02:12:34,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:34,594 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 02:12:34,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:34,601 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 02:12:34,602 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 02:12:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:34,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:34,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:35,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:36,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:36,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111311282] [2023-12-22 02:12:36,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111311282] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:36,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:36,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:36,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622262760] [2023-12-22 02:12:36,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:36,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:36,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:36,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:36,261 INFO L87 Difference]: Start difference. First operand 17708 states and 24908 transitions. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:12:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:38,496 INFO L93 Difference]: Finished difference Result 60532 states and 84048 transitions. [2023-12-22 02:12:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:12:38,497 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-22 02:12:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:38,547 INFO L225 Difference]: With dead ends: 60532 [2023-12-22 02:12:38,547 INFO L226 Difference]: Without dead ends: 44402 [2023-12-22 02:12:38,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:12:38,555 INFO L413 NwaCegarLoop]: 1617 mSDtfsCounter, 5344 mSDsluCounter, 7916 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5344 SdHoareTripleChecker+Valid, 9533 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:38,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5344 Valid, 9533 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:12:38,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44402 states. [2023-12-22 02:12:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44402 to 34988. [2023-12-22 02:12:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34988 states, 34986 states have (on average 1.378722917738524) internal successors, (48236), 34987 states have internal predecessors, (48236), 0 states have call successors, (0), 0 states 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 02:12:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34988 states to 34988 states and 48236 transitions. [2023-12-22 02:12:39,510 INFO L78 Accepts]: Start accepts. Automaton has 34988 states and 48236 transitions. Word has length 109 [2023-12-22 02:12:39,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:39,511 INFO L495 AbstractCegarLoop]: Abstraction has 34988 states and 48236 transitions. [2023-12-22 02:12:39,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 02:12:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 34988 states and 48236 transitions. [2023-12-22 02:12:39,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 02:12:39,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:39,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:39,516 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 02:12:39,714 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 02:12:39,715 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:39,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1274066467, now seen corresponding path program 1 times [2023-12-22 02:12:39,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:39,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311271352] [2023-12-22 02:12:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:39,716 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 02:12:39,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:39,717 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 02:12:39,721 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 02:12:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:39,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:39,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:39,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:39,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:39,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311271352] [2023-12-22 02:12:39,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311271352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:39,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:39,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:39,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926303340] [2023-12-22 02:12:39,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:39,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:39,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:39,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:39,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:39,940 INFO L87 Difference]: Start difference. First operand 34988 states and 48236 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 02:12:40,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:40,321 INFO L93 Difference]: Finished difference Result 51696 states and 71086 transitions. [2023-12-22 02:12:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-22 02:12:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:40,345 INFO L225 Difference]: With dead ends: 51696 [2023-12-22 02:12:40,346 INFO L226 Difference]: Without dead ends: 18286 [2023-12-22 02:12:40,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 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 02:12:40,364 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 47 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3137 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 [2023-12-22 02:12:40,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:40,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18286 states. [2023-12-22 02:12:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18286 to 18284. [2023-12-22 02:12:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18284 states, 18282 states have (on average 1.3781861940706706) internal successors, (25196), 18283 states have internal predecessors, (25196), 0 states have call successors, (0), 0 states 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 02:12:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18284 states to 18284 states and 25196 transitions. [2023-12-22 02:12:40,782 INFO L78 Accepts]: Start accepts. Automaton has 18284 states and 25196 transitions. Word has length 111 [2023-12-22 02:12:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:40,783 INFO L495 AbstractCegarLoop]: Abstraction has 18284 states and 25196 transitions. [2023-12-22 02:12:40,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 02:12:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 18284 states and 25196 transitions. [2023-12-22 02:12:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 02:12:40,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:40,784 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:40,787 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 02:12:40,987 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 02:12:40,987 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:40,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash -546016085, now seen corresponding path program 1 times [2023-12-22 02:12:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:40,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598313678] [2023-12-22 02:12:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:40,988 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 02:12:40,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:40,991 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 02:12:41,001 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 02:12:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:41,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:41,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:42,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:42,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598313678] [2023-12-22 02:12:42,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598313678] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:42,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:42,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015443488] [2023-12-22 02:12:42,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:42,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:42,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:42,387 INFO L87 Difference]: Start difference. First operand 18284 states and 25196 transitions. Second operand has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 02:12:44,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:44,538 INFO L93 Difference]: Finished difference Result 61108 states and 82992 transitions. [2023-12-22 02:12:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:12:44,539 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-22 02:12:44,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:44,586 INFO L225 Difference]: With dead ends: 61108 [2023-12-22 02:12:44,586 INFO L226 Difference]: Without dead ends: 44402 [2023-12-22 02:12:44,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:12:44,599 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 3590 mSDsluCounter, 11015 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 12614 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:44,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3590 Valid, 12614 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:12:44,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44402 states. [2023-12-22 02:12:45,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44402 to 36140. [2023-12-22 02:12:45,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36140 states, 36138 states have (on average 1.3507111627649566) internal successors, (48812), 36139 states have internal predecessors, (48812), 0 states have call successors, (0), 0 states 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 02:12:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36140 states to 36140 states and 48812 transitions. [2023-12-22 02:12:45,627 INFO L78 Accepts]: Start accepts. Automaton has 36140 states and 48812 transitions. Word has length 112 [2023-12-22 02:12:45,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:45,628 INFO L495 AbstractCegarLoop]: Abstraction has 36140 states and 48812 transitions. [2023-12-22 02:12:45,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 02:12:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 36140 states and 48812 transitions. [2023-12-22 02:12:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 02:12:45,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:45,630 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:45,633 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 (24)] Ended with exit code 0 [2023-12-22 02:12:45,834 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 02:12:45,834 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:45,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:45,834 INFO L85 PathProgramCache]: Analyzing trace with hash 549392843, now seen corresponding path program 1 times [2023-12-22 02:12:45,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:45,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934456486] [2023-12-22 02:12:45,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:45,835 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 02:12:45,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:45,836 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 02:12:45,838 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 02:12:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:45,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:45,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:46,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:46,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:46,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934456486] [2023-12-22 02:12:46,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934456486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:46,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:46,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:46,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486449786] [2023-12-22 02:12:46,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:46,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:46,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:46,006 INFO L87 Difference]: Start difference. First operand 36140 states and 48812 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 02:12:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:46,404 INFO L93 Difference]: Finished difference Result 53424 states and 71950 transitions. [2023-12-22 02:12:46,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2023-12-22 02:12:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:46,427 INFO L225 Difference]: With dead ends: 53424 [2023-12-22 02:12:46,427 INFO L226 Difference]: Without dead ends: 18862 [2023-12-22 02:12:46,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 02:12:46,448 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 43 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3122 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 [2023-12-22 02:12:46,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3122 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18862 states. [2023-12-22 02:12:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18862 to 18860. [2023-12-22 02:12:47,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18860 states, 18858 states have (on average 1.3513628168416587) internal successors, (25484), 18859 states have internal predecessors, (25484), 0 states have call successors, (0), 0 states 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 02:12:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18860 states to 18860 states and 25484 transitions. [2023-12-22 02:12:47,069 INFO L78 Accepts]: Start accepts. Automaton has 18860 states and 25484 transitions. Word has length 114 [2023-12-22 02:12:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:47,070 INFO L495 AbstractCegarLoop]: Abstraction has 18860 states and 25484 transitions. [2023-12-22 02:12:47,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 02:12:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 18860 states and 25484 transitions. [2023-12-22 02:12:47,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-22 02:12:47,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:47,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:47,075 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 02:12:47,275 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 02:12:47,275 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:47,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash -479008387, now seen corresponding path program 1 times [2023-12-22 02:12:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:47,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783003019] [2023-12-22 02:12:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:47,277 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 02:12:47,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:47,278 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 02:12:47,279 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 02:12:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:47,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:47,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:48,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:48,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:48,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783003019] [2023-12-22 02:12:48,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783003019] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:48,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:48,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:48,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169488088] [2023-12-22 02:12:48,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:48,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:48,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:48,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:48,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:48,559 INFO L87 Difference]: Start difference. First operand 18860 states and 25484 transitions. Second operand has 16 states, 16 states have (on average 13.875) internal successors, (222), 16 states have internal predecessors, (222), 0 states have call successors, (0), 0 states 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 02:12:50,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:50,684 INFO L93 Difference]: Finished difference Result 61684 states and 81936 transitions. [2023-12-22 02:12:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 02:12:50,685 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.875) internal successors, (222), 16 states have internal predecessors, (222), 0 states have call successors, (0), 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 115 [2023-12-22 02:12:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:50,732 INFO L225 Difference]: With dead ends: 61684 [2023-12-22 02:12:50,732 INFO L226 Difference]: Without dead ends: 44402 [2023-12-22 02:12:50,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 02:12:50,744 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 3616 mSDsluCounter, 10976 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3616 SdHoareTripleChecker+Valid, 12557 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:50,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3616 Valid, 12557 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:12:50,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44402 states. [2023-12-22 02:12:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44402 to 37292. [2023-12-22 02:12:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37292 states, 37290 states have (on average 1.3244301421292572) internal successors, (49388), 37291 states have internal predecessors, (49388), 0 states have call successors, (0), 0 states 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 02:12:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37292 states to 37292 states and 49388 transitions. [2023-12-22 02:12:51,791 INFO L78 Accepts]: Start accepts. Automaton has 37292 states and 49388 transitions. Word has length 115 [2023-12-22 02:12:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:51,791 INFO L495 AbstractCegarLoop]: Abstraction has 37292 states and 49388 transitions. [2023-12-22 02:12:51,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.875) internal successors, (222), 16 states have internal predecessors, (222), 0 states have call successors, (0), 0 states 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 02:12:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 37292 states and 49388 transitions. [2023-12-22 02:12:51,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-22 02:12:51,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:51,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:51,797 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 02:12:51,996 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 02:12:51,997 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:51,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:51,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1048170391, now seen corresponding path program 1 times [2023-12-22 02:12:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4173779] [2023-12-22 02:12:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:51,998 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 02:12:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:52,002 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 02:12:52,003 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 02:12:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:52,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:12:52,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:52,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:12:52,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4173779] [2023-12-22 02:12:52,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4173779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:12:52,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:12:52,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:12:52,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808801178] [2023-12-22 02:12:52,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:12:52,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:12:52,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:12:52,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:12:52,153 INFO L87 Difference]: Start difference. First operand 37292 states and 49388 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 02:12:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:52,736 INFO L93 Difference]: Finished difference Result 55044 states and 72583 transitions. [2023-12-22 02:12:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:12:52,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-22 02:12:52,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:52,758 INFO L225 Difference]: With dead ends: 55044 [2023-12-22 02:12:52,758 INFO L226 Difference]: Without dead ends: 19330 [2023-12-22 02:12:52,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 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 02:12:52,777 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 39 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3107 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 [2023-12-22 02:12:52,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:12:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19330 states. [2023-12-22 02:12:53,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19330 to 19328. [2023-12-22 02:12:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19328 states, 19326 states have (on average 1.3216392424712822) internal successors, (25542), 19327 states have internal predecessors, (25542), 0 states have call successors, (0), 0 states 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 02:12:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19328 states to 19328 states and 25542 transitions. [2023-12-22 02:12:53,402 INFO L78 Accepts]: Start accepts. Automaton has 19328 states and 25542 transitions. Word has length 117 [2023-12-22 02:12:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:53,402 INFO L495 AbstractCegarLoop]: Abstraction has 19328 states and 25542 transitions. [2023-12-22 02:12:53,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 02:12:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 19328 states and 25542 transitions. [2023-12-22 02:12:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 02:12:53,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:53,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:53,408 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 (27)] Ended with exit code 0 [2023-12-22 02:12:53,607 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 02:12:53,608 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:53,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1870094945, now seen corresponding path program 1 times [2023-12-22 02:12:53,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:53,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098303842] [2023-12-22 02:12:53,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:53,609 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 02:12:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:53,610 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 02:12:53,612 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 02:12:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:53,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 02:12:53,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:54,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:12:54,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:54,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098303842] [2023-12-22 02:12:54,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098303842] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:54,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:54,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 02:12:54,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168978923] [2023-12-22 02:12:54,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:54,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 02:12:54,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 02:12:54,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 02:12:54,958 INFO L87 Difference]: Start difference. First operand 19328 states and 25542 transitions. Second operand has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:12:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:12:56,980 INFO L93 Difference]: Finished difference Result 52006 states and 67505 transitions. [2023-12-22 02:12:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 02:12:56,981 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 0 states have call successors, (0), 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 118 [2023-12-22 02:12:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:12:57,019 INFO L225 Difference]: With dead ends: 52006 [2023-12-22 02:12:57,019 INFO L226 Difference]: Without dead ends: 34256 [2023-12-22 02:12:57,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 02:12:57,032 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 1886 mSDsluCounter, 13948 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 15511 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:12:57,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 15511 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:12:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34256 states. [2023-12-22 02:12:57,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34256 to 31886. [2023-12-22 02:12:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31886 states, 31884 states have (on average 1.2965437209885837) internal successors, (41339), 31885 states have internal predecessors, (41339), 0 states have call successors, (0), 0 states 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 02:12:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31886 states to 31886 states and 41339 transitions. [2023-12-22 02:12:57,997 INFO L78 Accepts]: Start accepts. Automaton has 31886 states and 41339 transitions. Word has length 118 [2023-12-22 02:12:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:12:57,998 INFO L495 AbstractCegarLoop]: Abstraction has 31886 states and 41339 transitions. [2023-12-22 02:12:57,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:12:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 31886 states and 41339 transitions. [2023-12-22 02:12:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-22 02:12:58,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:12:58,001 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:12:58,009 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 02:12:58,210 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 02:12:58,210 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:12:58,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:12:58,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1520115031, now seen corresponding path program 1 times [2023-12-22 02:12:58,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:12:58,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442793526] [2023-12-22 02:12:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:12:58,212 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 02:12:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:12:58,213 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 02:12:58,215 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 02:12:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:12:58,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 02:12:58,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:12:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:12:58,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:12:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:12:58,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:12:58,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442793526] [2023-12-22 02:12:58,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442793526] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:12:58,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:12:58,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 02:12:58,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272252688] [2023-12-22 02:12:58,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:12:58,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:12:58,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:12:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:12:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:12:58,620 INFO L87 Difference]: Start difference. First operand 31886 states and 41339 transitions. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states 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 02:13:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:13:01,133 INFO L93 Difference]: Finished difference Result 118634 states and 150567 transitions. [2023-12-22 02:13:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:13:01,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 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 120 [2023-12-22 02:13:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:13:01,250 INFO L225 Difference]: With dead ends: 118634 [2023-12-22 02:13:01,250 INFO L226 Difference]: Without dead ends: 88326 [2023-12-22 02:13:01,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:13:01,278 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 3055 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:13:01,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3055 Valid, 3397 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:13:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88326 states. [2023-12-22 02:13:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88326 to 86608. [2023-12-22 02:13:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86608 states, 86606 states have (on average 1.2361845599612036) internal successors, (107061), 86607 states have internal predecessors, (107061), 0 states have call successors, (0), 0 states 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 02:13:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86608 states to 86608 states and 107061 transitions. [2023-12-22 02:13:04,026 INFO L78 Accepts]: Start accepts. Automaton has 86608 states and 107061 transitions. Word has length 120 [2023-12-22 02:13:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:13:04,026 INFO L495 AbstractCegarLoop]: Abstraction has 86608 states and 107061 transitions. [2023-12-22 02:13:04,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states 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 02:13:04,026 INFO L276 IsEmpty]: Start isEmpty. Operand 86608 states and 107061 transitions. [2023-12-22 02:13:04,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 02:13:04,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:13:04,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:13:04,034 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 02:13:04,233 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 02:13:04,233 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:13:04,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:13:04,233 INFO L85 PathProgramCache]: Analyzing trace with hash -417932155, now seen corresponding path program 1 times [2023-12-22 02:13:04,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:13:04,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941423037] [2023-12-22 02:13:04,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:13:04,234 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 02:13:04,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:13:04,235 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 02:13:04,237 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 02:13:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:13:04,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:13:04,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:13:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-22 02:13:04,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:13:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-22 02:13:05,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:13:05,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941423037] [2023-12-22 02:13:05,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941423037] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:13:05,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:13:05,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2023-12-22 02:13:05,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190188516] [2023-12-22 02:13:05,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:13:05,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:13:05,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:13:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:13:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:13:05,470 INFO L87 Difference]: Start difference. First operand 86608 states and 107061 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 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 02:14:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:14:31,637 INFO L93 Difference]: Finished difference Result 91941 states and 115961 transitions. [2023-12-22 02:14:31,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:14:31,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 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 130 [2023-12-22 02:14:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:14:31,747 INFO L225 Difference]: With dead ends: 91941 [2023-12-22 02:14:31,747 INFO L226 Difference]: Without dead ends: 90437 [2023-12-22 02:14:31,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:14:31,771 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 3128 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5845 mSolverCounterSat, 2553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 8398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2553 IncrementalHoareTripleChecker+Valid, 5845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:14:31,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 195 Invalid, 8398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2553 Valid, 5845 Invalid, 0 Unknown, 0 Unchecked, 83.5s Time] [2023-12-22 02:14:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90437 states. [2023-12-22 02:14:34,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90437 to 90363. [2023-12-22 02:14:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.237857040094731) internal successors, (111854), 90362 states have internal predecessors, (111854), 0 states have call successors, (0), 0 states 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 02:14:34,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 111854 transitions. [2023-12-22 02:14:34,828 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 111854 transitions. Word has length 130 [2023-12-22 02:14:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:14:34,829 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 111854 transitions. [2023-12-22 02:14:34,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 4 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 02:14:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 111854 transitions. [2023-12-22 02:14:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-22 02:14:34,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:14:34,850 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:14:34,854 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 02:14:35,052 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 02:14:35,053 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:14:35,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:14:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1132120515, now seen corresponding path program 1 times [2023-12-22 02:14:35,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:14:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677179548] [2023-12-22 02:14:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:14:35,054 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 02:14:35,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:14:35,055 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 02:14:35,056 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 02:14:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:14:35,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:14:35,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:14:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 62 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:14:36,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:14:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 62 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:14:37,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:14:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677179548] [2023-12-22 02:14:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677179548] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:14:37,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:14:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:14:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842537782] [2023-12-22 02:14:37,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:14:37,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:14:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:14:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:14:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:14:37,444 INFO L87 Difference]: Start difference. First operand 90363 states and 111854 transitions. Second operand has 26 states, 26 states have (on average 12.384615384615385) internal successors, (322), 25 states have internal predecessors, (322), 0 states have call successors, (0), 0 states 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 02:14:42,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:14:42,275 INFO L93 Difference]: Finished difference Result 147407 states and 182553 transitions. [2023-12-22 02:14:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 02:14:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.384615384615385) internal successors, (322), 25 states have internal predecessors, (322), 0 states have call successors, (0), 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 177 [2023-12-22 02:14:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:14:42,391 INFO L225 Difference]: With dead ends: 147407 [2023-12-22 02:14:42,391 INFO L226 Difference]: Without dead ends: 91253 [2023-12-22 02:14:42,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 02:14:42,427 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 16699 mSDsluCounter, 6673 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16699 SdHoareTripleChecker+Valid, 8232 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:14:42,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16699 Valid, 8232 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 02:14:42,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91253 states. [2023-12-22 02:14:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91253 to 90363. [2023-12-22 02:14:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.2279744580073262) internal successors, (110961), 90362 states have internal predecessors, (110961), 0 states have call successors, (0), 0 states 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 02:14:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 110961 transitions. [2023-12-22 02:14:45,833 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 110961 transitions. Word has length 177 [2023-12-22 02:14:45,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:14:45,833 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 110961 transitions. [2023-12-22 02:14:45,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.384615384615385) internal successors, (322), 25 states have internal predecessors, (322), 0 states have call successors, (0), 0 states 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 02:14:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 110961 transitions. [2023-12-22 02:14:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-22 02:14:45,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:14:45,856 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:14:45,860 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 (31)] Ended with exit code 0 [2023-12-22 02:14:46,060 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 02:14:46,060 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:14:46,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:14:46,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1515721733, now seen corresponding path program 1 times [2023-12-22 02:14:46,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:14:46,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006174987] [2023-12-22 02:14:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:14:46,062 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 02:14:46,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:14:46,063 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 02:14:46,070 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 02:14:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:14:46,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:14:46,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:14:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 54 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:14:47,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:14:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 54 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:14:48,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:14:48,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006174987] [2023-12-22 02:14:48,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006174987] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:14:48,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:14:48,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:14:48,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382949542] [2023-12-22 02:14:48,193 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:14:48,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:14:48,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:14:48,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:14:48,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:14:48,194 INFO L87 Difference]: Start difference. First operand 90363 states and 110961 transitions. Second operand has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states 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 02:14:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:14:52,925 INFO L93 Difference]: Finished difference Result 147439 states and 182008 transitions. [2023-12-22 02:14:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:14:52,926 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 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 178 [2023-12-22 02:14:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:14:53,084 INFO L225 Difference]: With dead ends: 147439 [2023-12-22 02:14:53,085 INFO L226 Difference]: Without dead ends: 109757 [2023-12-22 02:14:53,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:14:53,122 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 17087 mSDsluCounter, 8337 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17087 SdHoareTripleChecker+Valid, 9896 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:14:53,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17087 Valid, 9896 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 02:14:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109757 states. [2023-12-22 02:14:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109757 to 90363. [2023-12-22 02:14:56,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.2233707019621296) internal successors, (110545), 90362 states have internal predecessors, (110545), 0 states have call successors, (0), 0 states 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 02:14:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 110545 transitions. [2023-12-22 02:14:56,873 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 110545 transitions. Word has length 178 [2023-12-22 02:14:56,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:14:56,873 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 110545 transitions. [2023-12-22 02:14:56,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states 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 02:14:56,874 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 110545 transitions. [2023-12-22 02:14:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-22 02:14:56,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:14:56,891 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:14:56,894 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:14:57,094 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 02:14:57,095 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:14:57,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:14:57,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1735729581, now seen corresponding path program 1 times [2023-12-22 02:14:57,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:14:57,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309150401] [2023-12-22 02:14:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:14:57,096 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 02:14:57,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:14:57,097 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 02:14:57,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 02:14:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:14:57,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:14:57,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:14:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 46 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:14:58,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:14:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 46 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:14:59,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:14:59,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309150401] [2023-12-22 02:14:59,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309150401] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:14:59,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:14:59,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:14:59,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662848687] [2023-12-22 02:14:59,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:14:59,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:14:59,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:14:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:14:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:14:59,154 INFO L87 Difference]: Start difference. First operand 90363 states and 110545 transitions. Second operand has 26 states, 26 states have (on average 12.846153846153847) internal successors, (334), 25 states have internal predecessors, (334), 0 states have call successors, (0), 0 states 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 02:15:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:15:04,279 INFO L93 Difference]: Finished difference Result 143239 states and 176052 transitions. [2023-12-22 02:15:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:15:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.846153846153847) internal successors, (334), 25 states have internal predecessors, (334), 0 states have call successors, (0), 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 179 [2023-12-22 02:15:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:15:04,459 INFO L225 Difference]: With dead ends: 143239 [2023-12-22 02:15:04,459 INFO L226 Difference]: Without dead ends: 106445 [2023-12-22 02:15:04,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:15:04,493 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 15487 mSDsluCounter, 8190 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15487 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:15:04,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15487 Valid, 9749 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 02:15:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106445 states. [2023-12-22 02:15:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106445 to 90363. [2023-12-22 02:15:08,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.2185898783767333) internal successors, (110113), 90362 states have internal predecessors, (110113), 0 states have call successors, (0), 0 states 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 02:15:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 110113 transitions. [2023-12-22 02:15:08,333 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 110113 transitions. Word has length 179 [2023-12-22 02:15:08,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:15:08,334 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 110113 transitions. [2023-12-22 02:15:08,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.846153846153847) internal successors, (334), 25 states have internal predecessors, (334), 0 states have call successors, (0), 0 states 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 02:15:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 110113 transitions. [2023-12-22 02:15:08,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-22 02:15:08,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:15:08,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:15:08,357 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 (33)] Forceful destruction successful, exit code 0 [2023-12-22 02:15:08,555 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 02:15:08,555 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:15:08,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:15:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash 909832843, now seen corresponding path program 1 times [2023-12-22 02:15:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:15:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117884459] [2023-12-22 02:15:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:15:08,557 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 02:15:08,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:15:08,558 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 02:15:08,559 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 02:15:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:15:08,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:15:08,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:15:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 38 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:10,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:15:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 38 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:10,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:15:10,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117884459] [2023-12-22 02:15:10,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117884459] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:15:10,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:15:10,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:15:10,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517443632] [2023-12-22 02:15:10,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:15:10,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:15:10,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:15:10,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:15:10,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:15:10,758 INFO L87 Difference]: Start difference. First operand 90363 states and 110113 transitions. Second operand has 26 states, 26 states have (on average 13.076923076923077) internal successors, (340), 25 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 02:15:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:15:15,750 INFO L93 Difference]: Finished difference Result 138559 states and 169472 transitions. [2023-12-22 02:15:15,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:15:15,751 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.076923076923077) internal successors, (340), 25 states have internal predecessors, (340), 0 states have call successors, (0), 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 180 [2023-12-22 02:15:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:15:15,899 INFO L225 Difference]: With dead ends: 138559 [2023-12-22 02:15:15,899 INFO L226 Difference]: Without dead ends: 102797 [2023-12-22 02:15:15,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:15:15,934 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 16912 mSDsluCounter, 6653 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16912 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:15:15,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16912 Valid, 8212 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 02:15:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102797 states. [2023-12-22 02:15:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102797 to 90363. [2023-12-22 02:15:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.213720521021237) internal successors, (109673), 90362 states have internal predecessors, (109673), 0 states have call successors, (0), 0 states 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 02:15:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 109673 transitions. [2023-12-22 02:15:19,932 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 109673 transitions. Word has length 180 [2023-12-22 02:15:19,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:15:19,932 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 109673 transitions. [2023-12-22 02:15:19,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.076923076923077) internal successors, (340), 25 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 02:15:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 109673 transitions. [2023-12-22 02:15:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-22 02:15:19,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:15:19,965 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:15:19,974 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 02:15:20,169 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 02:15:20,170 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:15:20,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:15:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2030987491, now seen corresponding path program 1 times [2023-12-22 02:15:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:15:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507423182] [2023-12-22 02:15:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:15:20,171 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 02:15:20,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:15:20,172 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 02:15:20,174 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 02:15:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:15:20,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:15:20,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:15:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 30 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:21,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:15:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 30 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:22,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:15:22,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507423182] [2023-12-22 02:15:22,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507423182] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:15:22,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:15:22,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:15:22,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538681348] [2023-12-22 02:15:22,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:15:22,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:15:22,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:15:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:15:22,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:15:22,428 INFO L87 Difference]: Start difference. First operand 90363 states and 109673 transitions. Second operand has 26 states, 26 states have (on average 13.307692307692308) internal successors, (346), 25 states have internal predecessors, (346), 0 states have call successors, (0), 0 states 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 02:15:28,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:15:28,185 INFO L93 Difference]: Finished difference Result 133639 states and 162580 transitions. [2023-12-22 02:15:28,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:15:28,186 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.307692307692308) internal successors, (346), 25 states have internal predecessors, (346), 0 states have call successors, (0), 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 181 [2023-12-22 02:15:28,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:15:28,326 INFO L225 Difference]: With dead ends: 133639 [2023-12-22 02:15:28,326 INFO L226 Difference]: Without dead ends: 98981 [2023-12-22 02:15:28,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:15:28,354 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 13886 mSDsluCounter, 9746 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13886 SdHoareTripleChecker+Valid, 11305 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:15:28,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13886 Valid, 11305 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 02:15:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98981 states. [2023-12-22 02:15:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98981 to 90363. [2023-12-22 02:15:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.2088068967806909) internal successors, (109229), 90362 states have internal predecessors, (109229), 0 states have call successors, (0), 0 states 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 02:15:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 109229 transitions. [2023-12-22 02:15:32,439 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 109229 transitions. Word has length 181 [2023-12-22 02:15:32,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:15:32,439 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 109229 transitions. [2023-12-22 02:15:32,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.307692307692308) internal successors, (346), 25 states have internal predecessors, (346), 0 states have call successors, (0), 0 states 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 02:15:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 109229 transitions. [2023-12-22 02:15:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-22 02:15:32,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:15:32,457 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:15:32,461 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 02:15:32,659 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 02:15:32,659 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:15:32,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:15:32,660 INFO L85 PathProgramCache]: Analyzing trace with hash 316344603, now seen corresponding path program 1 times [2023-12-22 02:15:32,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:15:32,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379298905] [2023-12-22 02:15:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:15:32,661 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 02:15:32,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:15:32,662 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 02:15:32,664 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 02:15:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:15:32,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 02:15:32,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:15:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 22 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:34,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:15:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 22 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:34,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:15:34,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379298905] [2023-12-22 02:15:34,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379298905] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:15:34,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:15:34,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 02:15:34,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910522097] [2023-12-22 02:15:34,890 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:15:34,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:15:34,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:15:34,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:15:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:15:34,892 INFO L87 Difference]: Start difference. First operand 90363 states and 109229 transitions. Second operand has 26 states, 26 states have (on average 13.538461538461538) internal successors, (352), 25 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 02:15:40,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:15:40,503 INFO L93 Difference]: Finished difference Result 128605 states and 155539 transitions. [2023-12-22 02:15:40,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 02:15:40,504 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.538461538461538) internal successors, (352), 25 states have internal predecessors, (352), 0 states have call successors, (0), 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 182 [2023-12-22 02:15:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:15:40,624 INFO L225 Difference]: With dead ends: 128605 [2023-12-22 02:15:40,624 INFO L226 Difference]: Without dead ends: 95081 [2023-12-22 02:15:40,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 02:15:40,653 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 18370 mSDsluCounter, 9638 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18370 SdHoareTripleChecker+Valid, 11197 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:15:40,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18370 Valid, 11197 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 02:15:40,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95081 states. [2023-12-22 02:15:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95081 to 90363. [2023-12-22 02:15:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90363 states, 90361 states have (on average 1.2038711390976196) internal successors, (108783), 90362 states have internal predecessors, (108783), 0 states have call successors, (0), 0 states 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 02:15:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90363 states to 90363 states and 108783 transitions. [2023-12-22 02:15:44,892 INFO L78 Accepts]: Start accepts. Automaton has 90363 states and 108783 transitions. Word has length 182 [2023-12-22 02:15:44,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:15:44,892 INFO L495 AbstractCegarLoop]: Abstraction has 90363 states and 108783 transitions. [2023-12-22 02:15:44,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.538461538461538) internal successors, (352), 25 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 02:15:44,892 INFO L276 IsEmpty]: Start isEmpty. Operand 90363 states and 108783 transitions. [2023-12-22 02:15:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 02:15:44,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:15:44,910 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:15:44,914 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 02:15:45,114 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 02:15:45,114 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:15:45,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:15:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1426875415, now seen corresponding path program 1 times [2023-12-22 02:15:45,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:15:45,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613237212] [2023-12-22 02:15:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:15:45,115 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 02:15:45,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:15:45,116 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 02:15:45,119 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 02:15:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:15:45,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:15:45,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:15:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 22 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:46,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:15:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 22 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:15:47,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:15:47,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613237212] [2023-12-22 02:15:47,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613237212] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:15:47,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:15:47,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:15:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694460459] [2023-12-22 02:15:47,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:15:47,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:15:47,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:15:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:15:47,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:15:47,840 INFO L87 Difference]: Start difference. First operand 90363 states and 108783 transitions. Second operand has 26 states, 26 states have (on average 13.653846153846153) internal successors, (355), 26 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 02:15:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:15:59,029 INFO L93 Difference]: Finished difference Result 141999 states and 170181 transitions. [2023-12-22 02:15:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:15:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.653846153846153) internal successors, (355), 26 states have internal predecessors, (355), 0 states have call successors, (0), 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 183 [2023-12-22 02:15:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:15:59,213 INFO L225 Difference]: With dead ends: 141999 [2023-12-22 02:15:59,214 INFO L226 Difference]: Without dead ends: 128045 [2023-12-22 02:15:59,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:15:59,251 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 2415 mSDsluCounter, 22789 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 24462 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:15:59,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 24462 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 02:15:59,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128045 states. [2023-12-22 02:16:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128045 to 64107. [2023-12-22 02:16:03,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64107 states, 64105 states have (on average 1.2092348490757352) internal successors, (77518), 64106 states have internal predecessors, (77518), 0 states have call successors, (0), 0 states 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 02:16:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64107 states to 64107 states and 77518 transitions. [2023-12-22 02:16:03,129 INFO L78 Accepts]: Start accepts. Automaton has 64107 states and 77518 transitions. Word has length 183 [2023-12-22 02:16:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:16:03,129 INFO L495 AbstractCegarLoop]: Abstraction has 64107 states and 77518 transitions. [2023-12-22 02:16:03,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.653846153846153) internal successors, (355), 26 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 02:16:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 64107 states and 77518 transitions. [2023-12-22 02:16:03,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 02:16:03,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:16:03,138 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:16:03,176 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 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:16:03,340 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 02:16:03,341 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:16:03,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:16:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1072169843, now seen corresponding path program 1 times [2023-12-22 02:16:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:16:03,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958195256] [2023-12-22 02:16:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:16:03,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:16:03,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:16:03,344 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 02:16:03,344 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 02:16:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:16:03,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:16:03,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:16:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 13 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:16:05,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:16:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 13 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:16:06,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:16:06,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958195256] [2023-12-22 02:16:06,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958195256] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:16:06,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:16:06,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:16:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855841645] [2023-12-22 02:16:06,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:16:06,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:16:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:16:06,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:16:06,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:16:06,108 INFO L87 Difference]: Start difference. First operand 64107 states and 77518 transitions. Second operand has 26 states, 26 states have (on average 13.846153846153847) internal successors, (360), 26 states have internal predecessors, (360), 0 states have call successors, (0), 0 states 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 02:16:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:16:18,934 INFO L93 Difference]: Finished difference Result 163477 states and 194482 transitions. [2023-12-22 02:16:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 02:16:18,935 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.846153846153847) internal successors, (360), 26 states have internal predecessors, (360), 0 states have call successors, (0), 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 183 [2023-12-22 02:16:18,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:16:19,107 INFO L225 Difference]: With dead ends: 163477 [2023-12-22 02:16:19,107 INFO L226 Difference]: Without dead ends: 134843 [2023-12-22 02:16:19,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 02:16:19,126 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 2303 mSDsluCounter, 22549 mSDsCounter, 0 mSdLazyCounter, 2565 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 24209 SdHoareTripleChecker+Invalid, 2580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:16:19,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 24209 Invalid, 2580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2565 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-22 02:16:19,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134843 states. [2023-12-22 02:16:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134843 to 73945. [2023-12-22 02:16:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73945 states, 73943 states have (on average 1.2018581880637789) internal successors, (88869), 73944 states have internal predecessors, (88869), 0 states have call successors, (0), 0 states 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 02:16:24,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73945 states to 73945 states and 88869 transitions. [2023-12-22 02:16:24,018 INFO L78 Accepts]: Start accepts. Automaton has 73945 states and 88869 transitions. Word has length 183 [2023-12-22 02:16:24,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:16:24,019 INFO L495 AbstractCegarLoop]: Abstraction has 73945 states and 88869 transitions. [2023-12-22 02:16:24,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.846153846153847) internal successors, (360), 26 states have internal predecessors, (360), 0 states have call successors, (0), 0 states 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 02:16:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 73945 states and 88869 transitions. [2023-12-22 02:16:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 02:16:24,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:16:24,029 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:16:24,037 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 (38)] Forceful destruction successful, exit code 0 [2023-12-22 02:16:24,234 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 02:16:24,234 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:16:24,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:16:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1082209805, now seen corresponding path program 1 times [2023-12-22 02:16:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:16:24,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544321694] [2023-12-22 02:16:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:16:24,235 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 02:16:24,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:16:24,237 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 02:16:24,242 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 02:16:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:16:24,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:16:24,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:16:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 31 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:16:26,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:16:26,988 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 31 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:16:26,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:16:26,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544321694] [2023-12-22 02:16:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544321694] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:16:26,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:16:26,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:16:26,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254628823] [2023-12-22 02:16:26,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:16:26,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:16:26,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:16:26,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:16:26,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:16:26,990 INFO L87 Difference]: Start difference. First operand 73945 states and 88869 transitions. Second operand has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 26 states have internal predecessors, (350), 0 states have call successors, (0), 0 states 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 02:16:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:16:39,454 INFO L93 Difference]: Finished difference Result 127466 states and 152389 transitions. [2023-12-22 02:16:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:16:39,454 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 26 states have internal predecessors, (350), 0 states have call successors, (0), 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 183 [2023-12-22 02:16:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:16:39,611 INFO L225 Difference]: With dead ends: 127466 [2023-12-22 02:16:39,611 INFO L226 Difference]: Without dead ends: 112392 [2023-12-22 02:16:39,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:16:39,640 INFO L413 NwaCegarLoop]: 1683 mSDtfsCounter, 3817 mSDsluCounter, 26126 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3817 SdHoareTripleChecker+Valid, 27809 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:16:39,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3817 Valid, 27809 Invalid, 3244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-22 02:16:39,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112392 states. [2023-12-22 02:16:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112392 to 93402. [2023-12-22 02:16:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93402 states, 93400 states have (on average 1.1978693790149892) internal successors, (111881), 93401 states have internal predecessors, (111881), 0 states have call successors, (0), 0 states 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 02:16:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93402 states to 93402 states and 111881 transitions. [2023-12-22 02:16:45,391 INFO L78 Accepts]: Start accepts. Automaton has 93402 states and 111881 transitions. Word has length 183 [2023-12-22 02:16:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:16:45,391 INFO L495 AbstractCegarLoop]: Abstraction has 93402 states and 111881 transitions. [2023-12-22 02:16:45,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.461538461538462) internal successors, (350), 26 states have internal predecessors, (350), 0 states have call successors, (0), 0 states 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 02:16:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 93402 states and 111881 transitions. [2023-12-22 02:16:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 02:16:45,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:16:45,402 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:16:45,408 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 02:16:45,606 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 02:16:45,606 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:16:45,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:16:45,607 INFO L85 PathProgramCache]: Analyzing trace with hash -584209001, now seen corresponding path program 1 times [2023-12-22 02:16:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:16:45,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120025087] [2023-12-22 02:16:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:16:45,607 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 02:16:45,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:16:45,608 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 02:16:45,610 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 02:16:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:16:45,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:16:45,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:16:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 40 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:16:47,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:16:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 40 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:16:48,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:16:48,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120025087] [2023-12-22 02:16:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120025087] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:16:48,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:16:48,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:16:48,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712202151] [2023-12-22 02:16:48,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:16:48,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:16:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:16:48,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:16:48,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:16:48,145 INFO L87 Difference]: Start difference. First operand 93402 states and 111881 transitions. Second operand has 26 states, 26 states have (on average 13.26923076923077) internal successors, (345), 26 states have internal predecessors, (345), 0 states have call successors, (0), 0 states 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 02:17:01,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:01,274 INFO L93 Difference]: Finished difference Result 166278 states and 198379 transitions. [2023-12-22 02:17:01,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:17:01,274 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.26923076923077) internal successors, (345), 26 states have internal predecessors, (345), 0 states have call successors, (0), 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 183 [2023-12-22 02:17:01,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:01,502 INFO L225 Difference]: With dead ends: 166278 [2023-12-22 02:17:01,503 INFO L226 Difference]: Without dead ends: 145860 [2023-12-22 02:17:01,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:17:01,540 INFO L413 NwaCegarLoop]: 1697 mSDtfsCounter, 2307 mSDsluCounter, 24667 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 26364 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:01,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 26364 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 02:17:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145860 states. [2023-12-22 02:17:08,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145860 to 117921. [2023-12-22 02:17:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117921 states, 117919 states have (on average 1.1944300748819106) internal successors, (140846), 117920 states have internal predecessors, (140846), 0 states have call successors, (0), 0 states 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 02:17:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117921 states to 117921 states and 140846 transitions. [2023-12-22 02:17:09,081 INFO L78 Accepts]: Start accepts. Automaton has 117921 states and 140846 transitions. Word has length 183 [2023-12-22 02:17:09,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:09,081 INFO L495 AbstractCegarLoop]: Abstraction has 117921 states and 140846 transitions. [2023-12-22 02:17:09,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.26923076923077) internal successors, (345), 26 states have internal predecessors, (345), 0 states have call successors, (0), 0 states 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 02:17:09,082 INFO L276 IsEmpty]: Start isEmpty. Operand 117921 states and 140846 transitions. [2023-12-22 02:17:09,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 02:17:09,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:09,094 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:17:09,100 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 02:17:09,298 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 02:17:09,298 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:09,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:09,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1875939213, now seen corresponding path program 1 times [2023-12-22 02:17:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098321986] [2023-12-22 02:17:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:09,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:17:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:09,301 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 02:17:09,316 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 02:17:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:09,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:17:09,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 49 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:11,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:17:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 49 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:12,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:12,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098321986] [2023-12-22 02:17:12,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098321986] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:17:12,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:17:12,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:17:12,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830170593] [2023-12-22 02:17:12,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:17:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:17:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:17:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:17:12,037 INFO L87 Difference]: Start difference. First operand 117921 states and 140846 transitions. Second operand has 26 states, 26 states have (on average 13.076923076923077) internal successors, (340), 26 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 02:17:27,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:27,086 INFO L93 Difference]: Finished difference Result 214724 states and 255806 transitions. [2023-12-22 02:17:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 02:17:27,087 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.076923076923077) internal successors, (340), 26 states have internal predecessors, (340), 0 states have call successors, (0), 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 183 [2023-12-22 02:17:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:27,295 INFO L225 Difference]: With dead ends: 214724 [2023-12-22 02:17:27,295 INFO L226 Difference]: Without dead ends: 187058 [2023-12-22 02:17:27,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 02:17:27,339 INFO L413 NwaCegarLoop]: 1711 mSDtfsCounter, 4229 mSDsluCounter, 21557 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4229 SdHoareTripleChecker+Valid, 23268 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:27,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4229 Valid, 23268 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-22 02:17:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187058 states. [2023-12-22 02:17:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187058 to 147719. [2023-12-22 02:17:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147719 states, 147717 states have (on average 1.1913659226764692) internal successors, (175985), 147718 states have internal predecessors, (175985), 0 states have call successors, (0), 0 states 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 02:17:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147719 states to 147719 states and 175985 transitions. [2023-12-22 02:17:36,786 INFO L78 Accepts]: Start accepts. Automaton has 147719 states and 175985 transitions. Word has length 183 [2023-12-22 02:17:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:17:36,787 INFO L495 AbstractCegarLoop]: Abstraction has 147719 states and 175985 transitions. [2023-12-22 02:17:36,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.076923076923077) internal successors, (340), 26 states have internal predecessors, (340), 0 states have call successors, (0), 0 states 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 02:17:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 147719 states and 175985 transitions. [2023-12-22 02:17:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-22 02:17:36,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:17:36,803 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:17:36,809 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 02:17:37,007 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 02:17:37,007 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:17:37,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:17:37,008 INFO L85 PathProgramCache]: Analyzing trace with hash 425793303, now seen corresponding path program 1 times [2023-12-22 02:17:37,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:17:37,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962423217] [2023-12-22 02:17:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:17:37,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:17:37,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:17:37,010 INFO L229 MonitoredProcess]: Starting monitored process 42 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 02:17:37,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 02:17:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:17:37,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 02:17:37,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:17:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 58 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:38,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:17:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 58 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:17:39,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:17:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962423217] [2023-12-22 02:17:39,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962423217] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:17:39,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:17:39,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 02:17:39,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392535162] [2023-12-22 02:17:39,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:17:39,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 02:17:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:17:39,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 02:17:39,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 02:17:39,381 INFO L87 Difference]: Start difference. First operand 147719 states and 175985 transitions. Second operand has 26 states, 26 states have (on average 12.884615384615385) internal successors, (335), 26 states have internal predecessors, (335), 0 states have call successors, (0), 0 states 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 02:17:58,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:17:58,416 INFO L93 Difference]: Finished difference Result 272326 states and 323089 transitions. [2023-12-22 02:17:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 02:17:58,416 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.884615384615385) internal successors, (335), 26 states have internal predecessors, (335), 0 states have call successors, (0), 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 183 [2023-12-22 02:17:58,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:17:58,930 INFO L225 Difference]: With dead ends: 272326 [2023-12-22 02:17:58,931 INFO L226 Difference]: Without dead ends: 234904 [2023-12-22 02:17:59,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 02:17:59,013 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 5683 mSDsluCounter, 23096 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 24809 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:17:59,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5683 Valid, 24809 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-22 02:17:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234904 states.