/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.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:11:14,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:11:14,700 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 00:11:14,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:11:14,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:11:14,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:11:14,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:11:14,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:11:14,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:11:14,731 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:11:14,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:11:14,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:11:14,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:11:14,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:11:14,732 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:11:14,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:11:14,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:11:14,733 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:11:14,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:11:14,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:11:14,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:11:14,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:11:14,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:11:14,735 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:11:14,735 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:11:14,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:11:14,735 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:11:14,736 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:11:14,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:11:14,736 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:11:14,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:11:14,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:11:14,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:11:14,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:11:14,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:11:14,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:11:14,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:11:14,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:11:14,738 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:11:14,738 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:11:14,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:11:14,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:11:14,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:11:14,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:11:14,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:11:14,739 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:11:14,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:11:14,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:11:14,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:11:14,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:11:14,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:11:14,964 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:11:14,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-22 00:11:16,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:11:16,479 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:11:16,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-22 00:11:16,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9743cc4cc/dd22be84678e40919a868cb293aebc7d/FLAGb35e6cb9e [2023-12-22 00:11:16,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9743cc4cc/dd22be84678e40919a868cb293aebc7d [2023-12-22 00:11:16,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:11:16,519 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:11:16,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:11:16,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:11:16,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:11:16,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:11:16" (1/1) ... [2023-12-22 00:11:16,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416cec19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:16, skipping insertion in model container [2023-12-22 00:11:16,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:11:16" (1/1) ... [2023-12-22 00:11:16,613 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:11:16,890 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.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c[8749,8762] [2023-12-22 00:11:16,944 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.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c[14304,14317] [2023-12-22 00:11:17,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:11:17,533 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:11:17,564 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.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c[8749,8762] [2023-12-22 00:11:17,573 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.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c[14304,14317] [2023-12-22 00:11:17,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:11:17,956 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:11:17,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17 WrapperNode [2023-12-22 00:11:17,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:11:17,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:11:17,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:11:17,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:11:17,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,180 INFO L138 Inliner]: procedures = 37, calls = 21, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 5015 [2023-12-22 00:11:18,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:11:18,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:11:18,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:11:18,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:11:18,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,265 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 00:11:18,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,331 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:11:18,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:11:18,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:11:18,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:11:18,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (1/1) ... [2023-12-22 00:11:18,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:11:18,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:11:18,498 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 00:11:18,501 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 00:11:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:11:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:11:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:11:18,609 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:11:18,610 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:11:55,153 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:11:55,328 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:11:55,329 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:11:55,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:11:55 BoogieIcfgContainer [2023-12-22 00:11:55,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:11:55,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:11:55,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:11:55,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:11:55,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:11:16" (1/3) ... [2023-12-22 00:11:55,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b03182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:11:55, skipping insertion in model container [2023-12-22 00:11:55,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:11:17" (2/3) ... [2023-12-22 00:11:55,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b03182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:11:55, skipping insertion in model container [2023-12-22 00:11:55,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:11:55" (3/3) ... [2023-12-22 00:11:55,339 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals+Problem12_label01.c [2023-12-22 00:11:55,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:11:55,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:11:55,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:11:55,503 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;@31fd15c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:11:55,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:11:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 822 states, 819 states have (on average 1.9768009768009769) internal successors, (1619), 821 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:11:55,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:55,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:11:55,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:55,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:55,530 INFO L85 PathProgramCache]: Analyzing trace with hash -480425097, now seen corresponding path program 1 times [2023-12-22 00:11:55,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:55,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297028953] [2023-12-22 00:11:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:55,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:55,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:55,551 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 00:11:55,554 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 00:11:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:55,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:11:55,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:55,669 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 00:11:55,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:55,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:55,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297028953] [2023-12-22 00:11:55,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297028953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:55,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:55,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:11:55,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840353290] [2023-12-22 00:11:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:55,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:11:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:11:55,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:11:55,706 INFO L87 Difference]: Start difference. First operand has 822 states, 819 states have (on average 1.9768009768009769) internal successors, (1619), 821 states have internal predecessors, (1619), 0 states have call successors, (0), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:55,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:55,788 INFO L93 Difference]: Finished difference Result 1616 states and 3185 transitions. [2023-12-22 00:11:55,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:11:55,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-22 00:11:55,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:55,802 INFO L225 Difference]: With dead ends: 1616 [2023-12-22 00:11:55,803 INFO L226 Difference]: Without dead ends: 818 [2023-12-22 00:11:55,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 00:11:55,815 INFO L413 NwaCegarLoop]: 1547 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, 1547 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 00:11:55,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1547 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:55,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-22 00:11:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2023-12-22 00:11:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 816 states have (on average 1.8970588235294117) internal successors, (1548), 817 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1548 transitions. [2023-12-22 00:11:55,889 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1548 transitions. Word has length 19 [2023-12-22 00:11:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:55,890 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1548 transitions. [2023-12-22 00:11:55,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1548 transitions. [2023-12-22 00:11:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:11:55,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:55,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:11:55,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 00:11:56,095 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 00:11:56,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:56,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1760288775, now seen corresponding path program 1 times [2023-12-22 00:11:56,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:56,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485843171] [2023-12-22 00:11:56,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:56,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:56,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:56,100 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 00:11:56,101 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 00:11:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:56,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:11:56,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:56,259 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 00:11:56,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:56,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485843171] [2023-12-22 00:11:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485843171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:56,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:56,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:11:56,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924722557] [2023-12-22 00:11:56,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:56,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:11:56,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:56,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:11:56,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:11:56,266 INFO L87 Difference]: Start difference. First operand 818 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:56,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:56,359 INFO L93 Difference]: Finished difference Result 858 states and 1610 transitions. [2023-12-22 00:11:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:11:56,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-22 00:11:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:56,365 INFO L225 Difference]: With dead ends: 858 [2023-12-22 00:11:56,365 INFO L226 Difference]: Without dead ends: 818 [2023-12-22 00:11:56,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 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 00:11:56,367 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:11:56,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4608 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-22 00:11:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2023-12-22 00:11:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 816 states have (on average 1.8688725490196079) internal successors, (1525), 817 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1525 transitions. [2023-12-22 00:11:56,390 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1525 transitions. Word has length 19 [2023-12-22 00:11:56,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:56,390 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1525 transitions. [2023-12-22 00:11:56,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1525 transitions. [2023-12-22 00:11:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 00:11:56,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:56,395 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] [2023-12-22 00:11:56,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 00:11:56,598 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 00:11:56,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:56,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash -531396108, now seen corresponding path program 1 times [2023-12-22 00:11:56,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:56,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102098832] [2023-12-22 00:11:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:56,602 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 00:11:56,604 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 00:11:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:56,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:11:56,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:56,965 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 00:11:56,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:56,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102098832] [2023-12-22 00:11:56,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102098832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:56,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:56,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:11:56,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184723279] [2023-12-22 00:11:56,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:56,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:11:56,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:56,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:11:56,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:11:56,967 INFO L87 Difference]: Start difference. First operand 818 states and 1525 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:57,128 INFO L93 Difference]: Finished difference Result 1003 states and 1820 transitions. [2023-12-22 00:11:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:11:57,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-22 00:11:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:57,133 INFO L225 Difference]: With dead ends: 1003 [2023-12-22 00:11:57,133 INFO L226 Difference]: Without dead ends: 966 [2023-12-22 00:11:57,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:11:57,136 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 4621 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4621 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:11:57,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4621 Valid, 1776 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:11:57,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-12-22 00:11:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 888. [2023-12-22 00:11:57,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 886 states have (on average 1.8487584650112867) internal successors, (1638), 887 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1638 transitions. [2023-12-22 00:11:57,153 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1638 transitions. Word has length 41 [2023-12-22 00:11:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:57,154 INFO L495 AbstractCegarLoop]: Abstraction has 888 states and 1638 transitions. [2023-12-22 00:11:57,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1638 transitions. [2023-12-22 00:11:57,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-22 00:11:57,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:57,157 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] [2023-12-22 00:11:57,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 00:11:57,372 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 00:11:57,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:57,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:57,375 INFO L85 PathProgramCache]: Analyzing trace with hash 304915364, now seen corresponding path program 1 times [2023-12-22 00:11:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:57,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761853358] [2023-12-22 00:11:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:57,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:57,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:57,377 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 00:11:57,390 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 00:11:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:57,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:11:57,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:57,497 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 00:11:57,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:57,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761853358] [2023-12-22 00:11:57,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761853358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:57,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:57,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:11:57,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851586232] [2023-12-22 00:11:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:57,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:11:57,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:11:57,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:57,503 INFO L87 Difference]: Start difference. First operand 888 states and 1638 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:57,547 INFO L93 Difference]: Finished difference Result 1086 states and 1954 transitions. [2023-12-22 00:11:57,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:11:57,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2023-12-22 00:11:57,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:57,552 INFO L225 Difference]: With dead ends: 1086 [2023-12-22 00:11:57,552 INFO L226 Difference]: Without dead ends: 979 [2023-12-22 00:11:57,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:57,555 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1474 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:11:57,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1569 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:57,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-22 00:11:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 974. [2023-12-22 00:11:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 972 states have (on average 1.8209876543209877) internal successors, (1770), 973 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1770 transitions. [2023-12-22 00:11:57,618 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1770 transitions. Word has length 43 [2023-12-22 00:11:57,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:57,619 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1770 transitions. [2023-12-22 00:11:57,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,619 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1770 transitions. [2023-12-22 00:11:57,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-22 00:11:57,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:57,619 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] [2023-12-22 00:11:57,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 00:11:57,823 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 00:11:57,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:57,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:57,824 INFO L85 PathProgramCache]: Analyzing trace with hash 800522788, now seen corresponding path program 1 times [2023-12-22 00:11:57,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:57,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891859381] [2023-12-22 00:11:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:57,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:57,826 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 00:11:57,828 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 00:11:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:57,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:11:57,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:57,913 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 00:11:57,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:57,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891859381] [2023-12-22 00:11:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891859381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:57,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:57,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:11:57,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747363051] [2023-12-22 00:11:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:57,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:11:57,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:57,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:11:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:11:57,916 INFO L87 Difference]: Start difference. First operand 974 states and 1770 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:57,981 INFO L93 Difference]: Finished difference Result 988 states and 1787 transitions. [2023-12-22 00:11:57,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:11:57,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2023-12-22 00:11:57,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:57,987 INFO L225 Difference]: With dead ends: 988 [2023-12-22 00:11:57,987 INFO L226 Difference]: Without dead ends: 986 [2023-12-22 00:11:57,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 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 00:11:57,988 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4555 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 00:11:57,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4555 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:57,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-12-22 00:11:58,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 982. [2023-12-22 00:11:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 980 states have (on average 1.813265306122449) internal successors, (1777), 981 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1777 transitions. [2023-12-22 00:11:58,011 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1777 transitions. Word has length 44 [2023-12-22 00:11:58,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:58,012 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 1777 transitions. [2023-12-22 00:11:58,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,012 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1777 transitions. [2023-12-22 00:11:58,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:11:58,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:58,013 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] [2023-12-22 00:11:58,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 00:11:58,217 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 00:11:58,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:58,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2039911804, now seen corresponding path program 1 times [2023-12-22 00:11:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:58,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999753259] [2023-12-22 00:11:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:58,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:58,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:58,220 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 00:11:58,223 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 00:11:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:58,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:11:58,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:11:58,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:58,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999753259] [2023-12-22 00:11:58,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999753259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:58,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:58,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:11:58,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563068080] [2023-12-22 00:11:58,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:58,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:11:58,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:58,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:11:58,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:58,359 INFO L87 Difference]: Start difference. First operand 982 states and 1777 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:58,398 INFO L93 Difference]: Finished difference Result 1360 states and 2357 transitions. [2023-12-22 00:11:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:11:58,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:11:58,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:58,403 INFO L225 Difference]: With dead ends: 1360 [2023-12-22 00:11:58,403 INFO L226 Difference]: Without dead ends: 1159 [2023-12-22 00:11:58,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:58,404 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1485 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1620 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 00:11:58,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1620 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2023-12-22 00:11:58,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2023-12-22 00:11:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1155 states have (on average 1.7653679653679655) internal successors, (2039), 1156 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 2039 transitions. [2023-12-22 00:11:58,429 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 2039 transitions. Word has length 45 [2023-12-22 00:11:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:58,430 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 2039 transitions. [2023-12-22 00:11:58,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 2039 transitions. [2023-12-22 00:11:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:11:58,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:58,431 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] [2023-12-22 00:11:58,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-22 00:11:58,635 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 00:11:58,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:58,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1414255740, now seen corresponding path program 1 times [2023-12-22 00:11:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612143890] [2023-12-22 00:11:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:58,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:58,653 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 00:11:58,727 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 00:11:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:58,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:11:58,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:58,833 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 00:11:58,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:58,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:58,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612143890] [2023-12-22 00:11:58,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612143890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:58,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:58,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:11:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407533958] [2023-12-22 00:11:58,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:58,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:11:58,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:58,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:11:58,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:58,836 INFO L87 Difference]: Start difference. First operand 1157 states and 2039 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:58,880 INFO L93 Difference]: Finished difference Result 1861 states and 3101 transitions. [2023-12-22 00:11:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:11:58,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:11:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:58,886 INFO L225 Difference]: With dead ends: 1861 [2023-12-22 00:11:58,887 INFO L226 Difference]: Without dead ends: 1485 [2023-12-22 00:11:58,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:58,889 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1483 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1622 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 00:11:58,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1622 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-12-22 00:11:58,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1483. [2023-12-22 00:11:58,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1481 states have (on average 1.6981769074949358) internal successors, (2515), 1482 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2515 transitions. [2023-12-22 00:11:58,926 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2515 transitions. Word has length 45 [2023-12-22 00:11:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:58,926 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 2515 transitions. [2023-12-22 00:11:58,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2515 transitions. [2023-12-22 00:11:58,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:11:58,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:58,927 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] [2023-12-22 00:11:58,943 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 00:11:59,131 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 00:11:59,132 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:59,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1991978116, now seen corresponding path program 1 times [2023-12-22 00:11:59,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:59,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291048053] [2023-12-22 00:11:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:59,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:59,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:59,149 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 00:11:59,201 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 00:11:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:59,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:11:59,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:59,296 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 00:11:59,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:59,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:59,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291048053] [2023-12-22 00:11:59,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291048053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:59,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:59,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:11:59,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186061351] [2023-12-22 00:11:59,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:59,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:11:59,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:59,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:11:59,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:59,298 INFO L87 Difference]: Start difference. First operand 1483 states and 2515 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:11:59,355 INFO L93 Difference]: Finished difference Result 2791 states and 4445 transitions. [2023-12-22 00:11:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:11:59,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:11:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:11:59,361 INFO L225 Difference]: With dead ends: 2791 [2023-12-22 00:11:59,362 INFO L226 Difference]: Without dead ends: 2089 [2023-12-22 00:11:59,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:59,363 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 1481 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1624 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 00:11:59,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1624 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:11:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2023-12-22 00:11:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2087. [2023-12-22 00:11:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2085 states have (on average 1.6167865707434053) internal successors, (3371), 2086 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 3371 transitions. [2023-12-22 00:11:59,429 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 3371 transitions. Word has length 45 [2023-12-22 00:11:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:11:59,429 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 3371 transitions. [2023-12-22 00:11:59,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:11:59,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 3371 transitions. [2023-12-22 00:11:59,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-22 00:11:59,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:11:59,430 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] [2023-12-22 00:11:59,449 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 00:11:59,632 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 00:11:59,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:11:59,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:11:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1083059392, now seen corresponding path program 1 times [2023-12-22 00:11:59,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:11:59,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023189502] [2023-12-22 00:11:59,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:11:59,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:11:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:11:59,649 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 00:11:59,686 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 00:11:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:11:59,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:11:59,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:11:59,840 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 00:11:59,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:11:59,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:11:59,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023189502] [2023-12-22 00:11:59,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023189502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:11:59,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:11:59,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:11:59,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100993784] [2023-12-22 00:11:59,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:11:59,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:11:59,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:11:59,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:11:59,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:11:59,843 INFO L87 Difference]: Start difference. First operand 2087 states and 3371 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:12:58,083 INFO L93 Difference]: Finished difference Result 3591 states and 6244 transitions. [2023-12-22 00:12:58,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:12:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-22 00:12:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:12:58,094 INFO L225 Difference]: With dead ends: 3591 [2023-12-22 00:12:58,094 INFO L226 Difference]: Without dead ends: 2838 [2023-12-22 00:12:58,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:12:58,096 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 835 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:12:58,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 630 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 58.0s Time] [2023-12-22 00:12:58,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2023-12-22 00:12:58,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2838. [2023-12-22 00:12:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2836 states have (on average 1.508462623413258) internal successors, (4278), 2837 states have internal predecessors, (4278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:58,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 4278 transitions. [2023-12-22 00:12:58,158 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 4278 transitions. Word has length 47 [2023-12-22 00:12:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:12:58,159 INFO L495 AbstractCegarLoop]: Abstraction has 2838 states and 4278 transitions. [2023-12-22 00:12:58,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 4278 transitions. [2023-12-22 00:12:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-22 00:12:58,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:12:58,160 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] [2023-12-22 00:12:58,190 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 00:12:58,363 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 00:12:58,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:12:58,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:12:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash -612831839, now seen corresponding path program 1 times [2023-12-22 00:12:58,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:12:58,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942219988] [2023-12-22 00:12:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:12:58,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:12:58,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:12:58,376 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 00:12:58,377 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 00:12:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:12:58,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:12:58,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:12:58,510 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 00:12:58,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:12:58,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:12:58,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942219988] [2023-12-22 00:12:58,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942219988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:12:58,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:12:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:12:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902123492] [2023-12-22 00:12:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:12:58,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:12:58,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:12:58,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:12:58,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:12:58,512 INFO L87 Difference]: Start difference. First operand 2838 states and 4278 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:12:58,577 INFO L93 Difference]: Finished difference Result 4189 states and 6300 transitions. [2023-12-22 00:12:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:12:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-22 00:12:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:12:58,590 INFO L225 Difference]: With dead ends: 4189 [2023-12-22 00:12:58,590 INFO L226 Difference]: Without dead ends: 3442 [2023-12-22 00:12:58,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:12:58,593 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 1484 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1621 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 00:12:58,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:12:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2023-12-22 00:12:58,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3440. [2023-12-22 00:12:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 1.496218731820826) internal successors, (5144), 3439 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:58,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5144 transitions. [2023-12-22 00:12:58,675 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5144 transitions. Word has length 47 [2023-12-22 00:12:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:12:58,675 INFO L495 AbstractCegarLoop]: Abstraction has 3440 states and 5144 transitions. [2023-12-22 00:12:58,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5144 transitions. [2023-12-22 00:12:58,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:12:58,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:12:58,681 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] [2023-12-22 00:12:58,701 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 00:12:58,885 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 00:12:58,885 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:12:58,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:12:58,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1611721644, now seen corresponding path program 1 times [2023-12-22 00:12:58,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:12:58,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554571350] [2023-12-22 00:12:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:12:58,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:12:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:12:58,902 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 00:12:58,919 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 00:12:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:12:58,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:12:58,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:12:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:12:59,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:12:59,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:12:59,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554571350] [2023-12-22 00:12:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554571350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:12:59,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:12:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:12:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397279726] [2023-12-22 00:12:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:12:59,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:12:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:12:59,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:12:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:12:59,043 INFO L87 Difference]: Start difference. First operand 3440 states and 5144 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:59,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:12:59,113 INFO L93 Difference]: Finished difference Result 4805 states and 7156 transitions. [2023-12-22 00:12:59,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:12:59,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-22 00:12:59,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:12:59,122 INFO L225 Difference]: With dead ends: 4805 [2023-12-22 00:12:59,122 INFO L226 Difference]: Without dead ends: 2899 [2023-12-22 00:12:59,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:12:59,124 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 42 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3062 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 00:12:59,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3062 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:12:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2023-12-22 00:12:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2897. [2023-12-22 00:12:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2895 states have (on average 1.5063903281519861) internal successors, (4361), 2896 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 4361 transitions. [2023-12-22 00:12:59,172 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 4361 transitions. Word has length 61 [2023-12-22 00:12:59,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:12:59,172 INFO L495 AbstractCegarLoop]: Abstraction has 2897 states and 4361 transitions. [2023-12-22 00:12:59,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:12:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 4361 transitions. [2023-12-22 00:12:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 00:12:59,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:12:59,173 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] [2023-12-22 00:12:59,178 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 00:12:59,376 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 00:12:59,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:12:59,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:12:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash 213284817, now seen corresponding path program 1 times [2023-12-22 00:12:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:12:59,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799568288] [2023-12-22 00:12:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:12:59,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:12:59,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:12:59,378 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 00:12:59,396 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 00:12:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:12:59,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:12:59,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:00,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:00,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:00,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799568288] [2023-12-22 00:13:00,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799568288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:00,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:00,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:13:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805425127] [2023-12-22 00:13:00,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:00,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:13:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:00,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:13:00,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:13:00,516 INFO L87 Difference]: Start difference. First operand 2897 states and 4361 transitions. Second operand has 16 states, 16 states have (on average 7.125) internal successors, (114), 16 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 00:13:02,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:02,031 INFO L93 Difference]: Finished difference Result 6471 states and 9490 transitions. [2023-12-22 00:13:02,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:13:02,032 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.125) internal successors, (114), 16 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 63 [2023-12-22 00:13:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:02,057 INFO L225 Difference]: With dead ends: 6471 [2023-12-22 00:13:02,057 INFO L226 Difference]: Without dead ends: 5125 [2023-12-22 00:13:02,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 00:13:02,061 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 2146 mSDsluCounter, 10781 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 12316 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:02,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 12316 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:13:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5125 states. [2023-12-22 00:13:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5125 to 4241. [2023-12-22 00:13:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4241 states, 4239 states have (on average 1.487379098844067) internal successors, (6305), 4240 states have internal predecessors, (6305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 6305 transitions. [2023-12-22 00:13:02,152 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 6305 transitions. Word has length 63 [2023-12-22 00:13:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:02,152 INFO L495 AbstractCegarLoop]: Abstraction has 4241 states and 6305 transitions. [2023-12-22 00:13:02,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.125) internal successors, (114), 16 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 00:13:02,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 6305 transitions. [2023-12-22 00:13:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 00:13:02,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:02,153 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] [2023-12-22 00:13:02,158 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 00:13:02,358 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 00:13:02,358 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:02,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:02,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1120370875, now seen corresponding path program 1 times [2023-12-22 00:13:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:02,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195373513] [2023-12-22 00:13:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:02,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:02,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:02,361 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 00:13:02,369 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 00:13:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:02,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:02,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:02,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:02,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:02,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195373513] [2023-12-22 00:13:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195373513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:02,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999798036] [2023-12-22 00:13:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:02,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:02,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:02,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:02,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:02,489 INFO L87 Difference]: Start difference. First operand 4241 states and 6305 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:02,541 INFO L93 Difference]: Finished difference Result 5589 states and 8263 transitions. [2023-12-22 00:13:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:02,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-22 00:13:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:02,552 INFO L225 Difference]: With dead ends: 5589 [2023-12-22 00:13:02,553 INFO L226 Difference]: Without dead ends: 2899 [2023-12-22 00:13:02,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:02,571 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 36 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3047 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 00:13:02,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3047 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:02,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2023-12-22 00:13:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2897. [2023-12-22 00:13:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2895 states have (on average 1.4939550949913645) internal successors, (4325), 2896 states have internal predecessors, (4325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 4325 transitions. [2023-12-22 00:13:02,627 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 4325 transitions. Word has length 65 [2023-12-22 00:13:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:02,627 INFO L495 AbstractCegarLoop]: Abstraction has 2897 states and 4325 transitions. [2023-12-22 00:13:02,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 4325 transitions. [2023-12-22 00:13:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 00:13:02,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:02,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:02,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:02,831 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 00:13:02,831 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:02,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:02,832 INFO L85 PathProgramCache]: Analyzing trace with hash -76449092, now seen corresponding path program 1 times [2023-12-22 00:13:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:02,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751686538] [2023-12-22 00:13:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:02,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:02,833 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 00:13:02,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 00:13:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:02,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:13:02,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:04,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:04,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751686538] [2023-12-22 00:13:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751686538] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:04,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:04,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:13:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994913902] [2023-12-22 00:13:04,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:04,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:13:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:13:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:13:04,497 INFO L87 Difference]: Start difference. First operand 2897 states and 4325 transitions. Second operand has 16 states, 16 states have (on average 7.625) internal successors, (122), 16 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:05,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:05,461 INFO L93 Difference]: Finished difference Result 4303 states and 6322 transitions. [2023-12-22 00:13:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 00:13:05,461 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.625) internal successors, (122), 16 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 00:13:05,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:05,467 INFO L225 Difference]: With dead ends: 4303 [2023-12-22 00:13:05,467 INFO L226 Difference]: Without dead ends: 2957 [2023-12-22 00:13:05,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 00:13:05,470 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 4540 mSDsluCounter, 8932 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4540 SdHoareTripleChecker+Valid, 10419 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:05,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4540 Valid, 10419 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 00:13:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2023-12-22 00:13:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2907. [2023-12-22 00:13:05,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2905 states have (on average 1.4929432013769364) internal successors, (4337), 2906 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4337 transitions. [2023-12-22 00:13:05,526 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4337 transitions. Word has length 66 [2023-12-22 00:13:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:05,526 INFO L495 AbstractCegarLoop]: Abstraction has 2907 states and 4337 transitions. [2023-12-22 00:13:05,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.625) internal successors, (122), 16 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4337 transitions. [2023-12-22 00:13:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-22 00:13:05,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:05,528 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] [2023-12-22 00:13:05,547 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 00:13:05,731 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 00:13:05,732 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:05,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash 830777020, now seen corresponding path program 1 times [2023-12-22 00:13:05,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:05,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048243577] [2023-12-22 00:13:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:05,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:05,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:05,735 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 00:13:05,739 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 00:13:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:05,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:05,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:05,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:05,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:05,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048243577] [2023-12-22 00:13:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048243577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:05,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486019883] [2023-12-22 00:13:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:05,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:05,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:05,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:05,920 INFO L87 Difference]: Start difference. First operand 2907 states and 4337 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:05,972 INFO L93 Difference]: Finished difference Result 3583 states and 5305 transitions. [2023-12-22 00:13:05,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:05,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-12-22 00:13:05,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:05,994 INFO L225 Difference]: With dead ends: 3583 [2023-12-22 00:13:05,994 INFO L226 Difference]: Without dead ends: 2237 [2023-12-22 00:13:06,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:06,006 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 32 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3032 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 00:13:06,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3032 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:06,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2023-12-22 00:13:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2235. [2023-12-22 00:13:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 2233 states have (on average 1.5042543663233319) internal successors, (3359), 2234 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:06,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3359 transitions. [2023-12-22 00:13:06,077 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3359 transitions. Word has length 68 [2023-12-22 00:13:06,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:06,078 INFO L495 AbstractCegarLoop]: Abstraction has 2235 states and 3359 transitions. [2023-12-22 00:13:06,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:06,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3359 transitions. [2023-12-22 00:13:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-22 00:13:06,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:06,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:06,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:06,283 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 00:13:06,284 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:06,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:06,284 INFO L85 PathProgramCache]: Analyzing trace with hash -346062555, now seen corresponding path program 1 times [2023-12-22 00:13:06,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730001258] [2023-12-22 00:13:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:06,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:06,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:06,301 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 00:13:06,316 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 (17)] Waiting until timeout for monitored process [2023-12-22 00:13:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:06,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:13:06,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:07,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:07,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730001258] [2023-12-22 00:13:07,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730001258] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:07,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:07,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:13:07,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167781522] [2023-12-22 00:13:07,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:07,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:13:07,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:07,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:13:07,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:13:07,859 INFO L87 Difference]: Start difference. First operand 2235 states and 3359 transitions. Second operand has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:09,245 INFO L93 Difference]: Finished difference Result 4031 states and 5859 transitions. [2023-12-22 00:13:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:13:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 0 states have call successors, (0), 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 69 [2023-12-22 00:13:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:09,252 INFO L225 Difference]: With dead ends: 4031 [2023-12-22 00:13:09,252 INFO L226 Difference]: Without dead ends: 3357 [2023-12-22 00:13:09,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:13:09,255 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 4837 mSDsluCounter, 7614 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4837 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:09,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4837 Valid, 9157 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:13:09,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2023-12-22 00:13:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 2979. [2023-12-22 00:13:09,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2977 states have (on average 1.4689284514612027) internal successors, (4373), 2978 states have internal predecessors, (4373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:09,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4373 transitions. [2023-12-22 00:13:09,329 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4373 transitions. Word has length 69 [2023-12-22 00:13:09,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:09,329 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4373 transitions. [2023-12-22 00:13:09,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:09,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4373 transitions. [2023-12-22 00:13:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-22 00:13:09,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:09,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:09,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-22 00:13:09,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:09,534 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:09,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2137174735, now seen corresponding path program 1 times [2023-12-22 00:13:09,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:09,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800638609] [2023-12-22 00:13:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:09,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:09,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:09,536 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:09,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 00:13:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:09,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:13:09,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:09,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:13:09,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:09,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800638609] [2023-12-22 00:13:09,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800638609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:13:09,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:13:09,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:13:09,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967508567] [2023-12-22 00:13:09,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:13:09,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:13:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:09,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:13:09,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:09,715 INFO L87 Difference]: Start difference. First operand 2979 states and 4373 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:09,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:09,756 INFO L93 Difference]: Finished difference Result 3691 states and 5353 transitions. [2023-12-22 00:13:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:13:09,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-12-22 00:13:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:09,760 INFO L225 Difference]: With dead ends: 3691 [2023-12-22 00:13:09,760 INFO L226 Difference]: Without dead ends: 2273 [2023-12-22 00:13:09,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:13:09,761 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 28 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:09,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3017 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:13:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2023-12-22 00:13:09,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2271. [2023-12-22 00:13:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 2269 states have (on average 1.48567650947554) internal successors, (3371), 2270 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 3371 transitions. [2023-12-22 00:13:09,795 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 3371 transitions. Word has length 71 [2023-12-22 00:13:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:09,795 INFO L495 AbstractCegarLoop]: Abstraction has 2271 states and 3371 transitions. [2023-12-22 00:13:09,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 3371 transitions. [2023-12-22 00:13:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-22 00:13:09,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:09,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:09,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-22 00:13:09,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:10,000 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:10,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:10,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1269520304, now seen corresponding path program 1 times [2023-12-22 00:13:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:10,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034180063] [2023-12-22 00:13:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:10,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:10,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:10,002 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:10,011 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 (19)] Waiting until timeout for monitored process [2023-12-22 00:13:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:10,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:13:10,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:10,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:11,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:11,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034180063] [2023-12-22 00:13:11,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034180063] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:11,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:11,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:13:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328840688] [2023-12-22 00:13:11,256 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:11,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:13:11,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:11,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:13:11,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:13:11,257 INFO L87 Difference]: Start difference. First operand 2271 states and 3371 transitions. Second operand has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:12,347 INFO L93 Difference]: Finished difference Result 3631 states and 5191 transitions. [2023-12-22 00:13:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:13:12,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 0 states have call successors, (0), 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 72 [2023-12-22 00:13:12,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:12,370 INFO L225 Difference]: With dead ends: 3631 [2023-12-22 00:13:12,371 INFO L226 Difference]: Without dead ends: 2921 [2023-12-22 00:13:12,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:13:12,390 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1936 mSDsluCounter, 12124 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 13649 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:12,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 13649 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:13:12,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2023-12-22 00:13:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2791. [2023-12-22 00:13:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2789 states have (on average 1.4510577267837934) internal successors, (4047), 2790 states have internal predecessors, (4047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4047 transitions. [2023-12-22 00:13:12,505 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4047 transitions. Word has length 72 [2023-12-22 00:13:12,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:12,505 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 4047 transitions. [2023-12-22 00:13:12,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.625) internal successors, (138), 16 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4047 transitions. [2023-12-22 00:13:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-22 00:13:12,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:12,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:12,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:12,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:12,722 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:12,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1149169944, now seen corresponding path program 1 times [2023-12-22 00:13:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:12,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255907980] [2023-12-22 00:13:12,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:12,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:12,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:12,724 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:12,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 00:13:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:12,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:13:12,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:12,884 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:13:12,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:13:12,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255907980] [2023-12-22 00:13:12,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255907980] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:12,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:12,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:13:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600368281] [2023-12-22 00:13:12,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:12,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:13:12,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:12,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:13:12,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:13:12,985 INFO L87 Difference]: Start difference. First operand 2791 states and 4047 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:13,146 INFO L93 Difference]: Finished difference Result 6345 states and 8694 transitions. [2023-12-22 00:13:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:13:13,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 00:13:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:13,152 INFO L225 Difference]: With dead ends: 6345 [2023-12-22 00:13:13,152 INFO L226 Difference]: Without dead ends: 5115 [2023-12-22 00:13:13,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 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 00:13:13,154 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 3006 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:13,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3006 Valid, 3192 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:13:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2023-12-22 00:13:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 5091. [2023-12-22 00:13:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 5089 states have (on average 1.3371978777755944) internal successors, (6805), 5090 states have internal predecessors, (6805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:13,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 6805 transitions. [2023-12-22 00:13:13,289 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 6805 transitions. Word has length 74 [2023-12-22 00:13:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:13,289 INFO L495 AbstractCegarLoop]: Abstraction has 5091 states and 6805 transitions. [2023-12-22 00:13:13,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 6805 transitions. [2023-12-22 00:13:13,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-22 00:13:13,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:13,290 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:13,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:13,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:13,494 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:13,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:13,494 INFO L85 PathProgramCache]: Analyzing trace with hash -111833420, now seen corresponding path program 1 times [2023-12-22 00:13:13,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:13,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685309287] [2023-12-22 00:13:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:13,496 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:13,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 00:13:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:13,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:13:13,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 38 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:14,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 38 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:15,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685309287] [2023-12-22 00:13:15,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685309287] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:15,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:15,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:13:15,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75811935] [2023-12-22 00:13:15,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:15,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:13:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:13:15,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:13:15,441 INFO L87 Difference]: Start difference. First operand 5091 states and 6805 transitions. Second operand has 26 states, 26 states have (on average 8.076923076923077) internal successors, (210), 25 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:17,368 INFO L93 Difference]: Finished difference Result 7489 states and 9826 transitions. [2023-12-22 00:13:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:13:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.076923076923077) internal successors, (210), 25 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-22 00:13:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:17,377 INFO L225 Difference]: With dead ends: 7489 [2023-12-22 00:13:17,377 INFO L226 Difference]: Without dead ends: 5153 [2023-12-22 00:13:17,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:13:17,382 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 15001 mSDsluCounter, 7873 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15001 SdHoareTripleChecker+Valid, 9386 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:17,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15001 Valid, 9386 Invalid, 838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:13:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2023-12-22 00:13:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5091. [2023-12-22 00:13:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 5089 states have (on average 1.3261937512281392) internal successors, (6749), 5090 states have internal predecessors, (6749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 6749 transitions. [2023-12-22 00:13:17,613 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 6749 transitions. Word has length 115 [2023-12-22 00:13:17,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:17,614 INFO L495 AbstractCegarLoop]: Abstraction has 5091 states and 6749 transitions. [2023-12-22 00:13:17,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.076923076923077) internal successors, (210), 25 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 6749 transitions. [2023-12-22 00:13:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-22 00:13:17,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:17,617 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:17,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-22 00:13:17,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:17,821 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:17,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:17,822 INFO L85 PathProgramCache]: Analyzing trace with hash 424075347, now seen corresponding path program 1 times [2023-12-22 00:13:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:17,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51489644] [2023-12-22 00:13:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:17,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:17,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:17,824 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:17,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 00:13:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:17,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:13:17,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 30 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:19,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:20,479 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 30 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:20,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:20,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51489644] [2023-12-22 00:13:20,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51489644] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:20,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:20,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:13:20,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110783420] [2023-12-22 00:13:20,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:20,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:13:20,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:20,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:13:20,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:13:20,482 INFO L87 Difference]: Start difference. First operand 5091 states and 6749 transitions. Second operand has 26 states, 26 states have (on average 8.307692307692308) internal successors, (216), 25 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:23,254 INFO L93 Difference]: Finished difference Result 8079 states and 10456 transitions. [2023-12-22 00:13:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 00:13:23,255 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.307692307692308) internal successors, (216), 25 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-22 00:13:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:23,262 INFO L225 Difference]: With dead ends: 8079 [2023-12-22 00:13:23,263 INFO L226 Difference]: Without dead ends: 5093 [2023-12-22 00:13:23,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:13:23,268 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 16437 mSDsluCounter, 6210 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16437 SdHoareTripleChecker+Valid, 7723 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:23,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16437 Valid, 7723 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 00:13:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2023-12-22 00:13:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 5091. [2023-12-22 00:13:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 5089 states have (on average 1.3159756337197879) internal successors, (6697), 5090 states have internal predecessors, (6697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 6697 transitions. [2023-12-22 00:13:23,454 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 6697 transitions. Word has length 116 [2023-12-22 00:13:23,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:23,454 INFO L495 AbstractCegarLoop]: Abstraction has 5091 states and 6697 transitions. [2023-12-22 00:13:23,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.307692307692308) internal successors, (216), 25 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:23,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 6697 transitions. [2023-12-22 00:13:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-22 00:13:23,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:23,457 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:23,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:23,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:23,662 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:23,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2041646628, now seen corresponding path program 1 times [2023-12-22 00:13:23,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:23,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281556460] [2023-12-22 00:13:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:23,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:23,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:23,664 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:23,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 00:13:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:23,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:13:23,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 22 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:25,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 22 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:25,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:25,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281556460] [2023-12-22 00:13:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281556460] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:25,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:25,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:13:25,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717480217] [2023-12-22 00:13:25,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:25,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:13:25,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:25,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:13:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:13:25,604 INFO L87 Difference]: Start difference. First operand 5091 states and 6697 transitions. Second operand has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 25 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 00:13:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:13:31,321 INFO L93 Difference]: Finished difference Result 16709 states and 21132 transitions. [2023-12-22 00:13:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 00:13:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 25 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 117 [2023-12-22 00:13:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:13:31,342 INFO L225 Difference]: With dead ends: 16709 [2023-12-22 00:13:31,342 INFO L226 Difference]: Without dead ends: 15275 [2023-12-22 00:13:31,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 00:13:31,351 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 20534 mSDsluCounter, 6466 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20534 SdHoareTripleChecker+Valid, 7979 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:13:31,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20534 Valid, 7979 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 00:13:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15275 states. [2023-12-22 00:13:31,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15275 to 5091. [2023-12-22 00:13:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 5089 states have (on average 1.3104735704460602) internal successors, (6669), 5090 states have internal predecessors, (6669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:13:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 6669 transitions. [2023-12-22 00:13:31,663 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 6669 transitions. Word has length 117 [2023-12-22 00:13:31,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:13:31,663 INFO L495 AbstractCegarLoop]: Abstraction has 5091 states and 6669 transitions. [2023-12-22 00:13:31,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 25 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 00:13:31,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 6669 transitions. [2023-12-22 00:13:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 00:13:31,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:13:31,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:13:31,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 00:13:31,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:31,870 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:13:31,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:13:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash -827571467, now seen corresponding path program 1 times [2023-12-22 00:13:31,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:13:31,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168731933] [2023-12-22 00:13:31,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:13:31,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:13:31,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:13:31,875 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:13:31,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 00:13:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:13:31,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:13:31,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:13:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:32,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:13:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:13:33,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:13:33,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168731933] [2023-12-22 00:13:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168731933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:13:33,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:13:33,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:13:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063462745] [2023-12-22 00:13:33,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:13:33,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:13:33,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:13:33,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:13:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:13:33,648 INFO L87 Difference]: Start difference. First operand 5091 states and 6669 transitions. Second operand has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:48,966 INFO L93 Difference]: Finished difference Result 11174 states and 16644 transitions. [2023-12-22 00:15:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 00:15:48,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 states have internal predecessors, (224), 0 states have call successors, (0), 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 00:15:48,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:48,975 INFO L225 Difference]: With dead ends: 11174 [2023-12-22 00:15:48,976 INFO L226 Difference]: Without dead ends: 9670 [2023-12-22 00:15:48,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 00:15:48,979 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 6001 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7862 mSolverCounterSat, 3038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6001 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 10900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3038 IncrementalHoareTripleChecker+Valid, 7862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:48,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6001 Valid, 282 Invalid, 10900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3038 Valid, 7862 Invalid, 0 Unknown, 0 Unchecked, 134.4s Time] [2023-12-22 00:15:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9670 states. [2023-12-22 00:15:49,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9670 to 8095. [2023-12-22 00:15:49,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8095 states, 8093 states have (on average 1.2990238477696776) internal successors, (10513), 8094 states have internal predecessors, (10513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8095 states to 8095 states and 10513 transitions. [2023-12-22 00:15:49,312 INFO L78 Accepts]: Start accepts. Automaton has 8095 states and 10513 transitions. Word has length 118 [2023-12-22 00:15:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:49,312 INFO L495 AbstractCegarLoop]: Abstraction has 8095 states and 10513 transitions. [2023-12-22 00:15:49,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 6 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:49,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8095 states and 10513 transitions. [2023-12-22 00:15:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 00:15:49,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:49,314 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:49,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:49,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:49,518 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:49,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1278071293, now seen corresponding path program 1 times [2023-12-22 00:15:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017954032] [2023-12-22 00:15:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:49,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:49,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:49,520 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:49,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 00:15:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:49,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:49,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:15:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 13 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:51,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:15:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 13 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:15:51,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:15:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017954032] [2023-12-22 00:15:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017954032] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:15:51,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:15:51,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:15:51,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261048084] [2023-12-22 00:15:51,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:15:51,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:15:51,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:15:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:15:51,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:15:51,948 INFO L87 Difference]: Start difference. First operand 8095 states and 10513 transitions. Second operand has 26 states, 26 states have (on average 8.846153846153847) internal successors, (230), 26 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 00:15:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:15:58,051 INFO L93 Difference]: Finished difference Result 10595 states and 13501 transitions. [2023-12-22 00:15:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:15:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.846153846153847) internal successors, (230), 26 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 00:15:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:15:58,061 INFO L225 Difference]: With dead ends: 10595 [2023-12-22 00:15:58,061 INFO L226 Difference]: Without dead ends: 8941 [2023-12-22 00:15:58,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:15:58,065 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 6604 mSDsluCounter, 24837 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6604 SdHoareTripleChecker+Valid, 26435 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:15:58,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6604 Valid, 26435 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 00:15:58,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8941 states. [2023-12-22 00:15:58,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8941 to 6765. [2023-12-22 00:15:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6765 states, 6763 states have (on average 1.3155404406328552) internal successors, (8897), 6764 states have internal predecessors, (8897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:15:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6765 states to 6765 states and 8897 transitions. [2023-12-22 00:15:58,242 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 8897 transitions. Word has length 118 [2023-12-22 00:15:58,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:15:58,243 INFO L495 AbstractCegarLoop]: Abstraction has 6765 states and 8897 transitions. [2023-12-22 00:15:58,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.846153846153847) internal successors, (230), 26 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 00:15:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 8897 transitions. [2023-12-22 00:15:58,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 00:15:58,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:15:58,244 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:15:58,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 00:15:58,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:58,448 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:15:58,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:15:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash -923365721, now seen corresponding path program 1 times [2023-12-22 00:15:58,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:15:58,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426722851] [2023-12-22 00:15:58,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:15:58,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:15:58,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:15:58,454 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:15:58,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 00:15:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:15:58,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:15:58,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:00,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:16:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:00,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:00,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426722851] [2023-12-22 00:16:00,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426722851] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:16:00,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:16:00,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:16:00,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546862798] [2023-12-22 00:16:00,561 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:16:00,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:16:00,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:00,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:16:00,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:16:00,562 INFO L87 Difference]: Start difference. First operand 6765 states and 8897 transitions. Second operand has 26 states, 26 states have (on average 8.653846153846153) internal successors, (225), 26 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:03,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:03,103 INFO L93 Difference]: Finished difference Result 9003 states and 11639 transitions. [2023-12-22 00:16:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 00:16:03,104 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.653846153846153) internal successors, (225), 26 states have internal predecessors, (225), 0 states have call successors, (0), 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 00:16:03,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:03,113 INFO L225 Difference]: With dead ends: 9003 [2023-12-22 00:16:03,113 INFO L226 Difference]: Without dead ends: 8501 [2023-12-22 00:16:03,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-22 00:16:03,118 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 4716 mSDsluCounter, 19829 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 21373 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:03,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4716 Valid, 21373 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 00:16:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8501 states. [2023-12-22 00:16:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8501 to 8120. [2023-12-22 00:16:03,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8120 states, 8118 states have (on average 1.296871150529687) internal successors, (10528), 8119 states have internal predecessors, (10528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8120 states to 8120 states and 10528 transitions. [2023-12-22 00:16:03,410 INFO L78 Accepts]: Start accepts. Automaton has 8120 states and 10528 transitions. Word has length 118 [2023-12-22 00:16:03,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:03,410 INFO L495 AbstractCegarLoop]: Abstraction has 8120 states and 10528 transitions. [2023-12-22 00:16:03,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.653846153846153) internal successors, (225), 26 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 8120 states and 10528 transitions. [2023-12-22 00:16:03,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 00:16:03,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:03,412 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:03,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:03,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:03,616 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:03,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash 862516355, now seen corresponding path program 1 times [2023-12-22 00:16:03,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:03,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125793417] [2023-12-22 00:16:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:16:03,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:03,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:03,617 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:03,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 00:16:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:16:03,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:16:03,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 31 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:04,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:16:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 31 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:05,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:05,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125793417] [2023-12-22 00:16:05,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125793417] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:16:05,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:16:05,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:16:05,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090608810] [2023-12-22 00:16:05,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:16:05,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:16:05,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:05,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:16:05,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:16:05,390 INFO L87 Difference]: Start difference. First operand 8120 states and 10528 transitions. Second operand has 26 states, 26 states have (on average 8.461538461538462) internal successors, (220), 26 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:11,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:11,808 INFO L93 Difference]: Finished difference Result 11046 states and 14085 transitions. [2023-12-22 00:16:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:16:11,809 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.461538461538462) internal successors, (220), 26 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2023-12-22 00:16:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:11,818 INFO L225 Difference]: With dead ends: 11046 [2023-12-22 00:16:11,818 INFO L226 Difference]: Without dead ends: 9636 [2023-12-22 00:16:11,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:16:11,821 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 5037 mSDsluCounter, 20528 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 22147 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:11,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5037 Valid, 22147 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 00:16:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9636 states. [2023-12-22 00:16:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9636 to 8900. [2023-12-22 00:16:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8900 states, 8898 states have (on average 1.2839964036862217) internal successors, (11425), 8899 states have internal predecessors, (11425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8900 states to 8900 states and 11425 transitions. [2023-12-22 00:16:12,139 INFO L78 Accepts]: Start accepts. Automaton has 8900 states and 11425 transitions. Word has length 118 [2023-12-22 00:16:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:12,139 INFO L495 AbstractCegarLoop]: Abstraction has 8900 states and 11425 transitions. [2023-12-22 00:16:12,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.461538461538462) internal successors, (220), 26 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 8900 states and 11425 transitions. [2023-12-22 00:16:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 00:16:12,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:12,140 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:12,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:12,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:12,344 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:12,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:12,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1360517159, now seen corresponding path program 1 times [2023-12-22 00:16:12,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:12,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181602586] [2023-12-22 00:16:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:16:12,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:12,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:12,345 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:12,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 00:16:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:16:12,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:16:12,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:13,784 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 40 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:13,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:16:14,518 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 40 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:14,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:14,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181602586] [2023-12-22 00:16:14,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181602586] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:16:14,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:16:14,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:16:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160906907] [2023-12-22 00:16:14,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:16:14,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:16:14,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:16:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:16:14,520 INFO L87 Difference]: Start difference. First operand 8900 states and 11425 transitions. Second operand has 26 states, 26 states have (on average 8.26923076923077) internal successors, (215), 26 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:21,295 INFO L93 Difference]: Finished difference Result 16876 states and 20836 transitions. [2023-12-22 00:16:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:16:21,295 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.26923076923077) internal successors, (215), 26 states have internal predecessors, (215), 0 states have call successors, (0), 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 00:16:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:21,310 INFO L225 Difference]: With dead ends: 16876 [2023-12-22 00:16:21,310 INFO L226 Difference]: Without dead ends: 15413 [2023-12-22 00:16:21,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:16:21,315 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 2301 mSDsluCounter, 19235 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 20871 SdHoareTripleChecker+Invalid, 2137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:21,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 20871 Invalid, 2137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 00:16:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15413 states. [2023-12-22 00:16:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15413 to 12515. [2023-12-22 00:16:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12515 states, 12513 states have (on average 1.2502996883241428) internal successors, (15645), 12514 states have internal predecessors, (15645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12515 states to 12515 states and 15645 transitions. [2023-12-22 00:16:21,937 INFO L78 Accepts]: Start accepts. Automaton has 12515 states and 15645 transitions. Word has length 118 [2023-12-22 00:16:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:21,937 INFO L495 AbstractCegarLoop]: Abstraction has 12515 states and 15645 transitions. [2023-12-22 00:16:21,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.26923076923077) internal successors, (215), 26 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 12515 states and 15645 transitions. [2023-12-22 00:16:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 00:16:21,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:21,943 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:21,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:22,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:22,147 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:22,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:22,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1160269194, now seen corresponding path program 2 times [2023-12-22 00:16:22,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:22,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570216455] [2023-12-22 00:16:22,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:22,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:22,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:22,148 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:22,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 00:16:22,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:22,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:22,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:22,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-12-22 00:16:23,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:23,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:23,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570216455] [2023-12-22 00:16:23,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570216455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:23,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:23,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3730746] [2023-12-22 00:16:23,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:23,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:23,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:23,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:23,438 INFO L87 Difference]: Start difference. First operand 12515 states and 15645 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:24,322 INFO L93 Difference]: Finished difference Result 15473 states and 19335 transitions. [2023-12-22 00:16:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:24,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 164 [2023-12-22 00:16:24,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:24,340 INFO L225 Difference]: With dead ends: 15473 [2023-12-22 00:16:24,341 INFO L226 Difference]: Without dead ends: 13647 [2023-12-22 00:16:24,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:24,344 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 1614 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:24,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 3229 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13647 states. [2023-12-22 00:16:25,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13647 to 12483. [2023-12-22 00:16:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12483 states, 12481 states have (on average 1.244691931736239) internal successors, (15535), 12482 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12483 states to 12483 states and 15535 transitions. [2023-12-22 00:16:25,160 INFO L78 Accepts]: Start accepts. Automaton has 12483 states and 15535 transitions. Word has length 164 [2023-12-22 00:16:25,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:25,161 INFO L495 AbstractCegarLoop]: Abstraction has 12483 states and 15535 transitions. [2023-12-22 00:16:25,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:25,161 INFO L276 IsEmpty]: Start isEmpty. Operand 12483 states and 15535 transitions. [2023-12-22 00:16:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 00:16:25,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:25,185 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:25,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:25,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:25,392 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:25,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:25,392 INFO L85 PathProgramCache]: Analyzing trace with hash -805563622, now seen corresponding path program 2 times [2023-12-22 00:16:25,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:25,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960331022] [2023-12-22 00:16:25,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:25,393 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:25,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:25,394 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:25,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 00:16:25,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:25,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:25,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:25,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-22 00:16:26,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:26,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960331022] [2023-12-22 00:16:26,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960331022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:26,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:26,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:26,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566673450] [2023-12-22 00:16:26,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:26,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:26,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:26,588 INFO L87 Difference]: Start difference. First operand 12483 states and 15535 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:27,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:27,273 INFO L93 Difference]: Finished difference Result 14911 states and 18601 transitions. [2023-12-22 00:16:27,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:27,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 164 [2023-12-22 00:16:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:27,288 INFO L225 Difference]: With dead ends: 14911 [2023-12-22 00:16:27,289 INFO L226 Difference]: Without dead ends: 13903 [2023-12-22 00:16:27,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:27,293 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 3046 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:27,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 3227 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13903 states. [2023-12-22 00:16:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13903 to 13122. [2023-12-22 00:16:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13122 states, 13120 states have (on average 1.2383384146341463) internal successors, (16247), 13121 states have internal predecessors, (16247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 16247 transitions. [2023-12-22 00:16:28,029 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 16247 transitions. Word has length 164 [2023-12-22 00:16:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:28,029 INFO L495 AbstractCegarLoop]: Abstraction has 13122 states and 16247 transitions. [2023-12-22 00:16:28,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 16247 transitions. [2023-12-22 00:16:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 00:16:28,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:28,034 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:28,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:28,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:28,239 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:28,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:28,239 INFO L85 PathProgramCache]: Analyzing trace with hash 980318454, now seen corresponding path program 2 times [2023-12-22 00:16:28,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:28,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639097370] [2023-12-22 00:16:28,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:28,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:28,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:28,241 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:28,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 00:16:28,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:28,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:28,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:28,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-12-22 00:16:29,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:29,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:29,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639097370] [2023-12-22 00:16:29,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639097370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:29,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:29,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:29,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365387462] [2023-12-22 00:16:29,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:29,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:29,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:29,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:29,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:29,323 INFO L87 Difference]: Start difference. First operand 13122 states and 16247 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:30,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:30,079 INFO L93 Difference]: Finished difference Result 15643 states and 19426 transitions. [2023-12-22 00:16:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:30,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 164 [2023-12-22 00:16:30,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:30,129 INFO L225 Difference]: With dead ends: 15643 [2023-12-22 00:16:30,129 INFO L226 Difference]: Without dead ends: 14486 [2023-12-22 00:16:30,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:30,133 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 4492 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4492 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:30,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4492 Valid, 3223 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14486 states. [2023-12-22 00:16:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14486 to 13954. [2023-12-22 00:16:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13954 states, 13952 states have (on average 1.232009747706422) internal successors, (17189), 13953 states have internal predecessors, (17189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13954 states to 13954 states and 17189 transitions. [2023-12-22 00:16:30,957 INFO L78 Accepts]: Start accepts. Automaton has 13954 states and 17189 transitions. Word has length 164 [2023-12-22 00:16:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:30,958 INFO L495 AbstractCegarLoop]: Abstraction has 13954 states and 17189 transitions. [2023-12-22 00:16:30,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:30,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13954 states and 17189 transitions. [2023-12-22 00:16:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 00:16:30,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:30,979 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:30,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-22 00:16:31,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:31,182 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:31,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1478319258, now seen corresponding path program 2 times [2023-12-22 00:16:31,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:31,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725963178] [2023-12-22 00:16:31,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:16:31,183 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 00:16:31,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:31,184 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:31,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 00:16:31,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:16:31,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:16:31,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:16:31,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-22 00:16:32,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:16:32,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:32,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725963178] [2023-12-22 00:16:32,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725963178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:16:32,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:16:32,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:16:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150087687] [2023-12-22 00:16:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:16:32,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:16:32,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:16:32,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:32,162 INFO L87 Difference]: Start difference. First operand 13954 states and 17189 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:32,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:32,952 INFO L93 Difference]: Finished difference Result 16189 states and 20007 transitions. [2023-12-22 00:16:32,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:16:32,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 164 [2023-12-22 00:16:32,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:32,969 INFO L225 Difference]: With dead ends: 16189 [2023-12-22 00:16:32,969 INFO L226 Difference]: Without dead ends: 15279 [2023-12-22 00:16:32,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:16:32,974 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 1604 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:32,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 3265 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:16:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15279 states. [2023-12-22 00:16:33,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15279 to 14725. [2023-12-22 00:16:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14725 states, 14723 states have (on average 1.2278747537865924) internal successors, (18078), 14724 states have internal predecessors, (18078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14725 states to 14725 states and 18078 transitions. [2023-12-22 00:16:33,778 INFO L78 Accepts]: Start accepts. Automaton has 14725 states and 18078 transitions. Word has length 164 [2023-12-22 00:16:33,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:33,779 INFO L495 AbstractCegarLoop]: Abstraction has 14725 states and 18078 transitions. [2023-12-22 00:16:33,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 14725 states and 18078 transitions. [2023-12-22 00:16:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-22 00:16:33,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:33,783 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:33,788 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 00:16:33,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:33,987 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:33,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2081293511, now seen corresponding path program 1 times [2023-12-22 00:16:33,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:33,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761441022] [2023-12-22 00:16:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:16:33,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:33,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:33,989 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:33,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 00:16:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:16:34,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:16:34,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:36,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:16:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:37,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:37,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761441022] [2023-12-22 00:16:37,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761441022] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:16:37,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:16:37,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:16:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645015752] [2023-12-22 00:16:37,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:16:37,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:16:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:16:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:16:37,293 INFO L87 Difference]: Start difference. First operand 14725 states and 18078 transitions. Second operand has 36 states, 36 states have (on average 8.833333333333334) internal successors, (318), 36 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:16:54,553 INFO L93 Difference]: Finished difference Result 18837 states and 22932 transitions. [2023-12-22 00:16:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 00:16:54,553 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.833333333333334) internal successors, (318), 36 states have internal predecessors, (318), 0 states have call successors, (0), 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 165 [2023-12-22 00:16:54,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:16:54,572 INFO L225 Difference]: With dead ends: 18837 [2023-12-22 00:16:54,572 INFO L226 Difference]: Without dead ends: 17086 [2023-12-22 00:16:54,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4423 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 00:16:54,582 INFO L413 NwaCegarLoop]: 1697 mSDtfsCounter, 5415 mSDsluCounter, 34357 mSDsCounter, 0 mSdLazyCounter, 5138 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 36054 SdHoareTripleChecker+Invalid, 5166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 5138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:16:54,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5415 Valid, 36054 Invalid, 5166 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 5138 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-22 00:16:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17086 states. [2023-12-22 00:16:55,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17086 to 12162. [2023-12-22 00:16:55,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12162 states, 12160 states have (on average 1.241529605263158) internal successors, (15097), 12161 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12162 states to 12162 states and 15097 transitions. [2023-12-22 00:16:55,249 INFO L78 Accepts]: Start accepts. Automaton has 12162 states and 15097 transitions. Word has length 165 [2023-12-22 00:16:55,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:16:55,249 INFO L495 AbstractCegarLoop]: Abstraction has 12162 states and 15097 transitions. [2023-12-22 00:16:55,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.833333333333334) internal successors, (318), 36 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:16:55,249 INFO L276 IsEmpty]: Start isEmpty. Operand 12162 states and 15097 transitions. [2023-12-22 00:16:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-22 00:16:55,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:16:55,252 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:16:55,256 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 00:16:55,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:55,456 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:16:55,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:16:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1609063019, now seen corresponding path program 1 times [2023-12-22 00:16:55,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:16:55,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140419257] [2023-12-22 00:16:55,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:16:55,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:16:55,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:16:55,458 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:16:55,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 00:16:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:16:55,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:16:55,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:16:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 54 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:57,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:16:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 54 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:16:58,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:16:58,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140419257] [2023-12-22 00:16:58,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140419257] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:16:58,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:16:58,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:16:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634860804] [2023-12-22 00:16:58,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:16:58,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:16:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:16:58,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:16:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:16:58,421 INFO L87 Difference]: Start difference. First operand 12162 states and 15097 transitions. Second operand has 36 states, 36 states have (on average 8.694444444444445) internal successors, (313), 36 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:19,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:17:19,544 INFO L93 Difference]: Finished difference Result 15977 states and 19557 transitions. [2023-12-22 00:17:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 00:17:19,545 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.694444444444445) internal successors, (313), 36 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2023-12-22 00:17:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:17:19,560 INFO L225 Difference]: With dead ends: 15977 [2023-12-22 00:17:19,560 INFO L226 Difference]: Without dead ends: 13906 [2023-12-22 00:17:19,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5598 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 00:17:19,565 INFO L413 NwaCegarLoop]: 1725 mSDtfsCounter, 2259 mSDsluCounter, 36655 mSDsCounter, 0 mSdLazyCounter, 6207 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 38380 SdHoareTripleChecker+Invalid, 6237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:17:19,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 38380 Invalid, 6237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 6207 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-22 00:17:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13906 states. [2023-12-22 00:17:20,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13906 to 12307. [2023-12-22 00:17:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12307 states, 12305 states have (on average 1.2384396586753352) internal successors, (15239), 12306 states have internal predecessors, (15239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12307 states to 12307 states and 15239 transitions. [2023-12-22 00:17:20,239 INFO L78 Accepts]: Start accepts. Automaton has 12307 states and 15239 transitions. Word has length 165 [2023-12-22 00:17:20,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:17:20,239 INFO L495 AbstractCegarLoop]: Abstraction has 12307 states and 15239 transitions. [2023-12-22 00:17:20,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.694444444444445) internal successors, (313), 36 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 12307 states and 15239 transitions. [2023-12-22 00:17:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-22 00:17:20,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:17:20,242 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:17:20,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 00:17:20,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:17:20,446 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:17:20,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:17:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash -132781241, now seen corresponding path program 1 times [2023-12-22 00:17:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:17:20,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195996970] [2023-12-22 00:17:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:17:20,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:17:20,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:17:20,448 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:17:20,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 00:17:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:17:20,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:17:20,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:17:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 70 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:22,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:17:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 70 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:23,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:17:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195996970] [2023-12-22 00:17:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195996970] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:17:23,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:17:23,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:17:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946934017] [2023-12-22 00:17:23,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:17:23,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:17:23,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:17:23,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:17:23,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:17:23,622 INFO L87 Difference]: Start difference. First operand 12307 states and 15239 transitions. Second operand has 36 states, 36 states have (on average 8.555555555555555) internal successors, (308), 36 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:45,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:17:45,502 INFO L93 Difference]: Finished difference Result 16236 states and 19826 transitions. [2023-12-22 00:17:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:17:45,503 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.555555555555555) internal successors, (308), 36 states have internal predecessors, (308), 0 states have call successors, (0), 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 165 [2023-12-22 00:17:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:17:45,517 INFO L225 Difference]: With dead ends: 16236 [2023-12-22 00:17:45,518 INFO L226 Difference]: Without dead ends: 14121 [2023-12-22 00:17:45,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6978 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:17:45,523 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 5282 mSDsluCounter, 36733 mSDsCounter, 0 mSdLazyCounter, 6553 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5282 SdHoareTripleChecker+Valid, 38476 SdHoareTripleChecker+Invalid, 6581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:17:45,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5282 Valid, 38476 Invalid, 6581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 6553 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-22 00:17:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14121 states. [2023-12-22 00:17:46,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14121 to 12115. [2023-12-22 00:17:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12115 states, 12113 states have (on average 1.2371831916123173) internal successors, (14986), 12114 states have internal predecessors, (14986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12115 states to 12115 states and 14986 transitions. [2023-12-22 00:17:46,200 INFO L78 Accepts]: Start accepts. Automaton has 12115 states and 14986 transitions. Word has length 165 [2023-12-22 00:17:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:17:46,200 INFO L495 AbstractCegarLoop]: Abstraction has 12115 states and 14986 transitions. [2023-12-22 00:17:46,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.555555555555555) internal successors, (308), 36 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12115 states and 14986 transitions. [2023-12-22 00:17:46,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-22 00:17:46,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:17:46,203 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:17:46,207 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 (35)] Forceful destruction successful, exit code 0 [2023-12-22 00:17:46,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:17:46,407 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:17:46,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:17:46,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1550413406, now seen corresponding path program 1 times [2023-12-22 00:17:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:17:46,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207707114] [2023-12-22 00:17:46,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:17:46,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:17:46,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:17:46,409 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:17:46,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 00:17:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:17:46,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:17:46,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:17:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 32 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:48,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:17:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 32 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:17:49,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:17:49,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207707114] [2023-12-22 00:17:49,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207707114] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:17:49,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:17:49,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:17:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655312839] [2023-12-22 00:17:49,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:17:49,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:17:49,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:17:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:17:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:17:49,688 INFO L87 Difference]: Start difference. First operand 12115 states and 14986 transitions. Second operand has 36 states, 36 states have (on average 9.0) internal successors, (324), 36 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:17:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:17:59,129 INFO L93 Difference]: Finished difference Result 19956 states and 24122 transitions. [2023-12-22 00:17:59,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-22 00:17:59,130 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.0) internal successors, (324), 36 states have internal predecessors, (324), 0 states have call successors, (0), 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 166 [2023-12-22 00:17:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:17:59,148 INFO L225 Difference]: With dead ends: 19956 [2023-12-22 00:17:59,148 INFO L226 Difference]: Without dead ends: 18502 [2023-12-22 00:17:59,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1763 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=912, Invalid=7098, Unknown=0, NotChecked=0, Total=8010 [2023-12-22 00:17:59,159 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 4931 mSDsluCounter, 33361 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 34985 SdHoareTripleChecker+Invalid, 3638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:17:59,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 34985 Invalid, 3638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 3621 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-22 00:17:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18502 states. [2023-12-22 00:18:00,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18502 to 17255. [2023-12-22 00:18:00,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17255 states, 17253 states have (on average 1.213991769547325) internal successors, (20945), 17254 states have internal predecessors, (20945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:00,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17255 states to 17255 states and 20945 transitions. [2023-12-22 00:18:00,372 INFO L78 Accepts]: Start accepts. Automaton has 17255 states and 20945 transitions. Word has length 166 [2023-12-22 00:18:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:18:00,373 INFO L495 AbstractCegarLoop]: Abstraction has 17255 states and 20945 transitions. [2023-12-22 00:18:00,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.0) internal successors, (324), 36 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:18:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 17255 states and 20945 transitions. [2023-12-22 00:18:00,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-22 00:18:00,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:18:00,384 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:18:00,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-22 00:18:00,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:00,587 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:18:00,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:18:00,587 INFO L85 PathProgramCache]: Analyzing trace with hash 803649524, now seen corresponding path program 2 times [2023-12-22 00:18:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:18:00,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229709716] [2023-12-22 00:18:00,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:18:00,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:18:00,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:18:00,589 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:18:00,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 00:18:00,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:18:00,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:18:00,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:18:00,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:18:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 77 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:03,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:18:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 77 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:18:04,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:18:04,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229709716] [2023-12-22 00:18:04,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229709716] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:18:04,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:18:04,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:18:04,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741535073] [2023-12-22 00:18:04,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:18:04,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:18:04,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:18:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:18:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:18:04,915 INFO L87 Difference]: Start difference. First operand 17255 states and 20945 transitions. Second operand has 44 states, 44 states have (on average 9.181818181818182) internal successors, (404), 44 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:19:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:19:00,779 INFO L93 Difference]: Finished difference Result 22986 states and 27715 transitions. [2023-12-22 00:19:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2023-12-22 00:19:00,781 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 9.181818181818182) internal successors, (404), 44 states have internal predecessors, (404), 0 states have call successors, (0), 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 211 [2023-12-22 00:19:00,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:19:00,801 INFO L225 Difference]: With dead ends: 22986 [2023-12-22 00:19:00,801 INFO L226 Difference]: Without dead ends: 18790 [2023-12-22 00:19:00,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27231 ImplicationChecksByTransitivity, 41.9s TimeCoverageRelationStatistics Valid=7844, Invalid=70276, Unknown=0, NotChecked=0, Total=78120 [2023-12-22 00:19:00,808 INFO L413 NwaCegarLoop]: 1780 mSDtfsCounter, 30832 mSDsluCounter, 22687 mSDsCounter, 0 mSdLazyCounter, 7669 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30832 SdHoareTripleChecker+Valid, 24467 SdHoareTripleChecker+Invalid, 7771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 7669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:19:00,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30832 Valid, 24467 Invalid, 7771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [102 Valid, 7669 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-12-22 00:19:00,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18790 states. [2023-12-22 00:19:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18790 to 17887. [2023-12-22 00:19:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17887 states, 17885 states have (on average 1.2108470785574503) internal successors, (21656), 17886 states have internal predecessors, (21656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:19:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17887 states to 17887 states and 21656 transitions. [2023-12-22 00:19:02,054 INFO L78 Accepts]: Start accepts. Automaton has 17887 states and 21656 transitions. Word has length 211 [2023-12-22 00:19:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:19:02,055 INFO L495 AbstractCegarLoop]: Abstraction has 17887 states and 21656 transitions. [2023-12-22 00:19:02,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 9.181818181818182) internal successors, (404), 44 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:19:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 17887 states and 21656 transitions. [2023-12-22 00:19:02,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-22 00:19:02,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:19:02,064 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:19:02,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-22 00:19:02,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:19:02,269 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:19:02,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:19:02,269 INFO L85 PathProgramCache]: Analyzing trace with hash 331419032, now seen corresponding path program 2 times [2023-12-22 00:19:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:19:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183228982] [2023-12-22 00:19:02,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:19:02,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:19:02,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:19:02,271 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:19:02,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 00:19:02,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:19:02,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:19:02,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:19:02,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:19:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 100 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:19:06,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:19:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 100 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:19:09,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:19:09,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183228982] [2023-12-22 00:19:09,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183228982] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:19:09,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:19:09,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:19:09,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458791443] [2023-12-22 00:19:09,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:19:09,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:19:09,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:19:09,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:19:09,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:19:09,209 INFO L87 Difference]: Start difference. First operand 17887 states and 21656 transitions. Second operand has 44 states, 44 states have (on average 9.068181818181818) internal successors, (399), 44 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:22:52,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:22:52,309 INFO L93 Difference]: Finished difference Result 100971 states and 119513 transitions. [2023-12-22 00:22:52,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 811 states. [2023-12-22 00:22:52,310 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 9.068181818181818) internal successors, (399), 44 states have internal predecessors, (399), 0 states have call successors, (0), 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 211 [2023-12-22 00:22:52,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:22:52,433 INFO L225 Difference]: With dead ends: 100971 [2023-12-22 00:22:52,433 INFO L226 Difference]: Without dead ends: 98785 [2023-12-22 00:22:52,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1227 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 848 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325328 ImplicationChecksByTransitivity, 187.1s TimeCoverageRelationStatistics Valid=42272, Invalid=679378, Unknown=0, NotChecked=0, Total=721650 [2023-12-22 00:22:52,477 INFO L413 NwaCegarLoop]: 2070 mSDtfsCounter, 34326 mSDsluCounter, 23134 mSDsCounter, 0 mSdLazyCounter, 12728 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34326 SdHoareTripleChecker+Valid, 25204 SdHoareTripleChecker+Invalid, 12844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 12728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:22:52,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34326 Valid, 25204 Invalid, 12844 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [116 Valid, 12728 Invalid, 0 Unknown, 0 Unchecked, 28.5s Time] [2023-12-22 00:22:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98785 states. [2023-12-22 00:22:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98785 to 81149. [2023-12-22 00:22:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81149 states, 81147 states have (on average 1.1832969795556212) internal successors, (96021), 81148 states have internal predecessors, (96021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:22:59,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81149 states to 81149 states and 96021 transitions. [2023-12-22 00:22:59,679 INFO L78 Accepts]: Start accepts. Automaton has 81149 states and 96021 transitions. Word has length 211 [2023-12-22 00:22:59,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:22:59,679 INFO L495 AbstractCegarLoop]: Abstraction has 81149 states and 96021 transitions. [2023-12-22 00:22:59,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 9.068181818181818) internal successors, (399), 44 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:22:59,680 INFO L276 IsEmpty]: Start isEmpty. Operand 81149 states and 96021 transitions. [2023-12-22 00:22:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-22 00:22:59,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:22:59,708 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:22:59,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-22 00:22:59,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:22:59,912 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:22:59,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:22:59,913 INFO L85 PathProgramCache]: Analyzing trace with hash 730162420, now seen corresponding path program 1 times [2023-12-22 00:22:59,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:22:59,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788029868] [2023-12-22 00:22:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:22:59,914 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 00:22:59,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:22:59,915 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:22:59,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 00:23:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:23:00,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 00:23:00,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:23:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 266 proven. 192 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:23:03,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:23:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 266 proven. 192 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:23:06,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:23:06,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788029868] [2023-12-22 00:23:06,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788029868] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:23:06,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:23:06,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:23:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661269994] [2023-12-22 00:23:06,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:23:06,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:23:06,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:23:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:23:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1722, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:23:06,231 INFO L87 Difference]: Start difference. First operand 81149 states and 96021 transitions. Second operand has 44 states, 44 states have (on average 7.363636363636363) internal successors, (324), 44 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-22 00:25:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2023-12-22 00:25:44,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43429 ImplicationChecksByTransitivity, 133.0s TimeCoverageRelationStatistics Valid=8993, Invalid=100237, Unknown=0, NotChecked=0, Total=109230 [2023-12-22 00:25:44,191 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 4935 mSDsluCounter, 5442 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 5736 SdHoareTripleChecker+Invalid, 5300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:25:44,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 5736 Invalid, 5300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [146 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 26.5s Time] [2023-12-22 00:25:44,193 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:25:44,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-22 00:25:44,207 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:25:44,207 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:25:44,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:25:44,395 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (81149states) and FLOYD_HOARE automaton (currently 294 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 331 known predicates. [2023-12-22 00:25:44,396 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:25:44,399 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:25:44,401 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:25:44,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:25:44 BoogieIcfgContainer [2023-12-22 00:25:44,403 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:25:44,403 INFO L158 Benchmark]: Toolchain (without parser) took 867883.95ms. Allocated memory was 206.6MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 143.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 953.0MB. Max. memory is 8.0GB. [2023-12-22 00:25:44,403 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 206.6MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:25:44,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1435.82ms. Allocated memory was 206.6MB in the beginning and 283.1MB in the end (delta: 76.5MB). Free memory was 142.9MB in the beginning and 205.7MB in the end (delta: -62.8MB). Peak memory consumption was 147.2MB. Max. memory is 8.0GB. [2023-12-22 00:25:44,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 223.10ms. Allocated memory is still 283.1MB. Free memory was 205.7MB in the beginning and 205.8MB in the end (delta: -116.2kB). Peak memory consumption was 37.6MB. Max. memory is 8.0GB. [2023-12-22 00:25:44,403 INFO L158 Benchmark]: Boogie Preprocessor took 291.79ms. Allocated memory is still 283.1MB. Free memory was 205.8MB in the beginning and 199.5MB in the end (delta: 6.3MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2023-12-22 00:25:44,404 INFO L158 Benchmark]: RCFGBuilder took 36855.22ms. Allocated memory was 283.1MB in the beginning and 629.1MB in the end (delta: 346.0MB). Free memory was 199.5MB in the beginning and 520.9MB in the end (delta: -321.4MB). Peak memory consumption was 208.1MB. Max. memory is 8.0GB. [2023-12-22 00:25:44,404 INFO L158 Benchmark]: TraceAbstraction took 829069.66ms. Allocated memory was 629.1MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 520.4MB in the beginning and 1.4GB in the end (delta: -856.6MB). Peak memory consumption was 906.5MB. Max. memory is 8.0GB. [2023-12-22 00:25:44,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 206.6MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1435.82ms. Allocated memory was 206.6MB in the beginning and 283.1MB in the end (delta: 76.5MB). Free memory was 142.9MB in the beginning and 205.7MB in the end (delta: -62.8MB). Peak memory consumption was 147.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 223.10ms. Allocated memory is still 283.1MB. Free memory was 205.7MB in the beginning and 205.8MB in the end (delta: -116.2kB). Peak memory consumption was 37.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 291.79ms. Allocated memory is still 283.1MB. Free memory was 205.8MB in the beginning and 199.5MB in the end (delta: 6.3MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * RCFGBuilder took 36855.22ms. Allocated memory was 283.1MB in the beginning and 629.1MB in the end (delta: 346.0MB). Free memory was 199.5MB in the beginning and 520.9MB in the end (delta: -321.4MB). Peak memory consumption was 208.1MB. Max. memory is 8.0GB. * TraceAbstraction took 829069.66ms. Allocated memory was 629.1MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 520.4MB in the beginning and 1.4GB in the end (delta: -856.6MB). Peak memory consumption was 906.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 366]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 366). Cancelled while NwaCegarLoop was constructing difference of abstraction (81149states) and FLOYD_HOARE automaton (currently 294 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 331 known predicates. - TimeoutResultAtElement [Line: 525]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 525). Cancelled while NwaCegarLoop was constructing difference of abstraction (81149states) and FLOYD_HOARE automaton (currently 294 states, 44 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 331 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 822 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 829.0s, OverallIterations: 38, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 742.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204834 SdHoareTripleChecker+Valid, 300.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204834 mSDsluCounter, 414505 SdHoareTripleChecker+Invalid, 260.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357937 mSDsCounter, 4439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69271 IncrementalHoareTripleChecker+Invalid, 73710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4439 mSolverCounterUnsat, 56568 mSDtfsCounter, 69271 mSolverCounterSat, 1.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8437 GetRequests, 5884 SyntacticMatches, 0 SemanticMatches, 2552 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422329 ImplicationChecksByTransitivity, 432.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81149occurred in iteration=37, InterpolantAutomatonStates: 1894, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.4s AutomataMinimizationTime, 37 MinimizatonAttempts, 50929 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 56.2s InterpolantComputationTime, 3892 NumberOfCodeBlocks, 3460 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 6410 ConstructedInterpolants, 1842 QuantifiedInterpolants, 88195 SizeOfPredicates, 199 NumberOfNonLiveVariables, 8187 ConjunctsInSsa, 345 ConjunctsInUnsatCore, 58 InterpolantComputations, 18 PerfectInterpolantSequences, 2992/7814 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown