/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.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:45:18,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:45:18,071 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 00:45:18,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:45:18,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:45:18,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:45:18,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:45:18,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:45:18,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:45:18,088 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:45:18,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:45:18,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:45:18,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:45:18,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:45:18,089 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:45:18,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:45:18,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:45:18,090 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:45:18,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:45:18,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:45:18,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:45:18,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:45:18,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:45:18,094 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:45:18,094 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:45:18,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:45:18,094 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:45:18,095 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:45:18,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:45:18,095 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:45:18,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:45:18,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:45:18,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:45:18,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:45:18,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:45:18,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:45:18,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:45:18,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:45:18,098 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:45:18,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:45:18,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:45:18,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:45:18,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:45:18,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:45:18,318 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:45:18,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-22 00:45:19,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:45:19,786 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:45:19,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-22 00:45:19,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0462e6934/03363ed3e709461f85ef68706507fae7/FLAG1c0061fec [2023-12-22 00:45:19,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0462e6934/03363ed3e709461f85ef68706507fae7 [2023-12-22 00:45:19,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:45:19,840 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:45:19,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:45:19,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:45:19,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:45:19,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:45:19" (1/1) ... [2023-12-22 00:45:19,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4e90ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:19, skipping insertion in model container [2023-12-22 00:45:19,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:45:19" (1/1) ... [2023-12-22 00:45:19,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:45:20,282 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.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[11705,11718] [2023-12-22 00:45:20,350 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.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[19453,19466] [2023-12-22 00:45:20,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:45:20,916 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:45:20,949 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.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[11705,11718] [2023-12-22 00:45:20,962 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.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c[19453,19466] [2023-12-22 00:45:21,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:45:21,306 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:45:21,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21 WrapperNode [2023-12-22 00:45:21,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:45:21,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:45:21,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:45:21,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:45:21,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,448 INFO L138 Inliner]: procedures = 38, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5069 [2023-12-22 00:45:21,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:45:21,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:45:21,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:45:21,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:45:21,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,568 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 00:45:21,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:45:21,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:45:21,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:45:21,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:45:21,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (1/1) ... [2023-12-22 00:45:21,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:45:21,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:45:21,808 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 00:45:21,823 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 00:45:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:45:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:45:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:45:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:45:21,997 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:45:21,999 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:45:48,344 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:45:48,383 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:45:48,384 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:45:48,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:45:48 BoogieIcfgContainer [2023-12-22 00:45:48,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:45:48,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:45:48,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:45:48,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:45:48,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:45:19" (1/3) ... [2023-12-22 00:45:48,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210761b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:45:48, skipping insertion in model container [2023-12-22 00:45:48,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:45:21" (2/3) ... [2023-12-22 00:45:48,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210761b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:45:48, skipping insertion in model container [2023-12-22 00:45:48,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:45:48" (3/3) ... [2023-12-22 00:45:48,389 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals+Problem12_label09.c [2023-12-22 00:45:48,401 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:45:48,401 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:45:48,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:45:48,461 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;@6b26d658, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:45:48,461 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:45:48,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 00:45:48,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:48,477 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] [2023-12-22 00:45:48,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:48,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1695125417, now seen corresponding path program 1 times [2023-12-22 00:45:48,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:48,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266321040] [2023-12-22 00:45:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:48,493 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 00:45:48,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:48,495 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 00:45:48,502 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 00:45:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:48,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:45:48,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:45:48,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:48,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266321040] [2023-12-22 00:45:48,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266321040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:48,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:48,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:45:48,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881207524] [2023-12-22 00:45:48,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:48,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:45:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:48,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:45:48,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:45:48,636 INFO L87 Difference]: Start difference. First operand has 836 states, 833 states have (on average 1.9747899159663866) internal successors, (1645), 835 states have internal predecessors, (1645), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:48,718 INFO L93 Difference]: Finished difference Result 1636 states and 3221 transitions. [2023-12-22 00:45:48,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:45:48,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-22 00:45:48,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:48,733 INFO L225 Difference]: With dead ends: 1636 [2023-12-22 00:45:48,733 INFO L226 Difference]: Without dead ends: 832 [2023-12-22 00:45:48,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 00:45:48,740 INFO L413 NwaCegarLoop]: 1573 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, 1573 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 00:45:48,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:48,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-12-22 00:45:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2023-12-22 00:45:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 830 states have (on average 1.8963855421686746) internal successors, (1574), 831 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1574 transitions. [2023-12-22 00:45:48,803 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1574 transitions. Word has length 21 [2023-12-22 00:45:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:48,803 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1574 transitions. [2023-12-22 00:45:48,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1574 transitions. [2023-12-22 00:45:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-22 00:45:48,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:48,812 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] [2023-12-22 00:45:48,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 00:45:49,015 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 00:45:49,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:49,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash 106777515, now seen corresponding path program 1 times [2023-12-22 00:45:49,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:49,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011367059] [2023-12-22 00:45:49,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:49,018 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 00:45:49,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:49,020 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 00:45:49,025 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 00:45:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:49,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:45:49,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:49,116 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 00:45:49,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:49,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:49,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011367059] [2023-12-22 00:45:49,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011367059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:49,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:49,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:45:49,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991354923] [2023-12-22 00:45:49,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:49,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:45:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:49,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:45:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:45:49,119 INFO L87 Difference]: Start difference. First operand 832 states and 1574 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:49,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:49,197 INFO L93 Difference]: Finished difference Result 878 states and 1646 transitions. [2023-12-22 00:45:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:45:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-12-22 00:45:49,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:49,202 INFO L225 Difference]: With dead ends: 878 [2023-12-22 00:45:49,202 INFO L226 Difference]: Without dead ends: 832 [2023-12-22 00:45:49,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 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 00:45:49,205 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4678 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:49,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4678 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-12-22 00:45:49,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2023-12-22 00:45:49,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 830 states have (on average 1.8590361445783132) internal successors, (1543), 831 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1543 transitions. [2023-12-22 00:45:49,231 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1543 transitions. Word has length 21 [2023-12-22 00:45:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:49,231 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1543 transitions. [2023-12-22 00:45:49,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:49,232 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1543 transitions. [2023-12-22 00:45:49,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-22 00:45:49,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:49,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:49,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:49,440 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 00:45:49,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:49,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1212971778, now seen corresponding path program 1 times [2023-12-22 00:45:49,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:49,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585797827] [2023-12-22 00:45:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:49,442 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 00:45:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:49,443 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 00:45:49,448 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 00:45:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:49,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:45:49,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:50,219 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 00:45:50,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:50,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:50,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585797827] [2023-12-22 00:45:50,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585797827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:50,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:45:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773953313] [2023-12-22 00:45:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:50,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:45:50,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:45:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:45:50,221 INFO L87 Difference]: Start difference. First operand 832 states and 1543 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:50,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:50,421 INFO L93 Difference]: Finished difference Result 1090 states and 1957 transitions. [2023-12-22 00:45:50,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:45:50,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-22 00:45:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:50,425 INFO L225 Difference]: With dead ends: 1090 [2023-12-22 00:45:50,425 INFO L226 Difference]: Without dead ends: 1047 [2023-12-22 00:45:50,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:45:50,428 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 4738 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:50,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 1914 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:45:50,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-12-22 00:45:50,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 914. [2023-12-22 00:45:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 912 states have (on average 1.837719298245614) internal successors, (1676), 913 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1676 transitions. [2023-12-22 00:45:50,445 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1676 transitions. Word has length 51 [2023-12-22 00:45:50,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:50,446 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1676 transitions. [2023-12-22 00:45:50,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:50,446 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1676 transitions. [2023-12-22 00:45:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-22 00:45:50,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:50,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:50,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 00:45:50,653 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 00:45:50,653 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:50,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1583069298, now seen corresponding path program 1 times [2023-12-22 00:45:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:50,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583676376] [2023-12-22 00:45:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:50,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:45:50,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:50,662 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 00:45:50,706 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 00:45:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:50,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:50,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:50,860 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 00:45:50,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:50,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583676376] [2023-12-22 00:45:50,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583676376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:50,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:50,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:50,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623781689] [2023-12-22 00:45:50,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:50,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:50,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:50,862 INFO L87 Difference]: Start difference. First operand 914 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:50,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:50,955 INFO L93 Difference]: Finished difference Result 1148 states and 2052 transitions. [2023-12-22 00:45:50,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:50,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-22 00:45:50,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:50,961 INFO L225 Difference]: With dead ends: 1148 [2023-12-22 00:45:50,961 INFO L226 Difference]: Without dead ends: 1023 [2023-12-22 00:45:50,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 00:45:50,964 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1482 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1597 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 00:45:50,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1597 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:50,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-22 00:45:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1018. [2023-12-22 00:45:50,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1016 states have (on average 1.8090551181102361) internal successors, (1838), 1017 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:50,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1838 transitions. [2023-12-22 00:45:50,988 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1838 transitions. Word has length 53 [2023-12-22 00:45:50,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:50,988 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1838 transitions. [2023-12-22 00:45:50,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:50,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1838 transitions. [2023-12-22 00:45:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-22 00:45:50,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:50,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:51,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:51,193 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 00:45:51,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:51,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:51,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1767897232, now seen corresponding path program 1 times [2023-12-22 00:45:51,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:51,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544167424] [2023-12-22 00:45:51,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:51,194 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 00:45:51,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:51,217 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 00:45:51,233 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 00:45:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:51,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:45:51,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:51,330 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 00:45:51,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:51,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:51,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544167424] [2023-12-22 00:45:51,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544167424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:51,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:51,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:45:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841842207] [2023-12-22 00:45:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:51,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:45:51,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:45:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:45:51,332 INFO L87 Difference]: Start difference. First operand 1018 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:51,414 INFO L93 Difference]: Finished difference Result 1032 states and 1855 transitions. [2023-12-22 00:45:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:45:51,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-22 00:45:51,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:51,420 INFO L225 Difference]: With dead ends: 1032 [2023-12-22 00:45:51,421 INFO L226 Difference]: Without dead ends: 1030 [2023-12-22 00:45:51,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 00:45:51,421 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4609 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:45:51,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4609 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:45:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-22 00:45:51,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1026. [2023-12-22 00:45:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1024 states have (on average 1.8017578125) internal successors, (1845), 1025 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1845 transitions. [2023-12-22 00:45:51,441 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1845 transitions. Word has length 54 [2023-12-22 00:45:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:51,441 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1845 transitions. [2023-12-22 00:45:51,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1845 transitions. [2023-12-22 00:45:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:51,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:51,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:51,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:51,651 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 00:45:51,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:51,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1923112714, now seen corresponding path program 1 times [2023-12-22 00:45:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:51,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655851623] [2023-12-22 00:45:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:51,654 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 00:45:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:51,655 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 00:45:51,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 00:45:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:51,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:51,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:51,795 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 00:45:51,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:51,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:51,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655851623] [2023-12-22 00:45:51,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655851623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:51,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:51,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430681046] [2023-12-22 00:45:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:51,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:51,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:51,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:51,797 INFO L87 Difference]: Start difference. First operand 1026 states and 1845 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:51,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:51,830 INFO L93 Difference]: Finished difference Result 1476 states and 2545 transitions. [2023-12-22 00:45:51,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:51,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 00:45:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:51,836 INFO L225 Difference]: With dead ends: 1476 [2023-12-22 00:45:51,836 INFO L226 Difference]: Without dead ends: 1239 [2023-12-22 00:45:51,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:51,839 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1495 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1658 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 00:45:51,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1658 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-12-22 00:45:51,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1237. [2023-12-22 00:45:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1235 states have (on average 1.754655870445344) internal successors, (2167), 1236 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2167 transitions. [2023-12-22 00:45:51,862 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2167 transitions. Word has length 55 [2023-12-22 00:45:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:51,863 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 2167 transitions. [2023-12-22 00:45:51,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2167 transitions. [2023-12-22 00:45:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:51,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:51,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:51,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:52,067 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 00:45:52,068 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:52,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:52,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1963056650, now seen corresponding path program 1 times [2023-12-22 00:45:52,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:52,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738076421] [2023-12-22 00:45:52,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:52,069 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 00:45:52,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:52,070 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 00:45:52,104 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 00:45:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:52,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:52,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:52,195 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 00:45:52,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:52,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:52,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738076421] [2023-12-22 00:45:52,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738076421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:52,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:52,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:52,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248177837] [2023-12-22 00:45:52,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:52,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:52,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:52,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:52,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:52,197 INFO L87 Difference]: Start difference. First operand 1237 states and 2167 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:52,233 INFO L93 Difference]: Finished difference Result 2085 states and 3469 transitions. [2023-12-22 00:45:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:52,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 00:45:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:52,240 INFO L225 Difference]: With dead ends: 2085 [2023-12-22 00:45:52,240 INFO L226 Difference]: Without dead ends: 1637 [2023-12-22 00:45:52,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:52,241 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 1493 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1660 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 00:45:52,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1660 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:52,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-12-22 00:45:52,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1635. [2023-12-22 00:45:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1633 states have (on average 1.6919779546846294) internal successors, (2763), 1634 states have internal predecessors, (2763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2763 transitions. [2023-12-22 00:45:52,267 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2763 transitions. Word has length 55 [2023-12-22 00:45:52,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:52,267 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2763 transitions. [2023-12-22 00:45:52,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2763 transitions. [2023-12-22 00:45:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:52,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:52,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:52,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 00:45:52,471 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 00:45:52,472 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:52,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1337400586, now seen corresponding path program 1 times [2023-12-22 00:45:52,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:52,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787214023] [2023-12-22 00:45:52,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:52,473 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 00:45:52,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:52,474 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 00:45:52,476 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 00:45:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:52,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:52,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:52,621 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 00:45:52,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:52,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:52,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787214023] [2023-12-22 00:45:52,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787214023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:52,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:52,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558558324] [2023-12-22 00:45:52,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:52,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:52,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:52,622 INFO L87 Difference]: Start difference. First operand 1635 states and 2763 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:52,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:52,678 INFO L93 Difference]: Finished difference Result 3231 states and 5173 transitions. [2023-12-22 00:45:52,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:52,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 00:45:52,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:52,685 INFO L225 Difference]: With dead ends: 3231 [2023-12-22 00:45:52,685 INFO L226 Difference]: Without dead ends: 2385 [2023-12-22 00:45:52,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:52,687 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 1491 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1662 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 00:45:52,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2023-12-22 00:45:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2383. [2023-12-22 00:45:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2381 states have (on average 1.620747585048299) internal successors, (3859), 2382 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3859 transitions. [2023-12-22 00:45:52,727 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3859 transitions. Word has length 55 [2023-12-22 00:45:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:52,728 INFO L495 AbstractCegarLoop]: Abstraction has 2383 states and 3859 transitions. [2023-12-22 00:45:52,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3859 transitions. [2023-12-22 00:45:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-22 00:45:52,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:52,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:52,745 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 00:45:52,932 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 00:45:52,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:52,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2068833270, now seen corresponding path program 1 times [2023-12-22 00:45:52,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:52,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907715687] [2023-12-22 00:45:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:52,933 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 00:45:52,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:52,934 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 00:45:52,936 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 00:45:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:53,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:53,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:53,076 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 00:45:53,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:53,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907715687] [2023-12-22 00:45:53,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907715687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:53,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:53,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:53,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611400698] [2023-12-22 00:45:53,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:53,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:53,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:53,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:53,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:53,080 INFO L87 Difference]: Start difference. First operand 2383 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:53,141 INFO L93 Difference]: Finished difference Result 5379 states and 8293 transitions. [2023-12-22 00:45:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:53,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-22 00:45:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:53,152 INFO L225 Difference]: With dead ends: 5379 [2023-12-22 00:45:53,152 INFO L226 Difference]: Without dead ends: 3785 [2023-12-22 00:45:53,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:53,158 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1489 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1664 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 00:45:53,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3785 states. [2023-12-22 00:45:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3785 to 3783. [2023-12-22 00:45:53,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 3781 states have (on average 1.5495900555408622) internal successors, (5859), 3782 states have internal predecessors, (5859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:53,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 5859 transitions. [2023-12-22 00:45:53,227 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 5859 transitions. Word has length 55 [2023-12-22 00:45:53,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:53,227 INFO L495 AbstractCegarLoop]: Abstraction has 3783 states and 5859 transitions. [2023-12-22 00:45:53,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:53,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 5859 transitions. [2023-12-22 00:45:53,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 00:45:53,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:53,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:53,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-22 00:45:53,430 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 00:45:53,431 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:53,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1474848977, now seen corresponding path program 1 times [2023-12-22 00:45:53,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:53,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373081197] [2023-12-22 00:45:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:53,432 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 00:45:53,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:53,433 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 00:45:53,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 00:45:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:53,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:53,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:53,576 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 00:45:53,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:53,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:53,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373081197] [2023-12-22 00:45:53,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373081197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:53,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:53,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:45:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506545969] [2023-12-22 00:45:53,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:53,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:53,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:53,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:53,578 INFO L87 Difference]: Start difference. First operand 3783 states and 5859 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:53,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:45:53,638 INFO L93 Difference]: Finished difference Result 6862 states and 10473 transitions. [2023-12-22 00:45:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:45:53,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-22 00:45:53,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:45:53,652 INFO L225 Difference]: With dead ends: 6862 [2023-12-22 00:45:53,652 INFO L226 Difference]: Without dead ends: 5179 [2023-12-22 00:45:53,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 00:45:53,656 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 1494 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1659 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 00:45:53,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:45:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5179 states. [2023-12-22 00:45:53,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5179 to 5177. [2023-12-22 00:45:53,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5175 states have (on average 1.5221256038647344) internal successors, (7877), 5176 states have internal predecessors, (7877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 7877 transitions. [2023-12-22 00:45:53,786 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 7877 transitions. Word has length 57 [2023-12-22 00:45:53,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:45:53,786 INFO L495 AbstractCegarLoop]: Abstraction has 5177 states and 7877 transitions. [2023-12-22 00:45:53,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:45:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 7877 transitions. [2023-12-22 00:45:53,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 00:45:53,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:45:53,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:45:53,803 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 00:45:53,988 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 00:45:53,988 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:45:53,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:45:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash -376680501, now seen corresponding path program 1 times [2023-12-22 00:45:53,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:45:53,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956778366] [2023-12-22 00:45:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:45:53,989 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 00:45:53,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:45:53,991 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 00:45:54,021 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 00:45:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:45:54,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:45:54,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:45:54,137 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 00:45:54,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:45:54,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:45:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956778366] [2023-12-22 00:45:54,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956778366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:45:54,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:45:54,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:45:54,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898671897] [2023-12-22 00:45:54,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:45:54,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:45:54,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:45:54,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:45:54,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:45:54,139 INFO L87 Difference]: Start difference. First operand 5177 states and 7877 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:30,179 INFO L93 Difference]: Finished difference Result 6681 states and 10750 transitions. [2023-12-22 00:46:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:30,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 00:46:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:30,197 INFO L225 Difference]: With dead ends: 6681 [2023-12-22 00:46:30,197 INFO L226 Difference]: Without dead ends: 5928 [2023-12-22 00:46:30,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:30,200 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 856 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:30,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 529 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 35.8s Time] [2023-12-22 00:46:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2023-12-22 00:46:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5928. [2023-12-22 00:46:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 1.5025312183597705) internal successors, (8904), 5927 states have internal predecessors, (8904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8904 transitions. [2023-12-22 00:46:30,290 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8904 transitions. Word has length 66 [2023-12-22 00:46:30,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:30,290 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 8904 transitions. [2023-12-22 00:46:30,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8904 transitions. [2023-12-22 00:46:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 00:46:30,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:30,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:30,302 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 00:46:30,492 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 00:46:30,492 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:30,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:30,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1067448203, now seen corresponding path program 1 times [2023-12-22 00:46:30,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:30,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13027923] [2023-12-22 00:46:30,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:30,493 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 00:46:30,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:30,494 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 00:46:30,523 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 00:46:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:30,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:30,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:30,598 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 00:46:30,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:30,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:30,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13027923] [2023-12-22 00:46:30,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13027923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:30,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:30,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:30,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954787072] [2023-12-22 00:46:30,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:30,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:30,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:30,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:30,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:30,601 INFO L87 Difference]: Start difference. First operand 5928 states and 8904 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:30,704 INFO L93 Difference]: Finished difference Result 9023 states and 13486 transitions. [2023-12-22 00:46:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:30,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-22 00:46:30,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:30,720 INFO L225 Difference]: With dead ends: 9023 [2023-12-22 00:46:30,720 INFO L226 Difference]: Without dead ends: 4637 [2023-12-22 00:46:30,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 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 00:46:30,725 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 50 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:30,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:46:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-22 00:46:30,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2023-12-22 00:46:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4633 states have (on average 1.5184545650766241) internal successors, (7035), 4634 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 7035 transitions. [2023-12-22 00:46:30,789 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 7035 transitions. Word has length 73 [2023-12-22 00:46:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:30,789 INFO L495 AbstractCegarLoop]: Abstraction has 4635 states and 7035 transitions. [2023-12-22 00:46:30,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 7035 transitions. [2023-12-22 00:46:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 00:46:30,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:30,791 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:30,794 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 00:46:30,994 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 00:46:30,994 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:30,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:30,994 INFO L85 PathProgramCache]: Analyzing trace with hash 865276784, now seen corresponding path program 1 times [2023-12-22 00:46:30,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:30,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012846222] [2023-12-22 00:46:30,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:30,995 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 00:46:30,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:30,996 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 00:46:31,026 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 00:46:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:31,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:31,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:31,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:31,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:31,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012846222] [2023-12-22 00:46:31,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012846222] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:31,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:31,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:31,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20954100] [2023-12-22 00:46:31,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:31,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:31,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:31,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:31,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:31,994 INFO L87 Difference]: Start difference. First operand 4635 states and 7035 transitions. Second operand has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:33,970 INFO L93 Difference]: Finished difference Result 12829 states and 18872 transitions. [2023-12-22 00:46:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:46:33,970 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-22 00:46:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:33,985 INFO L225 Difference]: With dead ends: 12829 [2023-12-22 00:46:33,985 INFO L226 Difference]: Without dead ends: 9755 [2023-12-22 00:46:33,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 00:46:33,992 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 5159 mSDsluCounter, 12467 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5159 SdHoareTripleChecker+Valid, 14029 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:33,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5159 Valid, 14029 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 00:46:34,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2023-12-22 00:46:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 7707. [2023-12-22 00:46:34,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7707 states, 7705 states have (on average 1.492407527579494) internal successors, (11499), 7706 states have internal predecessors, (11499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7707 states to 7707 states and 11499 transitions. [2023-12-22 00:46:34,143 INFO L78 Accepts]: Start accepts. Automaton has 7707 states and 11499 transitions. Word has length 75 [2023-12-22 00:46:34,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:34,144 INFO L495 AbstractCegarLoop]: Abstraction has 7707 states and 11499 transitions. [2023-12-22 00:46:34,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 16 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7707 states and 11499 transitions. [2023-12-22 00:46:34,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-22 00:46:34,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:34,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:34,158 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 (14)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:34,348 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 00:46:34,348 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:34,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:34,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1317293592, now seen corresponding path program 1 times [2023-12-22 00:46:34,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:34,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109402268] [2023-12-22 00:46:34,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:34,350 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 00:46:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:34,351 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 00:46:34,379 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 00:46:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:34,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:34,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:34,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:34,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:34,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109402268] [2023-12-22 00:46:34,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109402268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:34,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:34,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:34,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345154131] [2023-12-22 00:46:34,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:34,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:34,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:34,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:34,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:34,456 INFO L87 Difference]: Start difference. First operand 7707 states and 11499 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:34,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:34,559 INFO L93 Difference]: Finished difference Result 10783 states and 15989 transitions. [2023-12-22 00:46:34,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:34,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-22 00:46:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:34,566 INFO L225 Difference]: With dead ends: 10783 [2023-12-22 00:46:34,566 INFO L226 Difference]: Without dead ends: 4637 [2023-12-22 00:46:34,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:34,571 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3091 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 00:46:34,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3091 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-22 00:46:34,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4635. [2023-12-22 00:46:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 4633 states have (on average 1.502913878696309) internal successors, (6963), 4634 states have internal predecessors, (6963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6963 transitions. [2023-12-22 00:46:34,641 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6963 transitions. Word has length 77 [2023-12-22 00:46:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:34,641 INFO L495 AbstractCegarLoop]: Abstraction has 4635 states and 6963 transitions. [2023-12-22 00:46:34,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6963 transitions. [2023-12-22 00:46:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-22 00:46:34,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:34,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:34,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-22 00:46:34,845 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 00:46:34,846 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:34,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1858897725, now seen corresponding path program 1 times [2023-12-22 00:46:34,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:34,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223407527] [2023-12-22 00:46:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:34,847 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 00:46:34,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:34,848 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 00:46:34,849 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 00:46:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:34,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:34,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:35,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:35,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:35,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223407527] [2023-12-22 00:46:35,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223407527] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:35,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:35,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:35,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598702195] [2023-12-22 00:46:35,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:35,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:35,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:35,907 INFO L87 Difference]: Start difference. First operand 4635 states and 6963 transitions. Second operand has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:36,803 INFO L93 Difference]: Finished difference Result 7817 states and 11516 transitions. [2023-12-22 00:46:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-22 00:46:36,803 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-22 00:46:36,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:36,809 INFO L225 Difference]: With dead ends: 7817 [2023-12-22 00:46:36,809 INFO L226 Difference]: Without dead ends: 4743 [2023-12-22 00:46:36,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-22 00:46:36,814 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 3063 mSDsluCounter, 13513 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 15011 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:36,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3063 Valid, 15011 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:46:36,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2023-12-22 00:46:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 4645. [2023-12-22 00:46:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4645 states, 4643 states have (on average 1.5022614688778806) internal successors, (6975), 4644 states have internal predecessors, (6975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4645 states to 4645 states and 6975 transitions. [2023-12-22 00:46:36,888 INFO L78 Accepts]: Start accepts. Automaton has 4645 states and 6975 transitions. Word has length 78 [2023-12-22 00:46:36,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:36,889 INFO L495 AbstractCegarLoop]: Abstraction has 4645 states and 6975 transitions. [2023-12-22 00:46:36,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.0) internal successors, (144), 16 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4645 states and 6975 transitions. [2023-12-22 00:46:36,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-22 00:46:36,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:36,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:36,906 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 00:46:37,093 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 00:46:37,093 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:37,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash 354892535, now seen corresponding path program 1 times [2023-12-22 00:46:37,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:37,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61926323] [2023-12-22 00:46:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:37,094 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 00:46:37,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:37,095 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 00:46:37,128 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 00:46:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:37,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:37,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:37,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:37,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:37,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61926323] [2023-12-22 00:46:37,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61926323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:37,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:37,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:37,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243269695] [2023-12-22 00:46:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:37,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:37,215 INFO L87 Difference]: Start difference. First operand 4645 states and 6975 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:46:37,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:37,262 INFO L93 Difference]: Finished difference Result 6185 states and 9197 transitions. [2023-12-22 00:46:37,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:37,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 80 [2023-12-22 00:46:37,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:37,268 INFO L225 Difference]: With dead ends: 6185 [2023-12-22 00:46:37,268 INFO L226 Difference]: Without dead ends: 3111 [2023-12-22 00:46:37,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 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 00:46:37,272 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 40 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3076 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 00:46:37,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3076 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:37,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2023-12-22 00:46:37,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3109. [2023-12-22 00:46:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3107 states have (on average 1.522690698422916) internal successors, (4731), 3108 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4731 transitions. [2023-12-22 00:46:37,318 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4731 transitions. Word has length 80 [2023-12-22 00:46:37,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:37,319 INFO L495 AbstractCegarLoop]: Abstraction has 3109 states and 4731 transitions. [2023-12-22 00:46:37,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:46:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4731 transitions. [2023-12-22 00:46:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 00:46:37,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:37,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:37,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:37,524 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 00:46:37,524 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:37,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1588615484, now seen corresponding path program 1 times [2023-12-22 00:46:37,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:37,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719850826] [2023-12-22 00:46:37,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:37,525 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 00:46:37,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:37,526 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 00:46:37,570 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 00:46:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:37,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:37,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:38,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:38,708 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:38,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:38,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719850826] [2023-12-22 00:46:38,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719850826] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:38,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:38,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:38,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652915614] [2023-12-22 00:46:38,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:38,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:38,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:38,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:38,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:38,710 INFO L87 Difference]: Start difference. First operand 3109 states and 4731 transitions. Second operand has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:39,906 INFO L93 Difference]: Finished difference Result 7269 states and 10591 transitions. [2023-12-22 00:46:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:46:39,906 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 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 81 [2023-12-22 00:46:39,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:39,914 INFO L225 Difference]: With dead ends: 7269 [2023-12-22 00:46:39,914 INFO L226 Difference]: Without dead ends: 5731 [2023-12-22 00:46:39,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:46:39,917 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 3567 mSDsluCounter, 10826 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 12400 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:39,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 12400 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:46:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2023-12-22 00:46:40,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 4789. [2023-12-22 00:46:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4789 states, 4787 states have (on average 1.4721119699185294) internal successors, (7047), 4788 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4789 states to 4789 states and 7047 transitions. [2023-12-22 00:46:40,054 INFO L78 Accepts]: Start accepts. Automaton has 4789 states and 7047 transitions. Word has length 81 [2023-12-22 00:46:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:40,054 INFO L495 AbstractCegarLoop]: Abstraction has 4789 states and 7047 transitions. [2023-12-22 00:46:40,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4789 states and 7047 transitions. [2023-12-22 00:46:40,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-22 00:46:40,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:40,065 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:40,078 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 (18)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:40,268 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 00:46:40,269 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:40,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash -684318716, now seen corresponding path program 1 times [2023-12-22 00:46:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:40,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369569850] [2023-12-22 00:46:40,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:40,270 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 00:46:40,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:40,271 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 00:46:40,273 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 (19)] Waiting until timeout for monitored process [2023-12-22 00:46:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:40,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:40,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:40,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:40,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:40,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369569850] [2023-12-22 00:46:40,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369569850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:40,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:40,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:40,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417888974] [2023-12-22 00:46:40,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:40,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:40,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:40,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:40,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:40,381 INFO L87 Difference]: Start difference. First operand 4789 states and 7047 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:40,452 INFO L93 Difference]: Finished difference Result 6401 states and 9305 transitions. [2023-12-22 00:46:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:40,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-22 00:46:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:40,457 INFO L225 Difference]: With dead ends: 6401 [2023-12-22 00:46:40,457 INFO L226 Difference]: Without dead ends: 3183 [2023-12-22 00:46:40,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:40,460 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 36 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3061 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 00:46:40,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3061 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:40,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2023-12-22 00:46:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 3181. [2023-12-22 00:46:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 3179 states have (on average 1.4995281535073923) internal successors, (4767), 3180 states have internal predecessors, (4767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4767 transitions. [2023-12-22 00:46:40,510 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4767 transitions. Word has length 83 [2023-12-22 00:46:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:40,510 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 4767 transitions. [2023-12-22 00:46:40,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4767 transitions. [2023-12-22 00:46:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-22 00:46:40,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:40,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:40,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 00:46:40,714 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 00:46:40,714 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:40,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:40,714 INFO L85 PathProgramCache]: Analyzing trace with hash -70081961, now seen corresponding path program 1 times [2023-12-22 00:46:40,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:40,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83938827] [2023-12-22 00:46:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:40,715 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 00:46:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:40,716 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 00:46:40,749 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 00:46:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:40,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:40,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:41,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:41,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:41,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83938827] [2023-12-22 00:46:41,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83938827] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:41,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:41,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:41,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886178768] [2023-12-22 00:46:41,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:41,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:41,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:41,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:41,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:41,954 INFO L87 Difference]: Start difference. First operand 3181 states and 4767 transitions. Second operand has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:43,027 INFO L93 Difference]: Finished difference Result 7341 states and 10459 transitions. [2023-12-22 00:46:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:46:43,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 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 84 [2023-12-22 00:46:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:43,033 INFO L225 Difference]: With dead ends: 7341 [2023-12-22 00:46:43,033 INFO L226 Difference]: Without dead ends: 5731 [2023-12-22 00:46:43,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:46:43,035 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 3430 mSDsluCounter, 9223 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 10779 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:43,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3430 Valid, 10779 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 00:46:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2023-12-22 00:46:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 4933. [2023-12-22 00:46:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4933 states, 4931 states have (on average 1.4437233826809979) internal successors, (7119), 4932 states have internal predecessors, (7119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 7119 transitions. [2023-12-22 00:46:43,127 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 7119 transitions. Word has length 84 [2023-12-22 00:46:43,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:43,128 INFO L495 AbstractCegarLoop]: Abstraction has 4933 states and 7119 transitions. [2023-12-22 00:46:43,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.0) internal successors, (160), 16 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 7119 transitions. [2023-12-22 00:46:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 00:46:43,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:43,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:43,142 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 00:46:43,332 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 00:46:43,332 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:43,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1065031971, now seen corresponding path program 1 times [2023-12-22 00:46:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:43,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53754017] [2023-12-22 00:46:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:43,333 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 00:46:43,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:43,334 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 00:46:43,355 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 00:46:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:43,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:46:43,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:43,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:46:43,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:43,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53754017] [2023-12-22 00:46:43,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53754017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:46:43,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:46:43,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:46:43,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993410616] [2023-12-22 00:46:43,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:46:43,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:46:43,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:43,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:46:43,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:46:43,477 INFO L87 Difference]: Start difference. First operand 4933 states and 7119 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:43,530 INFO L93 Difference]: Finished difference Result 6617 states and 9401 transitions. [2023-12-22 00:46:43,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:46:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2023-12-22 00:46:43,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:43,534 INFO L225 Difference]: With dead ends: 6617 [2023-12-22 00:46:43,534 INFO L226 Difference]: Without dead ends: 3255 [2023-12-22 00:46:43,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 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 00:46:43,537 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 32 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3046 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 00:46:43,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3046 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:43,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2023-12-22 00:46:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3253. [2023-12-22 00:46:43,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3251 states have (on average 1.4737003998769609) internal successors, (4791), 3252 states have internal predecessors, (4791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4791 transitions. [2023-12-22 00:46:43,613 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4791 transitions. Word has length 86 [2023-12-22 00:46:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:43,613 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 4791 transitions. [2023-12-22 00:46:43,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4791 transitions. [2023-12-22 00:46:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 00:46:43,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:43,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:43,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 00:46:43,817 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 00:46:43,817 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:43,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:43,818 INFO L85 PathProgramCache]: Analyzing trace with hash -786052072, now seen corresponding path program 1 times [2023-12-22 00:46:43,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:43,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139731044] [2023-12-22 00:46:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:43,818 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 00:46:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:43,819 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 00:46:43,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 00:46:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:43,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:46:43,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:44,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:44,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:44,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139731044] [2023-12-22 00:46:44,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139731044] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:44,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:44,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:46:44,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111935236] [2023-12-22 00:46:44,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:44,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:46:44,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:44,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:46:44,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:46:44,826 INFO L87 Difference]: Start difference. First operand 3253 states and 4791 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:45,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:45,794 INFO L93 Difference]: Finished difference Result 6421 states and 8983 transitions. [2023-12-22 00:46:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:46:45,794 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 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 87 [2023-12-22 00:46:45,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:45,799 INFO L225 Difference]: With dead ends: 6421 [2023-12-22 00:46:45,799 INFO L226 Difference]: Without dead ends: 4739 [2023-12-22 00:46:45,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:46:45,801 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 1888 mSDsluCounter, 9213 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 10751 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:45,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 10751 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 00:46:45,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2023-12-22 00:46:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 4469. [2023-12-22 00:46:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 4467 states have (on average 1.4235504813073652) internal successors, (6359), 4468 states have internal predecessors, (6359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:45,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 6359 transitions. [2023-12-22 00:46:45,881 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 6359 transitions. Word has length 87 [2023-12-22 00:46:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:45,881 INFO L495 AbstractCegarLoop]: Abstraction has 4469 states and 6359 transitions. [2023-12-22 00:46:45,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:45,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 6359 transitions. [2023-12-22 00:46:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 00:46:45,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:45,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:45,885 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 (22)] Ended with exit code 0 [2023-12-22 00:46:46,085 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 00:46:46,085 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:46,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash -414806032, now seen corresponding path program 1 times [2023-12-22 00:46:46,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:46,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321137355] [2023-12-22 00:46:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:46,086 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 00:46:46,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:46,087 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 00:46:46,089 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 00:46:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:46,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:46:46,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:46:46,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:46:46,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:46,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321137355] [2023-12-22 00:46:46,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321137355] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:46,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:46,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:46:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949400224] [2023-12-22 00:46:46,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:46,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:46:46,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:46,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:46:46,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:46:46,370 INFO L87 Difference]: Start difference. First operand 4469 states and 6359 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:46,630 INFO L93 Difference]: Finished difference Result 12863 states and 17224 transitions. [2023-12-22 00:46:46,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:46:46,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-22 00:46:46,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:46,641 INFO L225 Difference]: With dead ends: 12863 [2023-12-22 00:46:46,641 INFO L226 Difference]: Without dead ends: 9965 [2023-12-22 00:46:46,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 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 00:46:46,644 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 4457 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:46,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4457 Valid, 3262 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:46:46,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2023-12-22 00:46:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 9921. [2023-12-22 00:46:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9921 states, 9919 states have (on average 1.3014416775884665) internal successors, (12909), 9920 states have internal predecessors, (12909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:46,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9921 states to 9921 states and 12909 transitions. [2023-12-22 00:46:46,888 INFO L78 Accepts]: Start accepts. Automaton has 9921 states and 12909 transitions. Word has length 89 [2023-12-22 00:46:46,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:46,889 INFO L495 AbstractCegarLoop]: Abstraction has 9921 states and 12909 transitions. [2023-12-22 00:46:46,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 9921 states and 12909 transitions. [2023-12-22 00:46:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 00:46:46,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:46,892 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:46,901 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 (23)] Ended with exit code 0 [2023-12-22 00:46:47,094 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 00:46:47,095 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:47,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:47,096 INFO L85 PathProgramCache]: Analyzing trace with hash -388928806, now seen corresponding path program 1 times [2023-12-22 00:46:47,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:47,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146595297] [2023-12-22 00:46:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:47,097 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 00:46:47,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:47,098 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 00:46:47,127 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 00:46:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:47,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:46:47,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:48,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:48,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:48,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146595297] [2023-12-22 00:46:48,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146595297] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:48,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:48,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:46:48,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624913176] [2023-12-22 00:46:48,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:48,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:46:48,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:48,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:46:48,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:46:48,958 INFO L87 Difference]: Start difference. First operand 9921 states and 12909 transitions. Second operand has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:51,090 INFO L93 Difference]: Finished difference Result 15577 states and 20005 transitions. [2023-12-22 00:46:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:46:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-22 00:46:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:51,101 INFO L225 Difference]: With dead ends: 15577 [2023-12-22 00:46:51,101 INFO L226 Difference]: Without dead ends: 10039 [2023-12-22 00:46:51,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:46:51,107 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 22594 mSDsluCounter, 9365 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22594 SdHoareTripleChecker+Valid, 10894 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:51,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22594 Valid, 10894 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:46:51,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10039 states. [2023-12-22 00:46:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 9921. [2023-12-22 00:46:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9921 states, 9919 states have (on average 1.2901502167557213) internal successors, (12797), 9920 states have internal predecessors, (12797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9921 states to 9921 states and 12797 transitions. [2023-12-22 00:46:51,428 INFO L78 Accepts]: Start accepts. Automaton has 9921 states and 12797 transitions. Word has length 136 [2023-12-22 00:46:51,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:51,428 INFO L495 AbstractCegarLoop]: Abstraction has 9921 states and 12797 transitions. [2023-12-22 00:46:51,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.538461538461538) internal successors, (248), 25 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:51,428 INFO L276 IsEmpty]: Start isEmpty. Operand 9921 states and 12797 transitions. [2023-12-22 00:46:51,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 00:46:51,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:51,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:51,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-22 00:46:51,635 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 00:46:51,636 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:51,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:51,636 INFO L85 PathProgramCache]: Analyzing trace with hash -289737001, now seen corresponding path program 1 times [2023-12-22 00:46:51,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:51,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992991368] [2023-12-22 00:46:51,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:51,637 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 00:46:51,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:51,638 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 00:46:51,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 00:46:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:51,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:46:51,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:52,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:53,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:53,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992991368] [2023-12-22 00:46:53,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992991368] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:53,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:53,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:46:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529237146] [2023-12-22 00:46:53,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:53,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:46:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:46:53,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:46:53,587 INFO L87 Difference]: Start difference. First operand 9921 states and 12797 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:46:55,621 INFO L93 Difference]: Finished difference Result 17209 states and 21820 transitions. [2023-12-22 00:46:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-22 00:46:55,622 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-22 00:46:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:46:55,630 INFO L225 Difference]: With dead ends: 17209 [2023-12-22 00:46:55,630 INFO L226 Difference]: Without dead ends: 9923 [2023-12-22 00:46:55,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1489, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:46:55,638 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 13518 mSDsluCounter, 7964 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13518 SdHoareTripleChecker+Valid, 9493 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:46:55,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13518 Valid, 9493 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:46:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9923 states. [2023-12-22 00:46:55,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9923 to 9921. [2023-12-22 00:46:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9921 states, 9919 states have (on average 1.2796652888396007) internal successors, (12693), 9920 states have internal predecessors, (12693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9921 states to 9921 states and 12693 transitions. [2023-12-22 00:46:55,953 INFO L78 Accepts]: Start accepts. Automaton has 9921 states and 12693 transitions. Word has length 137 [2023-12-22 00:46:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:46:55,953 INFO L495 AbstractCegarLoop]: Abstraction has 9921 states and 12693 transitions. [2023-12-22 00:46:55,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 25 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:46:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 9921 states and 12693 transitions. [2023-12-22 00:46:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 00:46:55,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:46:55,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:46:55,968 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 (25)] Ended with exit code 0 [2023-12-22 00:46:56,161 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 00:46:56,162 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:46:56,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:46:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1882744285, now seen corresponding path program 1 times [2023-12-22 00:46:56,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:46:56,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653324381] [2023-12-22 00:46:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:46:56,163 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 00:46:56,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:46:56,164 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 00:46:56,166 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 00:46:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:46:56,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:46:56,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:46:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:56,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:46:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:46:57,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:46:57,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653324381] [2023-12-22 00:46:57,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653324381] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:46:57,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:46:57,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:46:57,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146230919] [2023-12-22 00:46:57,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:46:57,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:46:57,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:46:57,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:46:57,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:46:57,298 INFO L87 Difference]: Start difference. First operand 9921 states and 12693 transitions. Second operand has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:43,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:43,319 INFO L93 Difference]: Finished difference Result 16755 states and 24055 transitions. [2023-12-22 00:48:43,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 00:48:43,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-22 00:48:43,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:43,335 INFO L225 Difference]: With dead ends: 16755 [2023-12-22 00:48:43,335 INFO L226 Difference]: Without dead ends: 15251 [2023-12-22 00:48:43,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 00:48:43,339 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 5939 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 9476 mSolverCounterSat, 2977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 12453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2977 IncrementalHoareTripleChecker+Valid, 9476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:43,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5939 Valid, 778 Invalid, 12453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2977 Valid, 9476 Invalid, 0 Unknown, 0 Unchecked, 105.2s Time] [2023-12-22 00:48:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15251 states. [2023-12-22 00:48:43,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15251 to 14427. [2023-12-22 00:48:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.260103986135182) internal successors, (18177), 14426 states have internal predecessors, (18177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 18177 transitions. [2023-12-22 00:48:43,700 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 18177 transitions. Word has length 137 [2023-12-22 00:48:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:43,700 INFO L495 AbstractCegarLoop]: Abstraction has 14427 states and 18177 transitions. [2023-12-22 00:48:43,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.714285714285715) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:43,701 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 18177 transitions. [2023-12-22 00:48:43,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 00:48:43,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:43,704 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:43,728 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 00:48:43,906 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 00:48:43,907 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:43,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash -796660214, now seen corresponding path program 1 times [2023-12-22 00:48:43,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:43,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222015552] [2023-12-22 00:48:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:48:43,908 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 00:48:43,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:43,909 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 00:48:43,910 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 00:48:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:48:44,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:48:44,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:45,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:48:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:45,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:45,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222015552] [2023-12-22 00:48:45,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222015552] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:48:45,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:48:45,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:48:45,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591915951] [2023-12-22 00:48:45,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:48:45,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:48:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:45,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:48:45,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:48:45,690 INFO L87 Difference]: Start difference. First operand 14427 states and 18177 transitions. Second operand has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:50,862 INFO L93 Difference]: Finished difference Result 43131 states and 53866 transitions. [2023-12-22 00:48:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-22 00:48:50,863 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-22 00:48:50,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:50,901 INFO L225 Difference]: With dead ends: 43131 [2023-12-22 00:48:50,901 INFO L226 Difference]: Without dead ends: 39641 [2023-12-22 00:48:50,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1484, Invalid=7636, Unknown=0, NotChecked=0, Total=9120 [2023-12-22 00:48:50,912 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 14534 mSDsluCounter, 6689 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14534 SdHoareTripleChecker+Valid, 8218 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:50,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14534 Valid, 8218 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-22 00:48:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39641 states. [2023-12-22 00:48:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39641 to 14427. [2023-12-22 00:48:51,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.2562218370883882) internal successors, (18121), 14426 states have internal predecessors, (18121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 18121 transitions. [2023-12-22 00:48:51,507 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 18121 transitions. Word has length 138 [2023-12-22 00:48:51,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:51,508 INFO L495 AbstractCegarLoop]: Abstraction has 14427 states and 18121 transitions. [2023-12-22 00:48:51,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:51,508 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 18121 transitions. [2023-12-22 00:48:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 00:48:51,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:51,511 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:51,535 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 00:48:51,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:51,715 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:51,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1442109241, now seen corresponding path program 1 times [2023-12-22 00:48:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100949581] [2023-12-22 00:48:51,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:48:51,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:48:51,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:51,718 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 00:48:51,719 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 00:48:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:48:51,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:48:51,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:53,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:48:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:53,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:53,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100949581] [2023-12-22 00:48:53,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100949581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:48:53,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:48:53,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:48:53,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666014487] [2023-12-22 00:48:53,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:48:53,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:48:53,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:53,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:48:53,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:48:53,833 INFO L87 Difference]: Start difference. First operand 14427 states and 18121 transitions. Second operand has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:48:56,462 INFO L93 Difference]: Finished difference Result 18379 states and 22957 transitions. [2023-12-22 00:48:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:48:56,463 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 0 states have call successors, (0), 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 139 [2023-12-22 00:48:56,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:48:56,479 INFO L225 Difference]: With dead ends: 18379 [2023-12-22 00:48:56,479 INFO L226 Difference]: Without dead ends: 15033 [2023-12-22 00:48:56,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:48:56,484 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 17970 mSDsluCounter, 9467 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17970 SdHoareTripleChecker+Valid, 10996 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:48:56,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17970 Valid, 10996 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 00:48:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15033 states. [2023-12-22 00:48:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15033 to 14427. [2023-12-22 00:48:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.2523396880415945) internal successors, (18065), 14426 states have internal predecessors, (18065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 18065 transitions. [2023-12-22 00:48:56,986 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 18065 transitions. Word has length 139 [2023-12-22 00:48:56,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:48:56,986 INFO L495 AbstractCegarLoop]: Abstraction has 14427 states and 18065 transitions. [2023-12-22 00:48:56,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.23076923076923) internal successors, (266), 25 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:48:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 18065 transitions. [2023-12-22 00:48:56,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:48:56,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:48:56,989 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:48:56,993 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 00:48:57,193 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 00:48:57,193 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:48:57,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:48:57,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1901012678, now seen corresponding path program 1 times [2023-12-22 00:48:57,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:48:57,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579323700] [2023-12-22 00:48:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:48:57,194 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 00:48:57,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:48:57,195 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 00:48:57,196 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 00:48:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:48:57,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:48:57,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:48:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:58,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:48:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:48:59,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:48:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579323700] [2023-12-22 00:48:59,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579323700] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:48:59,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:48:59,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:48:59,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123086903] [2023-12-22 00:48:59,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:48:59,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:48:59,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:48:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:48:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:48:59,627 INFO L87 Difference]: Start difference. First operand 14427 states and 18065 transitions. Second operand has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:05,117 INFO L93 Difference]: Finished difference Result 20193 states and 24928 transitions. [2023-12-22 00:49:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:49:05,117 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 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 140 [2023-12-22 00:49:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:05,135 INFO L225 Difference]: With dead ends: 20193 [2023-12-22 00:49:05,135 INFO L226 Difference]: Without dead ends: 16311 [2023-12-22 00:49:05,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:49:05,141 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 5075 mSDsluCounter, 20419 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 22038 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:05,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 22038 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-22 00:49:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16311 states. [2023-12-22 00:49:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16311 to 11275. [2023-12-22 00:49:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11275 states, 11273 states have (on average 1.2643484431828262) internal successors, (14253), 11274 states have internal predecessors, (14253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11275 states to 11275 states and 14253 transitions. [2023-12-22 00:49:05,544 INFO L78 Accepts]: Start accepts. Automaton has 11275 states and 14253 transitions. Word has length 140 [2023-12-22 00:49:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:05,545 INFO L495 AbstractCegarLoop]: Abstraction has 11275 states and 14253 transitions. [2023-12-22 00:49:05,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.538461538461538) internal successors, (274), 26 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 11275 states and 14253 transitions. [2023-12-22 00:49:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:49:05,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:05,546 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:05,550 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 (29)] Ended with exit code 0 [2023-12-22 00:49:05,749 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 00:49:05,750 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:05,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1546307106, now seen corresponding path program 1 times [2023-12-22 00:49:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826206645] [2023-12-22 00:49:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:05,751 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 00:49:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:05,752 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 00:49:05,779 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 00:49:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:05,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:49:05,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:07,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:07,979 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:07,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:07,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826206645] [2023-12-22 00:49:07,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826206645] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:07,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:07,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:49:07,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42265023] [2023-12-22 00:49:07,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:07,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:49:07,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:49:07,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:49:07,981 INFO L87 Difference]: Start difference. First operand 11275 states and 14253 transitions. Second operand has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:13,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:13,951 INFO L93 Difference]: Finished difference Result 15527 states and 19362 transitions. [2023-12-22 00:49:13,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:49:13,952 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 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 140 [2023-12-22 00:49:13,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:13,966 INFO L225 Difference]: With dead ends: 15527 [2023-12-22 00:49:13,966 INFO L226 Difference]: Without dead ends: 14377 [2023-12-22 00:49:13,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:49:13,971 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 5111 mSDsluCounter, 23653 mSDsCounter, 0 mSdLazyCounter, 2221 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5111 SdHoareTripleChecker+Valid, 25286 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:13,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5111 Valid, 25286 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2221 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 00:49:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14377 states. [2023-12-22 00:49:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14377 to 12938. [2023-12-22 00:49:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12938 states, 12936 states have (on average 1.255256648113791) internal successors, (16238), 12937 states have internal predecessors, (16238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12938 states to 12938 states and 16238 transitions. [2023-12-22 00:49:14,445 INFO L78 Accepts]: Start accepts. Automaton has 12938 states and 16238 transitions. Word has length 140 [2023-12-22 00:49:14,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:14,445 INFO L495 AbstractCegarLoop]: Abstraction has 12938 states and 16238 transitions. [2023-12-22 00:49:14,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.346153846153847) internal successors, (269), 26 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 12938 states and 16238 transitions. [2023-12-22 00:49:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:49:14,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:14,447 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:14,452 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 00:49:14,650 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 00:49:14,650 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:14,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash 239574970, now seen corresponding path program 1 times [2023-12-22 00:49:14,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066880747] [2023-12-22 00:49:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:14,651 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 00:49:14,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:14,652 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 00:49:14,653 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 00:49:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:14,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:49:14,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:16,484 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:16,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:17,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066880747] [2023-12-22 00:49:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066880747] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:17,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:17,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:49:17,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379521548] [2023-12-22 00:49:17,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:17,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:49:17,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:17,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:49:17,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:49:17,113 INFO L87 Difference]: Start difference. First operand 12938 states and 16238 transitions. Second operand has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:20,176 INFO L93 Difference]: Finished difference Result 19279 states and 23947 transitions. [2023-12-22 00:49:20,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-22 00:49:20,176 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 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 140 [2023-12-22 00:49:20,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:20,191 INFO L225 Difference]: With dead ends: 19279 [2023-12-22 00:49:20,191 INFO L226 Difference]: Without dead ends: 17721 [2023-12-22 00:49:20,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 254 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 00:49:20,195 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 3318 mSDsluCounter, 21792 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 23357 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:20,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3318 Valid, 23357 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-22 00:49:20,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17721 states. [2023-12-22 00:49:20,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17721 to 16805. [2023-12-22 00:49:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16805 states, 16803 states have (on average 1.2416235196095935) internal successors, (20863), 16804 states have internal predecessors, (20863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:20,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 20863 transitions. [2023-12-22 00:49:20,910 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 20863 transitions. Word has length 140 [2023-12-22 00:49:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:20,910 INFO L495 AbstractCegarLoop]: Abstraction has 16805 states and 20863 transitions. [2023-12-22 00:49:20,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:20,910 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 20863 transitions. [2023-12-22 00:49:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:49:20,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:20,912 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:20,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-22 00:49:21,116 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 00:49:21,116 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:21,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash 737575774, now seen corresponding path program 1 times [2023-12-22 00:49:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882501102] [2023-12-22 00:49:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:21,117 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 00:49:21,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:21,118 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 00:49:21,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-22 00:49:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:21,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:49:21,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:22,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:23,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882501102] [2023-12-22 00:49:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882501102] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:23,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:23,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:49:23,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162895507] [2023-12-22 00:49:23,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:23,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:49:23,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:23,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:49:23,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:49:23,235 INFO L87 Difference]: Start difference. First operand 16805 states and 20863 transitions. Second operand has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:30,816 INFO L93 Difference]: Finished difference Result 25809 states and 31742 transitions. [2023-12-22 00:49:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:49:30,817 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-22 00:49:30,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:30,837 INFO L225 Difference]: With dead ends: 25809 [2023-12-22 00:49:30,837 INFO L226 Difference]: Without dead ends: 21439 [2023-12-22 00:49:30,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:49:30,842 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 3495 mSDsluCounter, 27236 mSDsCounter, 0 mSdLazyCounter, 2820 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3495 SdHoareTripleChecker+Valid, 28887 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:30,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3495 Valid, 28887 Invalid, 2839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 2820 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-22 00:49:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21439 states. [2023-12-22 00:49:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21439 to 19168. [2023-12-22 00:49:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19168 states, 19166 states have (on average 1.2307210685589065) internal successors, (23588), 19167 states have internal predecessors, (23588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19168 states to 19168 states and 23588 transitions. [2023-12-22 00:49:31,773 INFO L78 Accepts]: Start accepts. Automaton has 19168 states and 23588 transitions. Word has length 140 [2023-12-22 00:49:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:31,773 INFO L495 AbstractCegarLoop]: Abstraction has 19168 states and 23588 transitions. [2023-12-22 00:49:31,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.961538461538462) internal successors, (259), 26 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:31,774 INFO L276 IsEmpty]: Start isEmpty. Operand 19168 states and 23588 transitions. [2023-12-22 00:49:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-22 00:49:31,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:31,776 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:31,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-22 00:49:31,979 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 00:49:31,979 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:31,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:31,979 INFO L85 PathProgramCache]: Analyzing trace with hash -554154438, now seen corresponding path program 1 times [2023-12-22 00:49:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:31,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143209395] [2023-12-22 00:49:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:31,980 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 00:49:31,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:31,981 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 00:49:31,982 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 00:49:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:32,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:49:32,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:33,517 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:33,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:49:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:34,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:34,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143209395] [2023-12-22 00:49:34,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143209395] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:49:34,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:49:34,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:49:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741983920] [2023-12-22 00:49:34,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:49:34,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:49:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:34,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:49:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:49:34,223 INFO L87 Difference]: Start difference. First operand 19168 states and 23588 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:49:42,035 INFO L93 Difference]: Finished difference Result 44511 states and 53388 transitions. [2023-12-22 00:49:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:49:42,036 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 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 140 [2023-12-22 00:49:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:49:42,072 INFO L225 Difference]: With dead ends: 44511 [2023-12-22 00:49:42,073 INFO L226 Difference]: Without dead ends: 40047 [2023-12-22 00:49:42,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:49:42,080 INFO L413 NwaCegarLoop]: 1668 mSDtfsCounter, 5317 mSDsluCounter, 21017 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 22685 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:49:42,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5317 Valid, 22685 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2512 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 00:49:42,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40047 states. [2023-12-22 00:49:44,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40047 to 30780. [2023-12-22 00:49:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30780 states, 30778 states have (on average 1.2068685424653973) internal successors, (37145), 30779 states have internal predecessors, (37145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30780 states to 30780 states and 37145 transitions. [2023-12-22 00:49:44,085 INFO L78 Accepts]: Start accepts. Automaton has 30780 states and 37145 transitions. Word has length 140 [2023-12-22 00:49:44,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:49:44,086 INFO L495 AbstractCegarLoop]: Abstraction has 30780 states and 37145 transitions. [2023-12-22 00:49:44,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:49:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 30780 states and 37145 transitions. [2023-12-22 00:49:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-22 00:49:44,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:49:44,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:49:44,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 00:49:44,295 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 00:49:44,295 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:49:44,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:49:44,296 INFO L85 PathProgramCache]: Analyzing trace with hash 193181604, now seen corresponding path program 1 times [2023-12-22 00:49:44,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:49:44,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318002585] [2023-12-22 00:49:44,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:49:44,297 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 00:49:44,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:49:44,298 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 00:49:44,299 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 00:49:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:49:44,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:49:44,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:49:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:49:44,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:49:44,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:49:44,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318002585] [2023-12-22 00:49:44,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318002585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:49:44,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:49:44,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:49:44,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863265778] [2023-12-22 00:49:44,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:49:44,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:49:44,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:49:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:49:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:49:44,542 INFO L87 Difference]: Start difference. First operand 30780 states and 37145 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:21,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:21,493 INFO L93 Difference]: Finished difference Result 39794 states and 49832 transitions. [2023-12-22 00:50:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:50:21,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2023-12-22 00:50:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:21,544 INFO L225 Difference]: With dead ends: 39794 [2023-12-22 00:50:21,544 INFO L226 Difference]: Without dead ends: 34535 [2023-12-22 00:50:21,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 00:50:21,552 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 761 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:21,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 479 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 35.1s Time] [2023-12-22 00:50:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34535 states. [2023-12-22 00:50:23,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34535 to 33784. [2023-12-22 00:50:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33784 states, 33782 states have (on average 1.2240246285003848) internal successors, (41350), 33783 states have internal predecessors, (41350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33784 states to 33784 states and 41350 transitions. [2023-12-22 00:50:23,521 INFO L78 Accepts]: Start accepts. Automaton has 33784 states and 41350 transitions. Word has length 175 [2023-12-22 00:50:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:23,522 INFO L495 AbstractCegarLoop]: Abstraction has 33784 states and 41350 transitions. [2023-12-22 00:50:23,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 33784 states and 41350 transitions. [2023-12-22 00:50:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:50:23,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:23,532 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:23,536 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 00:50:23,736 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 00:50:23,736 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:23,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1894073000, now seen corresponding path program 2 times [2023-12-22 00:50:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:23,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944021264] [2023-12-22 00:50:23,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:50:23,737 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 00:50:23,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:23,740 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 00:50:23,741 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 00:50:23,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:50:23,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:50:23,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:50:23,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:25,181 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-22 00:50:25,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:50:25,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:25,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944021264] [2023-12-22 00:50:25,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944021264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:50:25,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:50:25,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:50:25,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475344711] [2023-12-22 00:50:25,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:50:25,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:50:25,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:25,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:50:25,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:25,183 INFO L87 Difference]: Start difference. First operand 33784 states and 41350 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:27,298 INFO L93 Difference]: Finished difference Result 44432 states and 54530 transitions. [2023-12-22 00:50:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:50:27,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 193 [2023-12-22 00:50:27,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:27,393 INFO L225 Difference]: With dead ends: 44432 [2023-12-22 00:50:27,393 INFO L226 Difference]: Without dead ends: 39171 [2023-12-22 00:50:27,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:27,400 INFO L413 NwaCegarLoop]: 1586 mSDtfsCounter, 4749 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4749 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:27,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4749 Valid, 3348 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:50:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39171 states. [2023-12-22 00:50:29,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39171 to 33704. [2023-12-22 00:50:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33704 states, 33702 states have (on average 1.218770399382826) internal successors, (41075), 33703 states have internal predecessors, (41075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:29,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33704 states to 33704 states and 41075 transitions. [2023-12-22 00:50:29,368 INFO L78 Accepts]: Start accepts. Automaton has 33704 states and 41075 transitions. Word has length 193 [2023-12-22 00:50:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:29,368 INFO L495 AbstractCegarLoop]: Abstraction has 33704 states and 41075 transitions. [2023-12-22 00:50:29,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:29,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33704 states and 41075 transitions. [2023-12-22 00:50:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:50:29,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:29,378 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:29,383 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 00:50:29,580 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 00:50:29,581 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:29,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1539367428, now seen corresponding path program 2 times [2023-12-22 00:50:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:29,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641189233] [2023-12-22 00:50:29,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:50:29,582 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 00:50:29,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:29,583 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 00:50:29,614 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 00:50:29,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:50:29,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:50:29,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:50:29,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-12-22 00:50:31,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:50:31,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:31,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641189233] [2023-12-22 00:50:31,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641189233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:50:31,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:50:31,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:50:31,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517347861] [2023-12-22 00:50:31,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:50:31,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:50:31,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:31,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:50:31,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:31,072 INFO L87 Difference]: Start difference. First operand 33704 states and 41075 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:33,254 INFO L93 Difference]: Finished difference Result 42059 states and 51514 transitions. [2023-12-22 00:50:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:50:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 193 [2023-12-22 00:50:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:33,293 INFO L225 Difference]: With dead ends: 42059 [2023-12-22 00:50:33,293 INFO L226 Difference]: Without dead ends: 39769 [2023-12-22 00:50:33,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:33,299 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 3213 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:33,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 3391 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:50:33,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39769 states. [2023-12-22 00:50:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39769 to 35527. [2023-12-22 00:50:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35527 states, 35525 states have (on average 1.2148909218859958) internal successors, (43159), 35526 states have internal predecessors, (43159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:35,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35527 states to 35527 states and 43159 transitions. [2023-12-22 00:50:35,428 INFO L78 Accepts]: Start accepts. Automaton has 35527 states and 43159 transitions. Word has length 193 [2023-12-22 00:50:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:35,428 INFO L495 AbstractCegarLoop]: Abstraction has 35527 states and 43159 transitions. [2023-12-22 00:50:35,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 35527 states and 43159 transitions. [2023-12-22 00:50:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:50:35,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:35,438 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:35,441 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 (36)] Forceful destruction successful, exit code 0 [2023-12-22 00:50:35,641 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 00:50:35,641 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:35,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:35,641 INFO L85 PathProgramCache]: Analyzing trace with hash 246514648, now seen corresponding path program 2 times [2023-12-22 00:50:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199282560] [2023-12-22 00:50:35,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:50:35,642 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 00:50:35,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:35,643 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 00:50:35,645 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 00:50:35,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:50:35,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:50:35,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:50:35,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-22 00:50:37,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:50:37,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:37,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199282560] [2023-12-22 00:50:37,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199282560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:50:37,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:50:37,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:50:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665525817] [2023-12-22 00:50:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:50:37,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:50:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:37,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:50:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:37,563 INFO L87 Difference]: Start difference. First operand 35527 states and 43159 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:39,932 INFO L93 Difference]: Finished difference Result 44223 states and 54016 transitions. [2023-12-22 00:50:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:50:39,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 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 193 [2023-12-22 00:50:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:39,971 INFO L225 Difference]: With dead ends: 44223 [2023-12-22 00:50:39,971 INFO L226 Difference]: Without dead ends: 41103 [2023-12-22 00:50:39,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:39,979 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 4606 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4606 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:39,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4606 Valid, 3419 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:50:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41103 states. [2023-12-22 00:50:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41103 to 37822. [2023-12-22 00:50:42,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37822 states, 37820 states have (on average 1.2096774193548387) internal successors, (45750), 37821 states have internal predecessors, (45750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37822 states to 37822 states and 45750 transitions. [2023-12-22 00:50:42,400 INFO L78 Accepts]: Start accepts. Automaton has 37822 states and 45750 transitions. Word has length 193 [2023-12-22 00:50:42,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:42,401 INFO L495 AbstractCegarLoop]: Abstraction has 37822 states and 45750 transitions. [2023-12-22 00:50:42,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:42,401 INFO L276 IsEmpty]: Start isEmpty. Operand 37822 states and 45750 transitions. [2023-12-22 00:50:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:50:42,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:42,411 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:42,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 00:50:42,614 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 00:50:42,615 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:42,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash 744515452, now seen corresponding path program 2 times [2023-12-22 00:50:42,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:42,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306487879] [2023-12-22 00:50:42,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:50:42,616 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 00:50:42,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:42,617 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 00:50:42,619 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 (38)] Waiting until timeout for monitored process [2023-12-22 00:50:42,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:50:42,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:50:42,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:50:42,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:44,464 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-22 00:50:44,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:50:44,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:44,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306487879] [2023-12-22 00:50:44,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306487879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:50:44,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:50:44,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:50:44,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957722985] [2023-12-22 00:50:44,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:50:44,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:50:44,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:44,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:50:44,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:44,468 INFO L87 Difference]: Start difference. First operand 37822 states and 45750 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:46,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:46,921 INFO L93 Difference]: Finished difference Result 46894 states and 57066 transitions. [2023-12-22 00:50:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:50:46,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 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 193 [2023-12-22 00:50:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:46,961 INFO L225 Difference]: With dead ends: 46894 [2023-12-22 00:50:46,961 INFO L226 Difference]: Without dead ends: 43406 [2023-12-22 00:50:46,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:46,968 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 3129 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:46,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 3434 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 00:50:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43406 states. [2023-12-22 00:50:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43406 to 40783. [2023-12-22 00:50:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40783 states, 40781 states have (on average 1.20521811627964) internal successors, (49150), 40782 states have internal predecessors, (49150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40783 states to 40783 states and 49150 transitions. [2023-12-22 00:50:49,531 INFO L78 Accepts]: Start accepts. Automaton has 40783 states and 49150 transitions. Word has length 193 [2023-12-22 00:50:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:49,531 INFO L495 AbstractCegarLoop]: Abstraction has 40783 states and 49150 transitions. [2023-12-22 00:50:49,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 40783 states and 49150 transitions. [2023-12-22 00:50:49,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-22 00:50:49,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:49,540 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:49,548 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 (38)] Forceful destruction successful, exit code 0 [2023-12-22 00:50:49,743 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 00:50:49,743 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:49,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:49,744 INFO L85 PathProgramCache]: Analyzing trace with hash -547214760, now seen corresponding path program 2 times [2023-12-22 00:50:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:49,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133032029] [2023-12-22 00:50:49,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:50:49,744 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 00:50:49,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:49,745 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 00:50:49,747 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 00:50:49,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:50:49,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:50:49,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:50:49,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:51,501 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-12-22 00:50:51,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:50:51,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:50:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133032029] [2023-12-22 00:50:51,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133032029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:50:51,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:50:51,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-22 00:50:51,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319210201] [2023-12-22 00:50:51,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:50:51,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:50:51,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:50:51,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:50:51,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:51,503 INFO L87 Difference]: Start difference. First operand 40783 states and 49150 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:50:54,047 INFO L93 Difference]: Finished difference Result 48858 states and 59228 transitions. [2023-12-22 00:50:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 00:50:54,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 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 193 [2023-12-22 00:50:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:50:54,088 INFO L225 Difference]: With dead ends: 48858 [2023-12-22 00:50:54,088 INFO L226 Difference]: Without dead ends: 46148 [2023-12-22 00:50:54,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:50:54,096 INFO L413 NwaCegarLoop]: 1591 mSDtfsCounter, 3198 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:50:54,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3198 Valid, 3391 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:50:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46148 states. [2023-12-22 00:50:56,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46148 to 43363. [2023-12-22 00:50:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43363 states, 43361 states have (on average 1.2025091672240031) internal successors, (52142), 43362 states have internal predecessors, (52142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43363 states to 43363 states and 52142 transitions. [2023-12-22 00:50:56,995 INFO L78 Accepts]: Start accepts. Automaton has 43363 states and 52142 transitions. Word has length 193 [2023-12-22 00:50:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:50:56,996 INFO L495 AbstractCegarLoop]: Abstraction has 43363 states and 52142 transitions. [2023-12-22 00:50:56,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:50:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 43363 states and 52142 transitions. [2023-12-22 00:50:57,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:50:57,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:50:57,005 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:50:57,008 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 00:50:57,208 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 00:50:57,208 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:50:57,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:50:57,261 INFO L85 PathProgramCache]: Analyzing trace with hash 807520159, now seen corresponding path program 1 times [2023-12-22 00:50:57,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:50:57,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130398555] [2023-12-22 00:50:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:50:57,262 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 00:50:57,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:50:57,263 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:50:57,264 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 (40)] Waiting until timeout for monitored process [2023-12-22 00:50:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:50:57,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:50:57,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:50:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:50:59,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:01,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:01,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130398555] [2023-12-22 00:51:01,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130398555] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:01,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:01,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:51:01,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266522812] [2023-12-22 00:51:01,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:01,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:51:01,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:01,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:51:01,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:51:01,020 INFO L87 Difference]: Start difference. First operand 43363 states and 52142 transitions. Second operand has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:51:14,936 INFO L93 Difference]: Finished difference Result 54946 states and 65744 transitions. [2023-12-22 00:51:14,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-22 00:51:14,937 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 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 194 [2023-12-22 00:51:14,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:51:14,990 INFO L225 Difference]: With dead ends: 54946 [2023-12-22 00:51:14,991 INFO L226 Difference]: Without dead ends: 50625 [2023-12-22 00:51:15,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-22 00:51:15,002 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 1991 mSDsluCounter, 42373 mSDsCounter, 0 mSdLazyCounter, 5502 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1991 SdHoareTripleChecker+Valid, 44031 SdHoareTripleChecker+Invalid, 5517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:51:15,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1991 Valid, 44031 Invalid, 5517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 5502 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-22 00:51:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50625 states. [2023-12-22 00:51:17,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50625 to 30069. [2023-12-22 00:51:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30069 states, 30067 states have (on average 1.2211727142714603) internal successors, (36717), 30068 states have internal predecessors, (36717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30069 states to 30069 states and 36717 transitions. [2023-12-22 00:51:17,071 INFO L78 Accepts]: Start accepts. Automaton has 30069 states and 36717 transitions. Word has length 194 [2023-12-22 00:51:17,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:51:17,072 INFO L495 AbstractCegarLoop]: Abstraction has 30069 states and 36717 transitions. [2023-12-22 00:51:17,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.444444444444445) internal successors, (376), 36 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:17,072 INFO L276 IsEmpty]: Start isEmpty. Operand 30069 states and 36717 transitions. [2023-12-22 00:51:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:51:17,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:51:17,077 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:51:17,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-22 00:51:17,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:17,280 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:51:17,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:51:17,281 INFO L85 PathProgramCache]: Analyzing trace with hash 335289667, now seen corresponding path program 1 times [2023-12-22 00:51:17,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:51:17,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554751354] [2023-12-22 00:51:17,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:51:17,281 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 00:51:17,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:51:17,282 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:51:17,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 00:51:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:51:17,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:51:17,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:51:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:19,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:20,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:20,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554751354] [2023-12-22 00:51:20,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554751354] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:20,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:20,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:51:20,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331763629] [2023-12-22 00:51:20,768 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:20,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:51:20,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:20,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:51:20,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:51:20,769 INFO L87 Difference]: Start difference. First operand 30069 states and 36717 transitions. Second operand has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:51:41,687 INFO L93 Difference]: Finished difference Result 42925 states and 51838 transitions. [2023-12-22 00:51:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 00:51:41,688 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 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 194 [2023-12-22 00:51:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:51:41,725 INFO L225 Difference]: With dead ends: 42925 [2023-12-22 00:51:41,725 INFO L226 Difference]: Without dead ends: 37333 [2023-12-22 00:51:41,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4426 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 00:51:41,737 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 3869 mSDsluCounter, 38586 mSDsCounter, 0 mSdLazyCounter, 6487 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 40337 SdHoareTripleChecker+Invalid, 6511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:51:41,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3869 Valid, 40337 Invalid, 6511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 6487 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-22 00:51:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37333 states. [2023-12-22 00:51:43,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37333 to 32799. [2023-12-22 00:51:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32799 states, 32797 states have (on average 1.2172454797694912) internal successors, (39922), 32798 states have internal predecessors, (39922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32799 states to 32799 states and 39922 transitions. [2023-12-22 00:51:44,049 INFO L78 Accepts]: Start accepts. Automaton has 32799 states and 39922 transitions. Word has length 194 [2023-12-22 00:51:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:51:44,049 INFO L495 AbstractCegarLoop]: Abstraction has 32799 states and 39922 transitions. [2023-12-22 00:51:44,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.305555555555555) internal successors, (371), 36 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 32799 states and 39922 transitions. [2023-12-22 00:51:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:51:44,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:51:44,054 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:51:44,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-22 00:51:44,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:44,257 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:51:44,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:51:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1406554593, now seen corresponding path program 1 times [2023-12-22 00:51:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:51:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491400505] [2023-12-22 00:51:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:51:44,259 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 00:51:44,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:51:44,262 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:51:44,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 00:51:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:51:44,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:51:44,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:51:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:46,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:51:47,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:47,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491400505] [2023-12-22 00:51:47,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491400505] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:47,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:47,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:51:47,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857486021] [2023-12-22 00:51:47,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:47,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:51:47,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:47,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:51:47,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:51:47,782 INFO L87 Difference]: Start difference. First operand 32799 states and 39922 transitions. Second operand has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:10,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:52:10,608 INFO L93 Difference]: Finished difference Result 45792 states and 55063 transitions. [2023-12-22 00:52:10,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-22 00:52:10,609 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 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 194 [2023-12-22 00:52:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:52:10,644 INFO L225 Difference]: With dead ends: 45792 [2023-12-22 00:52:10,644 INFO L226 Difference]: Without dead ends: 39154 [2023-12-22 00:52:10,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5609 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-22 00:52:10,668 INFO L413 NwaCegarLoop]: 1776 mSDtfsCounter, 3866 mSDsluCounter, 35757 mSDsCounter, 0 mSdLazyCounter, 6696 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 37533 SdHoareTripleChecker+Invalid, 6725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:52:10,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3866 Valid, 37533 Invalid, 6725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 6696 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-22 00:52:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39154 states. [2023-12-22 00:52:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39154 to 33277. [2023-12-22 00:52:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33277 states, 33275 states have (on average 1.2140045078888053) internal successors, (40396), 33276 states have internal predecessors, (40396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:13,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33277 states to 33277 states and 40396 transitions. [2023-12-22 00:52:13,124 INFO L78 Accepts]: Start accepts. Automaton has 33277 states and 40396 transitions. Word has length 194 [2023-12-22 00:52:13,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:52:13,124 INFO L495 AbstractCegarLoop]: Abstraction has 33277 states and 40396 transitions. [2023-12-22 00:52:13,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.166666666666666) internal successors, (366), 36 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33277 states and 40396 transitions. [2023-12-22 00:52:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-22 00:52:13,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:52:13,129 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:52:13,133 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 (42)] Ended with exit code 0 [2023-12-22 00:52:13,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:52:13,333 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:52:13,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:52:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1499481795, now seen corresponding path program 1 times [2023-12-22 00:52:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:52:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157076510] [2023-12-22 00:52:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:52:13,334 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 00:52:13,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:52:13,335 INFO L229 MonitoredProcess]: Starting monitored process 43 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 00:52:13,336 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 (43)] Waiting until timeout for monitored process [2023-12-22 00:52:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:52:13,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:52:13,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:52:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:52:15,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:52:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:52:16,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:52:16,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157076510] [2023-12-22 00:52:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157076510] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:52:16,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:52:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:52:16,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627772942] [2023-12-22 00:52:16,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:52:16,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:52:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:52:16,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:52:16,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:52:16,525 INFO L87 Difference]: Start difference. First operand 33277 states and 40396 transitions. Second operand has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:52:43,213 INFO L93 Difference]: Finished difference Result 46117 states and 55366 transitions. [2023-12-22 00:52:43,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:52:43,214 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 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 194 [2023-12-22 00:52:43,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:52:43,254 INFO L225 Difference]: With dead ends: 46117 [2023-12-22 00:52:43,255 INFO L226 Difference]: Without dead ends: 39441 [2023-12-22 00:52:43,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6979 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:52:43,272 INFO L413 NwaCegarLoop]: 1793 mSDtfsCounter, 2223 mSDsluCounter, 44528 mSDsCounter, 0 mSdLazyCounter, 8937 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 46321 SdHoareTripleChecker+Invalid, 8962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 8937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-22 00:52:43,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 46321 Invalid, 8962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 8937 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-22 00:52:43,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39441 states. [2023-12-22 00:52:45,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39441 to 32839. [2023-12-22 00:52:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32839 states, 32837 states have (on average 1.2119255717635593) internal successors, (39796), 32838 states have internal predecessors, (39796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:45,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32839 states to 32839 states and 39796 transitions. [2023-12-22 00:52:45,796 INFO L78 Accepts]: Start accepts. Automaton has 32839 states and 39796 transitions. Word has length 194 [2023-12-22 00:52:45,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:52:45,797 INFO L495 AbstractCegarLoop]: Abstraction has 32839 states and 39796 transitions. [2023-12-22 00:52:45,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.027777777777779) internal successors, (361), 36 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:52:45,797 INFO L276 IsEmpty]: Start isEmpty. Operand 32839 states and 39796 transitions. [2023-12-22 00:52:45,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-22 00:52:45,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:52:45,801 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:52:45,805 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 (43)] Ended with exit code 0 [2023-12-22 00:52:46,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:52:46,005 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:52:46,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:52:46,005 INFO L85 PathProgramCache]: Analyzing trace with hash 717453312, now seen corresponding path program 1 times [2023-12-22 00:52:46,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:52:46,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197721935] [2023-12-22 00:52:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:52:46,006 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 00:52:46,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:52:46,007 INFO L229 MonitoredProcess]: Starting monitored process 44 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 00:52:46,008 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 (44)] Waiting until timeout for monitored process [2023-12-22 00:52:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:52:46,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:52:46,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:52:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:52:48,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:52:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:52:49,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:52:49,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197721935] [2023-12-22 00:52:49,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197721935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:52:49,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:52:49,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:52:49,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904981752] [2023-12-22 00:52:49,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:52:49,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:52:49,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:52:49,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:52:49,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:52:49,528 INFO L87 Difference]: Start difference. First operand 32839 states and 39796 transitions. Second operand has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:53:13,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:53:13,059 INFO L93 Difference]: Finished difference Result 64698 states and 76611 transitions. [2023-12-22 00:53:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 00:53:13,060 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 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 195 [2023-12-22 00:53:13,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:53:13,124 INFO L225 Difference]: With dead ends: 64698 [2023-12-22 00:53:13,125 INFO L226 Difference]: Without dead ends: 60268 [2023-12-22 00:53:13,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 00:53:13,138 INFO L413 NwaCegarLoop]: 1738 mSDtfsCounter, 5242 mSDsluCounter, 36824 mSDsCounter, 0 mSdLazyCounter, 6333 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5242 SdHoareTripleChecker+Valid, 38562 SdHoareTripleChecker+Invalid, 6354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 6333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:53:13,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5242 Valid, 38562 Invalid, 6354 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 6333 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-22 00:53:13,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60268 states. [2023-12-22 00:53:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60268 to 55197. [2023-12-22 00:53:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55197 states, 55195 states have (on average 1.1885496874716912) internal successors, (65602), 55196 states have internal predecessors, (65602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:53:18,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55197 states to 55197 states and 65602 transitions. [2023-12-22 00:53:18,159 INFO L78 Accepts]: Start accepts. Automaton has 55197 states and 65602 transitions. Word has length 195 [2023-12-22 00:53:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:53:18,159 INFO L495 AbstractCegarLoop]: Abstraction has 55197 states and 65602 transitions. [2023-12-22 00:53:18,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.61111111111111) internal successors, (382), 36 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:53:18,159 INFO L276 IsEmpty]: Start isEmpty. Operand 55197 states and 65602 transitions. [2023-12-22 00:53:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 00:53:18,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:53:18,185 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:53:18,199 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 (44)] Forceful destruction successful, exit code 0 [2023-12-22 00:53:18,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:53:18,389 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:53:18,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:53:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash -541582260, now seen corresponding path program 1 times [2023-12-22 00:53:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:53:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298752126] [2023-12-22 00:53:18,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:53:18,390 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 00:53:18,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:53:18,391 INFO L229 MonitoredProcess]: Starting monitored process 45 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 00:53:18,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 00:53:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:53:18,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:53:18,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:53:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:53:19,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:53:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 160 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:53:19,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:53:19,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298752126] [2023-12-22 00:53:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298752126] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:53:19,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:53:19,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:53:19,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589056374] [2023-12-22 00:53:19,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:53:19,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 00:53:19,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:53:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 00:53:19,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:53:19,948 INFO L87 Difference]: Start difference. First operand 55197 states and 65602 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:55:05,695 INFO L93 Difference]: Finished difference Result 73332 states and 90994 transitions. [2023-12-22 00:55:05,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 00:55:05,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-12-22 00:55:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:55:05,758 INFO L225 Difference]: With dead ends: 73332 [2023-12-22 00:55:05,758 INFO L226 Difference]: Without dead ends: 61956 [2023-12-22 00:55:05,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 00:55:05,767 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 6560 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 9002 mSolverCounterSat, 2701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6560 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 11703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2701 IncrementalHoareTripleChecker+Valid, 9002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:55:05,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6560 Valid, 459 Invalid, 11703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2701 Valid, 9002 Invalid, 0 Unknown, 0 Unchecked, 100.5s Time] [2023-12-22 00:55:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61956 states. [2023-12-22 00:55:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61956 to 59703. [2023-12-22 00:55:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59703 states, 59701 states have (on average 1.1853737793336796) internal successors, (70768), 59702 states have internal predecessors, (70768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59703 states to 59703 states and 70768 transitions. [2023-12-22 00:55:10,790 INFO L78 Accepts]: Start accepts. Automaton has 59703 states and 70768 transitions. Word has length 246 [2023-12-22 00:55:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:55:10,790 INFO L495 AbstractCegarLoop]: Abstraction has 59703 states and 70768 transitions. [2023-12-22 00:55:10,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:55:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 59703 states and 70768 transitions. [2023-12-22 00:55:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:55:10,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:55:10,808 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:55:10,813 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 (45)] Ended with exit code 0 [2023-12-22 00:55:11,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:55:11,013 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:55:11,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:55:11,013 INFO L85 PathProgramCache]: Analyzing trace with hash 463120701, now seen corresponding path program 2 times [2023-12-22 00:55:11,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:55:11,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181309474] [2023-12-22 00:55:11,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:55:11,014 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 00:55:11,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:55:11,022 INFO L229 MonitoredProcess]: Starting monitored process 46 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 00:55:11,026 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 (46)] Waiting until timeout for monitored process [2023-12-22 00:55:11,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:55:11,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:55:11,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:55:11,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:55:14,895 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:55:14,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:55:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:55:16,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:55:16,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181309474] [2023-12-22 00:55:16,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181309474] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:55:16,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:55:16,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:55:16,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496144775] [2023-12-22 00:55:16,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:55:16,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:55:16,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:55:16,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:55:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:55:16,290 INFO L87 Difference]: Start difference. First operand 59703 states and 70768 transitions. Second operand has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:56:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:56:06,013 INFO L93 Difference]: Finished difference Result 72557 states and 85730 transitions. [2023-12-22 00:56:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-12-22 00:56:06,014 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 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 247 [2023-12-22 00:56:06,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:56:06,085 INFO L225 Difference]: With dead ends: 72557 [2023-12-22 00:56:06,085 INFO L226 Difference]: Without dead ends: 67259 [2023-12-22 00:56:06,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13712 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=5081, Invalid=40929, Unknown=0, NotChecked=0, Total=46010 [2023-12-22 00:56:06,098 INFO L413 NwaCegarLoop]: 1728 mSDtfsCounter, 3131 mSDsluCounter, 42984 mSDsCounter, 0 mSdLazyCounter, 11995 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 44712 SdHoareTripleChecker+Invalid, 12029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 11995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:56:06,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3131 Valid, 44712 Invalid, 12029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 11995 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-12-22 00:56:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67259 states. [2023-12-22 00:56:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67259 to 42487. [2023-12-22 00:56:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42487 states, 42485 states have (on average 1.1970107096622338) internal successors, (50855), 42486 states have internal predecessors, (50855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:56:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42487 states to 42487 states and 50855 transitions. [2023-12-22 00:56:10,090 INFO L78 Accepts]: Start accepts. Automaton has 42487 states and 50855 transitions. Word has length 247 [2023-12-22 00:56:10,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:56:10,090 INFO L495 AbstractCegarLoop]: Abstraction has 42487 states and 50855 transitions. [2023-12-22 00:56:10,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.478260869565217) internal successors, (482), 46 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:56:10,090 INFO L276 IsEmpty]: Start isEmpty. Operand 42487 states and 50855 transitions. [2023-12-22 00:56:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:56:10,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:56:10,104 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:56:10,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 00:56:10,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:56:10,308 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:56:10,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:56:10,309 INFO L85 PathProgramCache]: Analyzing trace with hash -9109791, now seen corresponding path program 2 times [2023-12-22 00:56:10,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:56:10,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282290845] [2023-12-22 00:56:10,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:56:10,309 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 00:56:10,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:56:10,311 INFO L229 MonitoredProcess]: Starting monitored process 47 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 00:56:10,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 00:56:10,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:56:10,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:56:10,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:56:10,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:56:14,343 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 77 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:56:14,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:56:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 77 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:56:16,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:56:16,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282290845] [2023-12-22 00:56:16,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282290845] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:56:16,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:56:16,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:56:16,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983223872] [2023-12-22 00:56:16,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:56:16,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:56:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:56:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:56:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:56:16,351 INFO L87 Difference]: Start difference. First operand 42487 states and 50855 transitions. Second operand has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:57:18,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:57:18,236 INFO L93 Difference]: Finished difference Result 56536 states and 67270 transitions. [2023-12-22 00:57:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-22 00:57:18,237 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 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 247 [2023-12-22 00:57:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:57:18,288 INFO L225 Difference]: With dead ends: 56536 [2023-12-22 00:57:18,289 INFO L226 Difference]: Without dead ends: 50592 [2023-12-22 00:57:18,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16805 ImplicationChecksByTransitivity, 36.9s TimeCoverageRelationStatistics Valid=5842, Invalid=48214, Unknown=0, NotChecked=0, Total=54056 [2023-12-22 00:57:18,301 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 4246 mSDsluCounter, 53881 mSDsCounter, 0 mSdLazyCounter, 16190 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4246 SdHoareTripleChecker+Valid, 55643 SdHoareTripleChecker+Invalid, 16228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 16190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:57:18,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4246 Valid, 55643 Invalid, 16228 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [38 Valid, 16190 Invalid, 0 Unknown, 0 Unchecked, 22.2s Time] [2023-12-22 00:57:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50592 states. [2023-12-22 00:57:22,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50592 to 44722. [2023-12-22 00:57:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44722 states, 44720 states have (on average 1.1963774597495527) internal successors, (53502), 44721 states have internal predecessors, (53502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:57:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44722 states to 44722 states and 53502 transitions. [2023-12-22 00:57:22,376 INFO L78 Accepts]: Start accepts. Automaton has 44722 states and 53502 transitions. Word has length 247 [2023-12-22 00:57:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:57:22,380 INFO L495 AbstractCegarLoop]: Abstraction has 44722 states and 53502 transitions. [2023-12-22 00:57:22,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.369565217391305) internal successors, (477), 46 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:57:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 44722 states and 53502 transitions. [2023-12-22 00:57:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:57:22,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:57:22,394 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:57:22,398 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 (47)] Ended with exit code 0 [2023-12-22 00:57:22,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:57:22,598 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:57:22,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:57:22,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1750954051, now seen corresponding path program 2 times [2023-12-22 00:57:22,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:57:22,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231023637] [2023-12-22 00:57:22,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:57:22,599 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 00:57:22,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:57:22,600 INFO L229 MonitoredProcess]: Starting monitored process 48 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 00:57:22,601 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 (48)] Waiting until timeout for monitored process [2023-12-22 00:57:22,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:57:22,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:57:22,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:57:22,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:57:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 100 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:57:26,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:57:28,318 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 100 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:57:28,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:57:28,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231023637] [2023-12-22 00:57:28,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231023637] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:57:28,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:57:28,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:57:28,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271366827] [2023-12-22 00:57:28,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:57:28,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:57:28,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:57:28,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:57:28,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:57:28,320 INFO L87 Difference]: Start difference. First operand 44722 states and 53502 transitions. Second operand has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:58:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:58:31,697 INFO L93 Difference]: Finished difference Result 58585 states and 69590 transitions. [2023-12-22 00:58:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2023-12-22 00:58:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 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 247 [2023-12-22 00:58:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:58:31,755 INFO L225 Difference]: With dead ends: 58585 [2023-12-22 00:58:31,755 INFO L226 Difference]: Without dead ends: 51822 [2023-12-22 00:58:31,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19754 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=6647, Invalid=55105, Unknown=0, NotChecked=0, Total=61752 [2023-12-22 00:58:31,769 INFO L413 NwaCegarLoop]: 1795 mSDtfsCounter, 3976 mSDsluCounter, 49191 mSDsCounter, 0 mSdLazyCounter, 15283 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 50986 SdHoareTripleChecker+Invalid, 15317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 15283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:58:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3976 Valid, 50986 Invalid, 15317 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [34 Valid, 15283 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2023-12-22 00:58:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51822 states. [2023-12-22 00:58:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51822 to 45371. [2023-12-22 00:58:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45371 states, 45369 states have (on average 1.1944940377791002) internal successors, (54193), 45370 states have internal predecessors, (54193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:58:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45371 states to 45371 states and 54193 transitions. [2023-12-22 00:58:35,873 INFO L78 Accepts]: Start accepts. Automaton has 45371 states and 54193 transitions. Word has length 247 [2023-12-22 00:58:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:58:35,873 INFO L495 AbstractCegarLoop]: Abstraction has 45371 states and 54193 transitions. [2023-12-22 00:58:35,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.26086956521739) internal successors, (472), 46 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:58:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 45371 states and 54193 transitions. [2023-12-22 00:58:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-22 00:58:35,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:58:35,886 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:58:35,891 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 (48)] Ended with exit code 0 [2023-12-22 00:58:36,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:58:36,090 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:58:36,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:58:36,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1155082337, now seen corresponding path program 2 times [2023-12-22 00:58:36,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:58:36,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364802231] [2023-12-22 00:58:36,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:58:36,091 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 00:58:36,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:58:36,093 INFO L229 MonitoredProcess]: Starting monitored process 49 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 00:58:36,094 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 (49)] Waiting until timeout for monitored process [2023-12-22 00:58:36,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:58:36,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:58:36,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-22 00:58:36,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:58:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:58:39,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:58:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:58:41,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:58:41,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364802231] [2023-12-22 00:58:41,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364802231] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:58:41,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:58:41,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-22 00:58:41,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849608798] [2023-12-22 00:58:41,132 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:58:41,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-22 00:58:41,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:58:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-22 00:58:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-22 00:58:41,134 INFO L87 Difference]: Start difference. First operand 45371 states and 54193 transitions. Second operand has 46 states, 46 states have (on average 10.152173913043478) internal successors, (467), 46 states have internal predecessors, (467), 0 states have call successors, (0), 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 00:59:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2023-12-22 00:59:37,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17682 ImplicationChecksByTransitivity, 35.1s TimeCoverageRelationStatistics Valid=6300, Invalid=50106, Unknown=0, NotChecked=0, Total=56406 [2023-12-22 00:59:37,102 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 2067 mSDsluCounter, 17187 mSDsCounter, 0 mSdLazyCounter, 14147 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 17924 SdHoareTripleChecker+Invalid, 14180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 14147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:59:37,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 17924 Invalid, 14180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 14147 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2023-12-22 00:59:37,103 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:59:37,110 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 (49)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:59:37,110 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 00:59:37,110 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 (49)] Forceful destruction successful, exit code 0 [2023-12-22 00:59:37,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 00:59:37,304 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (45371states) and FLOYD_HOARE automaton (currently 197 states, 46 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 238 known predicates. [2023-12-22 00:59:37,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:59:37,308 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-22 00:59:37,310 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:59:37,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:59:37 BoogieIcfgContainer [2023-12-22 00:59:37,314 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:59:37,315 INFO L158 Benchmark]: Toolchain (without parser) took 857474.89ms. Allocated memory was 287.3MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 233.6MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-22 00:59:37,315 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 160.4MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:59:37,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1465.13ms. Allocated memory is still 287.3MB. Free memory was 233.0MB in the beginning and 163.6MB in the end (delta: 69.4MB). Peak memory consumption was 154.9MB. Max. memory is 8.0GB. [2023-12-22 00:59:37,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.57ms. Allocated memory is still 287.3MB. Free memory was 163.6MB in the beginning and 128.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 00:59:37,315 INFO L158 Benchmark]: Boogie Preprocessor took 333.82ms. Allocated memory was 287.3MB in the beginning and 402.7MB in the end (delta: 115.3MB). Free memory was 127.5MB in the beginning and 319.4MB in the end (delta: -191.9MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-22 00:59:37,315 INFO L158 Benchmark]: RCFGBuilder took 26599.61ms. Allocated memory was 402.7MB in the beginning and 722.5MB in the end (delta: 319.8MB). Free memory was 319.4MB in the beginning and 487.5MB in the end (delta: -168.1MB). Peak memory consumption was 216.2MB. Max. memory is 8.0GB. [2023-12-22 00:59:37,315 INFO L158 Benchmark]: TraceAbstraction took 828928.88ms. Allocated memory was 722.5MB in the beginning and 3.1GB in the end (delta: 2.3GB). Free memory was 486.4MB in the beginning and 1.3GB in the end (delta: -833.0MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-22 00:59:37,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 160.4MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1465.13ms. Allocated memory is still 287.3MB. Free memory was 233.0MB in the beginning and 163.6MB in the end (delta: 69.4MB). Peak memory consumption was 154.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 140.57ms. Allocated memory is still 287.3MB. Free memory was 163.6MB in the beginning and 128.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 333.82ms. Allocated memory was 287.3MB in the beginning and 402.7MB in the end (delta: 115.3MB). Free memory was 127.5MB in the beginning and 319.4MB in the end (delta: -191.9MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * RCFGBuilder took 26599.61ms. Allocated memory was 402.7MB in the beginning and 722.5MB in the end (delta: 319.8MB). Free memory was 319.4MB in the beginning and 487.5MB in the end (delta: -168.1MB). Peak memory consumption was 216.2MB. Max. memory is 8.0GB. * TraceAbstraction took 828928.88ms. Allocated memory was 722.5MB in the beginning and 3.1GB in the end (delta: 2.3GB). Free memory was 486.4MB in the beginning and 1.3GB in the end (delta: -833.0MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 439]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 439). Cancelled while NwaCegarLoop was constructing difference of abstraction (45371states) and FLOYD_HOARE automaton (currently 197 states, 46 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 238 known predicates. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 655). Cancelled while NwaCegarLoop was constructing difference of abstraction (45371states) and FLOYD_HOARE automaton (currently 197 states, 46 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 238 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 836 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 828.9s, OverallIterations: 48, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 686.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190003 SdHoareTripleChecker+Valid, 414.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190003 mSDsluCounter, 661417 SdHoareTripleChecker+Invalid, 356.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 589870 mSDsCounter, 7312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133753 IncrementalHoareTripleChecker+Invalid, 141065 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7312 mSolverCounterUnsat, 71547 mSDtfsCounter, 133753 mSolverCounterSat, 1.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11799 GetRequests, 9487 SyntacticMatches, 0 SemanticMatches, 2311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100077 ImplicationChecksByTransitivity, 226.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59703occurred in iteration=44, InterpolantAutomatonStates: 1632, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 53.7s AutomataMinimizationTime, 47 MinimizatonAttempts, 151190 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 73.8s InterpolantComputationTime, 6168 NumberOfCodeBlocks, 5548 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 10180 ConstructedInterpolants, 2970 QuantifiedInterpolants, 143275 SizeOfPredicates, 265 NumberOfNonLiveVariables, 12565 ConjunctsInSsa, 448 ConjunctsInUnsatCore, 74 InterpolantComputations, 22 PerfectInterpolantSequences, 3970/12006 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