/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/Problem05_label44+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:29:35,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:29:35,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 07:29:35,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:29:35,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:29:35,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:29:35,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:29:35,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:29:35,647 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:29:35,651 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:29:35,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:29:35,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:29:35,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:29:35,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:29:35,653 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:29:35,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:29:35,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:29:35,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:29:35,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:29:35,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:29:35,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:29:35,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:29:35,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:29:35,655 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:29:35,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:29:35,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:29:35,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:29:35,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:29:35,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:29:35,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:29:35,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:29:35,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:29:35,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:29:35,658 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:29:35,658 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:29:35,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:29:35,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:29:35,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:29:35,835 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:29:35,835 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:29:35,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.12.cil-2.c [2023-12-16 07:29:36,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:29:37,505 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:29:37,506 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.12.cil-2.c [2023-12-16 07:29:37,539 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/151d98f77/b503f67b43514da0a3b7616cfeaf90c7/FLAGa698dfc2c [2023-12-16 07:29:37,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/151d98f77/b503f67b43514da0a3b7616cfeaf90c7 [2023-12-16 07:29:37,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:29:37,554 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:29:37,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:29:37,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:29:37,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:29:37,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:29:37" (1/1) ... [2023-12-16 07:29:37,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2b92f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:37, skipping insertion in model container [2023-12-16 07:29:37,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:29:37" (1/1) ... [2023-12-16 07:29:37,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:29:38,892 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/Problem05_label44+token_ring.12.cil-2.c[377340,377353] [2023-12-16 07:29:38,912 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/Problem05_label44+token_ring.12.cil-2.c[383339,383352] [2023-12-16 07:29:39,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:29:39,120 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:29:39,723 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/Problem05_label44+token_ring.12.cil-2.c[377340,377353] [2023-12-16 07:29:39,730 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/Problem05_label44+token_ring.12.cil-2.c[383339,383352] [2023-12-16 07:29:39,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:29:39,808 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:29:39,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39 WrapperNode [2023-12-16 07:29:39,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:29:39,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:29:39,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:29:39,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:29:39,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:39,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,106 INFO L138 Inliner]: procedures = 69, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13191 [2023-12-16 07:29:40,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:29:40,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:29:40,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:29:40,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:29:40,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,278 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,396 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 07:29:40,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:29:40,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:29:40,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:29:40,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:29:40,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (1/1) ... [2023-12-16 07:29:40,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:29:40,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:29:40,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 07:29:40,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 07:29:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:29:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 07:29:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 07:29:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 07:29:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 07:29:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 07:29:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 07:29:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:29:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 07:29:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 07:29:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 07:29:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 07:29:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 07:29:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 07:29:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:29:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:29:40,854 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:29:40,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:29:48,597 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:29:48,680 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:29:48,681 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-16 07:29:48,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:29:48 BoogieIcfgContainer [2023-12-16 07:29:48,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:29:48,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:29:48,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:29:48,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:29:48,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:29:37" (1/3) ... [2023-12-16 07:29:48,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5367db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:29:48, skipping insertion in model container [2023-12-16 07:29:48,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:29:39" (2/3) ... [2023-12-16 07:29:48,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5367db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:29:48, skipping insertion in model container [2023-12-16 07:29:48,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:29:48" (3/3) ... [2023-12-16 07:29:48,690 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.12.cil-2.c [2023-12-16 07:29:48,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:29:48,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 07:29:48,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:29:48,775 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;@483c0b93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:29:48,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 07:29:48,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:29:48,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:48,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:48,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:48,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:48,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:48,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1395407095, now seen corresponding path program 1 times [2023-12-16 07:29:48,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:48,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289390498] [2023-12-16 07:29:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:48,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:48,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:48,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:48,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 07:29:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:49,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:29:49,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:49,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:49,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:49,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289390498] [2023-12-16 07:29:49,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289390498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:49,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:49,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:29:49,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756530577] [2023-12-16 07:29:49,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:49,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:29:49,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:49,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:29:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:49,219 INFO L87 Difference]: Start difference. First operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:49,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:49,401 INFO L93 Difference]: Finished difference Result 4938 states and 9233 transitions. [2023-12-16 07:29:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:29:49,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:49,418 INFO L225 Difference]: With dead ends: 4938 [2023-12-16 07:29:49,418 INFO L226 Difference]: Without dead ends: 2467 [2023-12-16 07:29:49,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:49,427 INFO L413 NwaCegarLoop]: 4479 mSDtfsCounter, 560 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 8438 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:49,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 8438 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:29:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2023-12-16 07:29:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2467. [2023-12-16 07:29:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8368269625976161) internal successors, (4469), 2435 states have internal predecessors, (4469), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:29:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4521 transitions. [2023-12-16 07:29:49,517 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4521 transitions. Word has length 161 [2023-12-16 07:29:49,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:49,518 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4521 transitions. [2023-12-16 07:29:49,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:49,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4521 transitions. [2023-12-16 07:29:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:49,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:49,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:49,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:49,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:49,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:49,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:49,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2006676153, now seen corresponding path program 1 times [2023-12-16 07:29:49,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:49,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376872086] [2023-12-16 07:29:49,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:49,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:49,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:49,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:49,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 07:29:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:49,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:29:49,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:49,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:49,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:49,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376872086] [2023-12-16 07:29:49,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376872086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:49,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:49,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:29:49,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885943515] [2023-12-16 07:29:49,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:49,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:29:49,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:49,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:29:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:49,915 INFO L87 Difference]: Start difference. First operand 2467 states and 4521 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:50,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:50,005 INFO L93 Difference]: Finished difference Result 2800 states and 5061 transitions. [2023-12-16 07:29:50,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:29:50,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:50,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:50,013 INFO L225 Difference]: With dead ends: 2800 [2023-12-16 07:29:50,013 INFO L226 Difference]: Without dead ends: 2467 [2023-12-16 07:29:50,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:29:50,015 INFO L413 NwaCegarLoop]: 4475 mSDtfsCounter, 548 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 8432 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:50,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 8432 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:29:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2023-12-16 07:29:50,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2467. [2023-12-16 07:29:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8364159473900534) internal successors, (4468), 2435 states have internal predecessors, (4468), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 07:29:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4520 transitions. [2023-12-16 07:29:50,059 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4520 transitions. Word has length 161 [2023-12-16 07:29:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:50,060 INFO L495 AbstractCegarLoop]: Abstraction has 2467 states and 4520 transitions. [2023-12-16 07:29:50,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4520 transitions. [2023-12-16 07:29:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:50,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:50,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:50,067 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 [2023-12-16 07:29:50,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:50,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:50,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -965112197, now seen corresponding path program 1 times [2023-12-16 07:29:50,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:50,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783731618] [2023-12-16 07:29:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:50,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:50,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:50,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:50,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 07:29:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:50,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:50,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:50,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:50,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:50,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783731618] [2023-12-16 07:29:50,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783731618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:50,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:50,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:50,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042563558] [2023-12-16 07:29:50,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:50,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:50,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:50,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:50,499 INFO L87 Difference]: Start difference. First operand 2467 states and 4520 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:51,387 INFO L93 Difference]: Finished difference Result 3172 states and 5681 transitions. [2023-12-16 07:29:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:29:51,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:51,397 INFO L225 Difference]: With dead ends: 3172 [2023-12-16 07:29:51,397 INFO L226 Difference]: Without dead ends: 2844 [2023-12-16 07:29:51,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:51,399 INFO L413 NwaCegarLoop]: 4369 mSDtfsCounter, 5049 mSDsluCounter, 8954 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 13323 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:51,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 13323 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:29:51,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2023-12-16 07:29:51,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2815. [2023-12-16 07:29:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8147475481293134) internal successors, (4996), 2756 states have internal predecessors, (4996), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5091 transitions. [2023-12-16 07:29:51,455 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5091 transitions. Word has length 161 [2023-12-16 07:29:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:51,455 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5091 transitions. [2023-12-16 07:29:51,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5091 transitions. [2023-12-16 07:29:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:51,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:51,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:51,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:51,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:51,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:51,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:51,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1451895109, now seen corresponding path program 1 times [2023-12-16 07:29:51,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:51,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131982292] [2023-12-16 07:29:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:51,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:51,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:51,675 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 (5)] Waiting until timeout for monitored process [2023-12-16 07:29:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:51,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:51,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:51,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:51,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:51,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131982292] [2023-12-16 07:29:51,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131982292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:51,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:51,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699406578] [2023-12-16 07:29:51,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:51,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:51,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:51,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:51,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:51,886 INFO L87 Difference]: Start difference. First operand 2815 states and 5091 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:52,360 INFO L93 Difference]: Finished difference Result 3491 states and 6200 transitions. [2023-12-16 07:29:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:52,368 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:52,368 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:52,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:52,371 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 4722 mSDsluCounter, 8466 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 12775 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:52,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 12775 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.812204867417363) internal successors, (4989), 2756 states have internal predecessors, (4989), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5084 transitions. [2023-12-16 07:29:52,425 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5084 transitions. Word has length 161 [2023-12-16 07:29:52,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:52,425 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5084 transitions. [2023-12-16 07:29:52,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:52,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5084 transitions. [2023-12-16 07:29:52,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:52,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:52,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:52,432 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 [2023-12-16 07:29:52,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:52,633 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:52,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1303348859, now seen corresponding path program 1 times [2023-12-16 07:29:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:52,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659715186] [2023-12-16 07:29:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:52,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:52,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:52,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:52,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 07:29:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:52,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:52,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:52,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:52,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:52,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659715186] [2023-12-16 07:29:52,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659715186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:52,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:52,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:52,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900434746] [2023-12-16 07:29:52,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:52,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:52,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:52,845 INFO L87 Difference]: Start difference. First operand 2815 states and 5084 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:53,302 INFO L93 Difference]: Finished difference Result 3491 states and 6186 transitions. [2023-12-16 07:29:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:53,311 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:53,312 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:53,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:53,315 INFO L413 NwaCegarLoop]: 4306 mSDtfsCounter, 4716 mSDsluCounter, 8462 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4736 SdHoareTripleChecker+Valid, 12768 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:53,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4736 Valid, 12768 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:53,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8096621867054123) internal successors, (4982), 2756 states have internal predecessors, (4982), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5077 transitions. [2023-12-16 07:29:53,371 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5077 transitions. Word has length 161 [2023-12-16 07:29:53,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:53,372 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5077 transitions. [2023-12-16 07:29:53,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:53,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5077 transitions. [2023-12-16 07:29:53,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:53,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:53,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:53,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:53,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:53,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:53,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:53,579 INFO L85 PathProgramCache]: Analyzing trace with hash -832534343, now seen corresponding path program 1 times [2023-12-16 07:29:53,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:53,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802799275] [2023-12-16 07:29:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:53,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:53,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:53,605 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:53,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 07:29:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:53,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:53,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:53,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:53,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:53,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802799275] [2023-12-16 07:29:53,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802799275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:53,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:53,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972672998] [2023-12-16 07:29:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:53,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:53,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:53,815 INFO L87 Difference]: Start difference. First operand 2815 states and 5077 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:54,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:54,261 INFO L93 Difference]: Finished difference Result 3491 states and 6172 transitions. [2023-12-16 07:29:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:54,272 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:54,272 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:54,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:54,276 INFO L413 NwaCegarLoop]: 4303 mSDtfsCounter, 4710 mSDsluCounter, 8458 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4730 SdHoareTripleChecker+Valid, 12761 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:54,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4730 Valid, 12761 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:54,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8071195059934617) internal successors, (4975), 2756 states have internal predecessors, (4975), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5070 transitions. [2023-12-16 07:29:54,348 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5070 transitions. Word has length 161 [2023-12-16 07:29:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:54,348 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5070 transitions. [2023-12-16 07:29:54,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5070 transitions. [2023-12-16 07:29:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:54,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:54,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:54,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 07:29:54,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:54,558 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:54,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:54,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2134693767, now seen corresponding path program 1 times [2023-12-16 07:29:54,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:54,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091165472] [2023-12-16 07:29:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:54,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:54,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:54,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:54,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 07:29:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:54,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:54,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:54,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:54,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:54,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091165472] [2023-12-16 07:29:54,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091165472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:54,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:54,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:54,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194488251] [2023-12-16 07:29:54,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:54,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:54,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:54,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:54,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:54,805 INFO L87 Difference]: Start difference. First operand 2815 states and 5070 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:55,320 INFO L93 Difference]: Finished difference Result 3491 states and 6158 transitions. [2023-12-16 07:29:55,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:55,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:55,329 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:55,329 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:55,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:55,332 INFO L413 NwaCegarLoop]: 4300 mSDtfsCounter, 4703 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4723 SdHoareTripleChecker+Valid, 12754 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:55,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4723 Valid, 12754 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:55,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.804576825281511) internal successors, (4968), 2756 states have internal predecessors, (4968), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5063 transitions. [2023-12-16 07:29:55,389 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5063 transitions. Word has length 161 [2023-12-16 07:29:55,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:55,389 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5063 transitions. [2023-12-16 07:29:55,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5063 transitions. [2023-12-16 07:29:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:55,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:55,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:55,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:55,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:55,598 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:55,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1765099463, now seen corresponding path program 1 times [2023-12-16 07:29:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:55,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184582209] [2023-12-16 07:29:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:55,599 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 [2023-12-16 07:29:55,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:55,617 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:55,664 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 (9)] Waiting until timeout for monitored process [2023-12-16 07:29:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:55,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:55,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:55,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:55,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:55,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184582209] [2023-12-16 07:29:55,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184582209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:55,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:55,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:55,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19012364] [2023-12-16 07:29:55,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:55,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:55,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:55,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:55,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:55,965 INFO L87 Difference]: Start difference. First operand 2815 states and 5063 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:56,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:56,502 INFO L93 Difference]: Finished difference Result 3491 states and 6144 transitions. [2023-12-16 07:29:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:56,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:56,525 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:56,536 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:56,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:56,540 INFO L413 NwaCegarLoop]: 4297 mSDtfsCounter, 4697 mSDsluCounter, 8450 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 12747 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:56,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4717 Valid, 12747 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:29:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:56,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8020341445695605) internal successors, (4961), 2756 states have internal predecessors, (4961), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5056 transitions. [2023-12-16 07:29:56,663 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5056 transitions. Word has length 161 [2023-12-16 07:29:56,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:56,664 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5056 transitions. [2023-12-16 07:29:56,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5056 transitions. [2023-12-16 07:29:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:56,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:56,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:56,681 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 [2023-12-16 07:29:56,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:56,877 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:56,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1571958905, now seen corresponding path program 1 times [2023-12-16 07:29:56,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:56,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341395958] [2023-12-16 07:29:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:56,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:56,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:56,880 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:56,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 07:29:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:57,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:57,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:57,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:57,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:57,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341395958] [2023-12-16 07:29:57,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341395958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:57,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:57,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:57,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461829405] [2023-12-16 07:29:57,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:57,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:57,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:57,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:57,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:57,154 INFO L87 Difference]: Start difference. First operand 2815 states and 5056 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:57,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:57,585 INFO L93 Difference]: Finished difference Result 3491 states and 6130 transitions. [2023-12-16 07:29:57,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:57,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:57,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:57,594 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:57,594 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:57,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:57,597 INFO L413 NwaCegarLoop]: 4294 mSDtfsCounter, 4691 mSDsluCounter, 8446 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 12740 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:57,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 12740 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:29:57,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.7994914638576098) internal successors, (4954), 2756 states have internal predecessors, (4954), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5049 transitions. [2023-12-16 07:29:57,657 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5049 transitions. Word has length 161 [2023-12-16 07:29:57,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:57,657 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5049 transitions. [2023-12-16 07:29:57,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:57,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5049 transitions. [2023-12-16 07:29:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:57,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:57,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:57,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:57,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:57,864 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:57,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1541058617, now seen corresponding path program 1 times [2023-12-16 07:29:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466369162] [2023-12-16 07:29:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:57,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:57,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:57,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:57,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 07:29:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:58,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:58,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:58,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:58,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:58,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466369162] [2023-12-16 07:29:58,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466369162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:58,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:58,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:58,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815260853] [2023-12-16 07:29:58,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:58,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:58,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:58,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:58,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:58,088 INFO L87 Difference]: Start difference. First operand 2815 states and 5049 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:58,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:58,500 INFO L93 Difference]: Finished difference Result 3491 states and 6116 transitions. [2023-12-16 07:29:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:58,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:58,534 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:58,535 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:58,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:58,539 INFO L413 NwaCegarLoop]: 4291 mSDtfsCounter, 4685 mSDsluCounter, 8442 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 12733 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:58,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4705 Valid, 12733 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:58,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.7969487831456592) internal successors, (4947), 2756 states have internal predecessors, (4947), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5042 transitions. [2023-12-16 07:29:58,659 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5042 transitions. Word has length 161 [2023-12-16 07:29:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:58,659 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5042 transitions. [2023-12-16 07:29:58,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5042 transitions. [2023-12-16 07:29:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:58,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:58,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:58,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:58,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:58,866 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:58,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:58,866 INFO L85 PathProgramCache]: Analyzing trace with hash 985872505, now seen corresponding path program 1 times [2023-12-16 07:29:58,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:58,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548437289] [2023-12-16 07:29:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:58,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:58,868 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:58,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 07:29:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:59,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:59,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:29:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:29:59,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:29:59,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:29:59,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548437289] [2023-12-16 07:29:59,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548437289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:29:59,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:29:59,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:29:59,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949775534] [2023-12-16 07:29:59,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:29:59,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:29:59,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:29:59,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:29:59,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:29:59,073 INFO L87 Difference]: Start difference. First operand 2815 states and 5042 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:29:59,488 INFO L93 Difference]: Finished difference Result 3491 states and 6102 transitions. [2023-12-16 07:29:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:29:59,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:29:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:29:59,505 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:29:59,505 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:29:59,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:29:59,522 INFO L413 NwaCegarLoop]: 4288 mSDtfsCounter, 4679 mSDsluCounter, 8438 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 12726 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:29:59,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 12726 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 07:29:59,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:29:59,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:29:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.7944061024337086) internal successors, (4940), 2756 states have internal predecessors, (4940), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:29:59,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5035 transitions. [2023-12-16 07:29:59,638 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5035 transitions. Word has length 161 [2023-12-16 07:29:59,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:29:59,639 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5035 transitions. [2023-12-16 07:29:59,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:29:59,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5035 transitions. [2023-12-16 07:29:59,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:29:59,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:29:59,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:29:59,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 07:29:59,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:29:59,846 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:29:59,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:29:59,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1802983367, now seen corresponding path program 1 times [2023-12-16 07:29:59,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:29:59,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175912558] [2023-12-16 07:29:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:29:59,847 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 [2023-12-16 07:29:59,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:29:59,848 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:29:59,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 07:29:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:29:59,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:29:59,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:00,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:00,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:00,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175912558] [2023-12-16 07:30:00,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175912558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:00,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:00,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:00,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209195754] [2023-12-16 07:30:00,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:00,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:00,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:00,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:00,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:00,036 INFO L87 Difference]: Start difference. First operand 2815 states and 5035 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:00,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:00,566 INFO L93 Difference]: Finished difference Result 3491 states and 6088 transitions. [2023-12-16 07:30:00,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:00,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:00,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:00,581 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:30:00,581 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:30:00,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:00,583 INFO L413 NwaCegarLoop]: 4285 mSDtfsCounter, 4673 mSDsluCounter, 8434 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 12719 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:00,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4693 Valid, 12719 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:30:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:30:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.7918634217217582) internal successors, (4933), 2756 states have internal predecessors, (4933), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:30:00,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5028 transitions. [2023-12-16 07:30:00,645 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5028 transitions. Word has length 161 [2023-12-16 07:30:00,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:00,646 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5028 transitions. [2023-12-16 07:30:00,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:00,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5028 transitions. [2023-12-16 07:30:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:00,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:00,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:00,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:00,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:00,853 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:00,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1127823241, now seen corresponding path program 1 times [2023-12-16 07:30:00,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656770983] [2023-12-16 07:30:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:00,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:00,855 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:00,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 07:30:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:01,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:01,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:01,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:01,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:01,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656770983] [2023-12-16 07:30:01,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656770983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:01,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:01,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:01,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855521467] [2023-12-16 07:30:01,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:01,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:01,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:01,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:01,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:01,103 INFO L87 Difference]: Start difference. First operand 2815 states and 5028 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:01,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:01,538 INFO L93 Difference]: Finished difference Result 3491 states and 6074 transitions. [2023-12-16 07:30:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:01,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:01,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:01,543 INFO L225 Difference]: With dead ends: 3491 [2023-12-16 07:30:01,544 INFO L226 Difference]: Without dead ends: 2815 [2023-12-16 07:30:01,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:01,546 INFO L413 NwaCegarLoop]: 4282 mSDtfsCounter, 4667 mSDsluCounter, 8430 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4687 SdHoareTripleChecker+Valid, 12712 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:01,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4687 Valid, 12712 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:01,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-12-16 07:30:01,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2815. [2023-12-16 07:30:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.7893207410098075) internal successors, (4926), 2756 states have internal predecessors, (4926), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 07:30:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5021 transitions. [2023-12-16 07:30:01,603 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5021 transitions. Word has length 161 [2023-12-16 07:30:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:01,603 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 5021 transitions. [2023-12-16 07:30:01,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5021 transitions. [2023-12-16 07:30:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:01,605 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:01,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:01,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 07:30:01,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:01,810 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:01,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:01,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1801115593, now seen corresponding path program 1 times [2023-12-16 07:30:01,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:01,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647495687] [2023-12-16 07:30:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:01,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:01,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:01,814 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:01,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 07:30:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:01,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:01,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:02,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:02,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:02,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647495687] [2023-12-16 07:30:02,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647495687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:02,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:02,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:02,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123445540] [2023-12-16 07:30:02,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:02,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:02,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:02,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:02,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:02,024 INFO L87 Difference]: Start difference. First operand 2815 states and 5021 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:02,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:02,574 INFO L93 Difference]: Finished difference Result 3657 states and 6332 transitions. [2023-12-16 07:30:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:02,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:02,581 INFO L225 Difference]: With dead ends: 3657 [2023-12-16 07:30:02,582 INFO L226 Difference]: Without dead ends: 2981 [2023-12-16 07:30:02,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:02,584 INFO L413 NwaCegarLoop]: 4280 mSDtfsCounter, 4774 mSDsluCounter, 8426 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 12706 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:02,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4794 Valid, 12706 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2023-12-16 07:30:02,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2981. [2023-12-16 07:30:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2913 states have (on average 1.7696532784071404) internal successors, (5155), 2916 states have internal predecessors, (5155), 49 states have call successors, (49), 16 states have call predecessors, (49), 17 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 07:30:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 5254 transitions. [2023-12-16 07:30:02,638 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 5254 transitions. Word has length 161 [2023-12-16 07:30:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:02,638 INFO L495 AbstractCegarLoop]: Abstraction has 2981 states and 5254 transitions. [2023-12-16 07:30:02,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 5254 transitions. [2023-12-16 07:30:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:02,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:02,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:02,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:02,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:02,844 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:02,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2051051946, now seen corresponding path program 1 times [2023-12-16 07:30:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431973942] [2023-12-16 07:30:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:02,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:02,861 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:02,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 07:30:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:02,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:02,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:03,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:03,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431973942] [2023-12-16 07:30:03,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431973942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:03,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:03,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:03,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632708147] [2023-12-16 07:30:03,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:03,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:03,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:03,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:03,065 INFO L87 Difference]: Start difference. First operand 2981 states and 5254 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:03,667 INFO L93 Difference]: Finished difference Result 3989 states and 6798 transitions. [2023-12-16 07:30:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:03,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:03,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:03,673 INFO L225 Difference]: With dead ends: 3989 [2023-12-16 07:30:03,673 INFO L226 Difference]: Without dead ends: 3147 [2023-12-16 07:30:03,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:03,676 INFO L413 NwaCegarLoop]: 4277 mSDtfsCounter, 4767 mSDsluCounter, 8422 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 12699 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:03,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 12699 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2023-12-16 07:30:03,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3147. [2023-12-16 07:30:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3147 states, 3073 states have (on average 1.750732183534006) internal successors, (5380), 3076 states have internal predecessors, (5380), 51 states have call successors, (51), 20 states have call predecessors, (51), 21 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 07:30:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 5483 transitions. [2023-12-16 07:30:03,734 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 5483 transitions. Word has length 161 [2023-12-16 07:30:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:03,734 INFO L495 AbstractCegarLoop]: Abstraction has 3147 states and 5483 transitions. [2023-12-16 07:30:03,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 5483 transitions. [2023-12-16 07:30:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:03,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:03,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:03,754 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 [2023-12-16 07:30:03,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:03,941 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:03,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:03,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1094506858, now seen corresponding path program 1 times [2023-12-16 07:30:03,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:03,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295848850] [2023-12-16 07:30:03,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:03,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:03,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:03,943 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 07:30:03,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 07:30:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:04,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:04,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:04,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:04,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:04,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295848850] [2023-12-16 07:30:04,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295848850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:04,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:04,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185098858] [2023-12-16 07:30:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:04,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:04,137 INFO L87 Difference]: Start difference. First operand 3147 states and 5483 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:04,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:04,807 INFO L93 Difference]: Finished difference Result 4321 states and 7256 transitions. [2023-12-16 07:30:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:04,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:04,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:04,813 INFO L225 Difference]: With dead ends: 4321 [2023-12-16 07:30:04,813 INFO L226 Difference]: Without dead ends: 3313 [2023-12-16 07:30:04,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:04,817 INFO L413 NwaCegarLoop]: 4274 mSDtfsCounter, 4761 mSDsluCounter, 8418 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 12692 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:04,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 12692 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3313 states. [2023-12-16 07:30:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3313 to 3313. [2023-12-16 07:30:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 3233 states have (on average 1.732446643983916) internal successors, (5601), 3236 states have internal predecessors, (5601), 53 states have call successors, (53), 24 states have call predecessors, (53), 25 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 07:30:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 5708 transitions. [2023-12-16 07:30:04,910 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 5708 transitions. Word has length 161 [2023-12-16 07:30:04,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:04,910 INFO L495 AbstractCegarLoop]: Abstraction has 3313 states and 5708 transitions. [2023-12-16 07:30:04,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 5708 transitions. [2023-12-16 07:30:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:04,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:04,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:04,919 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 [2023-12-16 07:30:05,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:05,117 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:05,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash 981333877, now seen corresponding path program 1 times [2023-12-16 07:30:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:05,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513936603] [2023-12-16 07:30:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:05,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:05,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:05,133 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) [2023-12-16 07:30:05,138 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 [2023-12-16 07:30:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:05,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:05,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:05,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:05,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:05,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513936603] [2023-12-16 07:30:05,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513936603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:05,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:05,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:05,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763681769] [2023-12-16 07:30:05,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:05,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:05,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:05,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:05,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:05,396 INFO L87 Difference]: Start difference. First operand 3313 states and 5708 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:06,032 INFO L93 Difference]: Finished difference Result 4653 states and 7706 transitions. [2023-12-16 07:30:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:06,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:06,068 INFO L225 Difference]: With dead ends: 4653 [2023-12-16 07:30:06,068 INFO L226 Difference]: Without dead ends: 3479 [2023-12-16 07:30:06,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:06,072 INFO L413 NwaCegarLoop]: 4271 mSDtfsCounter, 4754 mSDsluCounter, 8414 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 12685 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:06,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 12685 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-12-16 07:30:06,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3479. [2023-12-16 07:30:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3393 states have (on average 1.7147067491895078) internal successors, (5818), 3396 states have internal predecessors, (5818), 55 states have call successors, (55), 28 states have call predecessors, (55), 29 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 07:30:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 5929 transitions. [2023-12-16 07:30:06,185 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 5929 transitions. Word has length 161 [2023-12-16 07:30:06,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:06,186 INFO L495 AbstractCegarLoop]: Abstraction has 3479 states and 5929 transitions. [2023-12-16 07:30:06,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 5929 transitions. [2023-12-16 07:30:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:06,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:06,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:06,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 07:30:06,392 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 [2023-12-16 07:30:06,393 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:06,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash -570443978, now seen corresponding path program 1 times [2023-12-16 07:30:06,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:06,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872094244] [2023-12-16 07:30:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:06,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:06,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:06,400 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) [2023-12-16 07:30:06,445 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 [2023-12-16 07:30:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:06,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:06,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:06,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:06,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872094244] [2023-12-16 07:30:06,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872094244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:06,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:06,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502564961] [2023-12-16 07:30:06,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:06,622 INFO L87 Difference]: Start difference. First operand 3479 states and 5929 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:07,236 INFO L93 Difference]: Finished difference Result 4985 states and 8148 transitions. [2023-12-16 07:30:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:07,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:07,243 INFO L225 Difference]: With dead ends: 4985 [2023-12-16 07:30:07,243 INFO L226 Difference]: Without dead ends: 3645 [2023-12-16 07:30:07,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:07,248 INFO L413 NwaCegarLoop]: 4268 mSDtfsCounter, 4747 mSDsluCounter, 8410 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 12678 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:07,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4767 Valid, 12678 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2023-12-16 07:30:07,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 3645. [2023-12-16 07:30:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3645 states, 3553 states have (on average 1.6974387841260907) internal successors, (6031), 3556 states have internal predecessors, (6031), 57 states have call successors, (57), 32 states have call predecessors, (57), 33 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 07:30:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 6146 transitions. [2023-12-16 07:30:07,353 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 6146 transitions. Word has length 161 [2023-12-16 07:30:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:07,353 INFO L495 AbstractCegarLoop]: Abstraction has 3645 states and 6146 transitions. [2023-12-16 07:30:07,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 6146 transitions. [2023-12-16 07:30:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:07,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:07,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:07,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:07,559 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 [2023-12-16 07:30:07,559 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:07,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:07,560 INFO L85 PathProgramCache]: Analyzing trace with hash 353429238, now seen corresponding path program 1 times [2023-12-16 07:30:07,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:07,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182372643] [2023-12-16 07:30:07,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:07,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:07,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:07,561 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) [2023-12-16 07:30:07,603 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 [2023-12-16 07:30:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:07,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:07,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:07,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:07,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:07,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182372643] [2023-12-16 07:30:07,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182372643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:07,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:07,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:07,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527375066] [2023-12-16 07:30:07,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:07,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:07,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:07,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:07,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:07,785 INFO L87 Difference]: Start difference. First operand 3645 states and 6146 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:08,383 INFO L93 Difference]: Finished difference Result 5317 states and 8582 transitions. [2023-12-16 07:30:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:08,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:08,389 INFO L225 Difference]: With dead ends: 5317 [2023-12-16 07:30:08,389 INFO L226 Difference]: Without dead ends: 3811 [2023-12-16 07:30:08,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:08,393 INFO L413 NwaCegarLoop]: 4265 mSDtfsCounter, 4740 mSDsluCounter, 8406 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 12671 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:08,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4760 Valid, 12671 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:08,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2023-12-16 07:30:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3811. [2023-12-16 07:30:08,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3811 states, 3713 states have (on average 1.6805817398330192) internal successors, (6240), 3716 states have internal predecessors, (6240), 59 states have call successors, (59), 36 states have call predecessors, (59), 37 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 07:30:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 6359 transitions. [2023-12-16 07:30:08,504 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 6359 transitions. Word has length 161 [2023-12-16 07:30:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:08,504 INFO L495 AbstractCegarLoop]: Abstraction has 3811 states and 6359 transitions. [2023-12-16 07:30:08,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:08,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 6359 transitions. [2023-12-16 07:30:08,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:08,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:08,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:08,514 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 [2023-12-16 07:30:08,710 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 [2023-12-16 07:30:08,711 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:08,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:08,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1380801013, now seen corresponding path program 1 times [2023-12-16 07:30:08,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:08,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012036027] [2023-12-16 07:30:08,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:08,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:08,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:08,713 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) [2023-12-16 07:30:08,748 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 [2023-12-16 07:30:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:08,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:08,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:08,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:08,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:08,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012036027] [2023-12-16 07:30:08,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012036027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:08,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:08,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931353701] [2023-12-16 07:30:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:08,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:08,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:08,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:08,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:08,907 INFO L87 Difference]: Start difference. First operand 3811 states and 6359 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:09,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:09,568 INFO L93 Difference]: Finished difference Result 5649 states and 9008 transitions. [2023-12-16 07:30:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:09,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:09,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:09,575 INFO L225 Difference]: With dead ends: 5649 [2023-12-16 07:30:09,575 INFO L226 Difference]: Without dead ends: 3977 [2023-12-16 07:30:09,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:09,578 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 4733 mSDsluCounter, 8402 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4753 SdHoareTripleChecker+Valid, 12664 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:09,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4753 Valid, 12664 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2023-12-16 07:30:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3977. [2023-12-16 07:30:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 3873 states have (on average 1.6640846888716756) internal successors, (6445), 3876 states have internal predecessors, (6445), 61 states have call successors, (61), 40 states have call predecessors, (61), 41 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-16 07:30:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 6568 transitions. [2023-12-16 07:30:09,666 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 6568 transitions. Word has length 161 [2023-12-16 07:30:09,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:09,666 INFO L495 AbstractCegarLoop]: Abstraction has 3977 states and 6568 transitions. [2023-12-16 07:30:09,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:09,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 6568 transitions. [2023-12-16 07:30:09,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:09,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:09,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:09,675 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 [2023-12-16 07:30:09,872 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 [2023-12-16 07:30:09,873 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:09,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:09,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1734834613, now seen corresponding path program 1 times [2023-12-16 07:30:09,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:09,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629231889] [2023-12-16 07:30:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:09,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:09,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:09,875 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) [2023-12-16 07:30:09,909 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 [2023-12-16 07:30:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:10,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:10,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:10,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:10,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:10,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629231889] [2023-12-16 07:30:10,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629231889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:10,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:10,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:10,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493487308] [2023-12-16 07:30:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:10,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:10,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:10,078 INFO L87 Difference]: Start difference. First operand 3977 states and 6568 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:10,795 INFO L93 Difference]: Finished difference Result 5981 states and 9426 transitions. [2023-12-16 07:30:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:10,802 INFO L225 Difference]: With dead ends: 5981 [2023-12-16 07:30:10,802 INFO L226 Difference]: Without dead ends: 4143 [2023-12-16 07:30:10,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:10,806 INFO L413 NwaCegarLoop]: 4259 mSDtfsCounter, 4725 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 12657 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:10,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4745 Valid, 12657 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:30:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2023-12-16 07:30:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2023-12-16 07:30:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4033 states have (on average 1.6479047855194644) internal successors, (6646), 4036 states have internal predecessors, (6646), 63 states have call successors, (63), 44 states have call predecessors, (63), 45 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-16 07:30:10,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 6773 transitions. [2023-12-16 07:30:10,898 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 6773 transitions. Word has length 161 [2023-12-16 07:30:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:10,898 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 6773 transitions. [2023-12-16 07:30:10,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 6773 transitions. [2023-12-16 07:30:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:10,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:10,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:10,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:11,104 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 [2023-12-16 07:30:11,105 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:11,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash 671517045, now seen corresponding path program 1 times [2023-12-16 07:30:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951794455] [2023-12-16 07:30:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:11,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:11,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:11,107 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) [2023-12-16 07:30:11,142 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 [2023-12-16 07:30:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:11,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:11,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:11,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:11,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951794455] [2023-12-16 07:30:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951794455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:11,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:11,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529820832] [2023-12-16 07:30:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:11,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:11,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:11,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:11,312 INFO L87 Difference]: Start difference. First operand 4143 states and 6773 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:11,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:11,890 INFO L93 Difference]: Finished difference Result 6313 states and 9836 transitions. [2023-12-16 07:30:11,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:11,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:11,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:11,899 INFO L225 Difference]: With dead ends: 6313 [2023-12-16 07:30:11,899 INFO L226 Difference]: Without dead ends: 4309 [2023-12-16 07:30:11,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:11,904 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 4718 mSDsluCounter, 8394 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 12650 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:11,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 12650 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2023-12-16 07:30:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 4309. [2023-12-16 07:30:11,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4193 states have (on average 1.6320057238254233) internal successors, (6843), 4196 states have internal predecessors, (6843), 65 states have call successors, (65), 48 states have call predecessors, (65), 49 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-16 07:30:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6974 transitions. [2023-12-16 07:30:12,002 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6974 transitions. Word has length 161 [2023-12-16 07:30:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:12,002 INFO L495 AbstractCegarLoop]: Abstraction has 4309 states and 6974 transitions. [2023-12-16 07:30:12,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6974 transitions. [2023-12-16 07:30:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:12,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:12,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:12,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:12,208 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 [2023-12-16 07:30:12,208 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:12,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:12,209 INFO L85 PathProgramCache]: Analyzing trace with hash -370614026, now seen corresponding path program 1 times [2023-12-16 07:30:12,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:12,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377789944] [2023-12-16 07:30:12,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:12,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:12,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:12,212 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) [2023-12-16 07:30:12,217 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 [2023-12-16 07:30:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:12,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:12,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:12,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:12,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:12,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377789944] [2023-12-16 07:30:12,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377789944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:12,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:12,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516784283] [2023-12-16 07:30:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:12,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:12,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:12,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:12,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:12,402 INFO L87 Difference]: Start difference. First operand 4309 states and 6974 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:13,154 INFO L93 Difference]: Finished difference Result 6645 states and 10238 transitions. [2023-12-16 07:30:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:13,162 INFO L225 Difference]: With dead ends: 6645 [2023-12-16 07:30:13,162 INFO L226 Difference]: Without dead ends: 4475 [2023-12-16 07:30:13,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:13,167 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 4711 mSDsluCounter, 8390 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 12643 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:13,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 12643 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 07:30:13,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2023-12-16 07:30:13,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4475. [2023-12-16 07:30:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4475 states, 4353 states have (on average 1.6163565357224903) internal successors, (7036), 4356 states have internal predecessors, (7036), 67 states have call successors, (67), 52 states have call predecessors, (67), 53 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-16 07:30:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 7171 transitions. [2023-12-16 07:30:13,277 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 7171 transitions. Word has length 161 [2023-12-16 07:30:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:13,277 INFO L495 AbstractCegarLoop]: Abstraction has 4475 states and 7171 transitions. [2023-12-16 07:30:13,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 7171 transitions. [2023-12-16 07:30:13,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:13,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:13,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:13,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:13,485 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 [2023-12-16 07:30:13,485 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:13,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1384702134, now seen corresponding path program 1 times [2023-12-16 07:30:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092935666] [2023-12-16 07:30:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:13,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:13,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:13,488 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) [2023-12-16 07:30:13,523 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 (25)] Waiting until timeout for monitored process [2023-12-16 07:30:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:13,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:13,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:13,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:13,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092935666] [2023-12-16 07:30:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092935666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:13,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:13,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:13,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787948854] [2023-12-16 07:30:13,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:13,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:13,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:13,684 INFO L87 Difference]: Start difference. First operand 4475 states and 7171 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:14,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:14,374 INFO L93 Difference]: Finished difference Result 6977 states and 10632 transitions. [2023-12-16 07:30:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:14,394 INFO L225 Difference]: With dead ends: 6977 [2023-12-16 07:30:14,394 INFO L226 Difference]: Without dead ends: 4641 [2023-12-16 07:30:14,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:14,398 INFO L413 NwaCegarLoop]: 4250 mSDtfsCounter, 4704 mSDsluCounter, 8386 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4724 SdHoareTripleChecker+Valid, 12636 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:14,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4724 Valid, 12636 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2023-12-16 07:30:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 4641. [2023-12-16 07:30:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4513 states have (on average 1.6009306448038998) internal successors, (7225), 4516 states have internal predecessors, (7225), 69 states have call successors, (69), 56 states have call predecessors, (69), 57 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-16 07:30:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 7364 transitions. [2023-12-16 07:30:14,500 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 7364 transitions. Word has length 161 [2023-12-16 07:30:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:14,500 INFO L495 AbstractCegarLoop]: Abstraction has 4641 states and 7364 transitions. [2023-12-16 07:30:14,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 7364 transitions. [2023-12-16 07:30:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:14,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:14,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:14,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:14,707 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 [2023-12-16 07:30:14,708 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:14,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1745013385, now seen corresponding path program 1 times [2023-12-16 07:30:14,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:14,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118538421] [2023-12-16 07:30:14,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:14,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:14,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:14,710 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) [2023-12-16 07:30:14,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 07:30:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:14,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:14,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:14,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:14,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118538421] [2023-12-16 07:30:14,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118538421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:14,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:14,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:14,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437002350] [2023-12-16 07:30:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:14,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:14,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:14,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:14,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:14,919 INFO L87 Difference]: Start difference. First operand 4641 states and 7364 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:15,550 INFO L93 Difference]: Finished difference Result 7309 states and 11018 transitions. [2023-12-16 07:30:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:15,557 INFO L225 Difference]: With dead ends: 7309 [2023-12-16 07:30:15,557 INFO L226 Difference]: Without dead ends: 4807 [2023-12-16 07:30:15,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:15,561 INFO L413 NwaCegarLoop]: 4247 mSDtfsCounter, 4697 mSDsluCounter, 8382 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4717 SdHoareTripleChecker+Valid, 12629 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:15,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4717 Valid, 12629 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2023-12-16 07:30:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4807. [2023-12-16 07:30:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4807 states, 4673 states have (on average 1.5857051144874812) internal successors, (7410), 4676 states have internal predecessors, (7410), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 7553 transitions. [2023-12-16 07:30:15,680 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 7553 transitions. Word has length 161 [2023-12-16 07:30:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:15,680 INFO L495 AbstractCegarLoop]: Abstraction has 4807 states and 7553 transitions. [2023-12-16 07:30:15,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 7553 transitions. [2023-12-16 07:30:15,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:15,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:15,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:15,689 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 [2023-12-16 07:30:15,887 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 [2023-12-16 07:30:15,887 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:15,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 754404374, now seen corresponding path program 1 times [2023-12-16 07:30:15,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:15,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651727165] [2023-12-16 07:30:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:15,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:15,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:15,890 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) [2023-12-16 07:30:15,892 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 [2023-12-16 07:30:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:16,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:16,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:16,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:16,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:16,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651727165] [2023-12-16 07:30:16,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651727165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:16,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:16,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:16,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521188838] [2023-12-16 07:30:16,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:16,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:16,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:16,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:16,113 INFO L87 Difference]: Start difference. First operand 4807 states and 7553 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:16,345 INFO L93 Difference]: Finished difference Result 7626 states and 11375 transitions. [2023-12-16 07:30:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:16,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:16,352 INFO L225 Difference]: With dead ends: 7626 [2023-12-16 07:30:16,352 INFO L226 Difference]: Without dead ends: 4959 [2023-12-16 07:30:16,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:16,358 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 110 mSDsluCounter, 8802 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 13211 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:16,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 13211 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:16,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2023-12-16 07:30:16,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 4811. [2023-12-16 07:30:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 4677 states have (on average 1.5800726961727602) internal successors, (7390), 4680 states have internal predecessors, (7390), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 7533 transitions. [2023-12-16 07:30:16,478 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 7533 transitions. Word has length 161 [2023-12-16 07:30:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:16,478 INFO L495 AbstractCegarLoop]: Abstraction has 4811 states and 7533 transitions. [2023-12-16 07:30:16,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 7533 transitions. [2023-12-16 07:30:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:16,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:16,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:16,487 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 [2023-12-16 07:30:16,685 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 [2023-12-16 07:30:16,685 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:16,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:16,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1387456104, now seen corresponding path program 1 times [2023-12-16 07:30:16,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:16,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640906408] [2023-12-16 07:30:16,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:16,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:16,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:16,687 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) [2023-12-16 07:30:16,723 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 [2023-12-16 07:30:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:16,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:16,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:16,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:16,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:16,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640906408] [2023-12-16 07:30:16,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640906408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:16,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:16,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837995745] [2023-12-16 07:30:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:16,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:16,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:16,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:16,835 INFO L87 Difference]: Start difference. First operand 4811 states and 7533 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:17,028 INFO L93 Difference]: Finished difference Result 7622 states and 11319 transitions. [2023-12-16 07:30:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:17,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:17,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:17,037 INFO L225 Difference]: With dead ends: 7622 [2023-12-16 07:30:17,037 INFO L226 Difference]: Without dead ends: 4951 [2023-12-16 07:30:17,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:17,044 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 101 mSDsluCounter, 8803 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 13212 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:17,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 13212 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2023-12-16 07:30:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4815. [2023-12-16 07:30:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4815 states, 4681 states have (on average 1.5744499038666953) internal successors, (7370), 4684 states have internal predecessors, (7370), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4815 states to 4815 states and 7513 transitions. [2023-12-16 07:30:17,293 INFO L78 Accepts]: Start accepts. Automaton has 4815 states and 7513 transitions. Word has length 161 [2023-12-16 07:30:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:17,293 INFO L495 AbstractCegarLoop]: Abstraction has 4815 states and 7513 transitions. [2023-12-16 07:30:17,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4815 states and 7513 transitions. [2023-12-16 07:30:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:17,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:17,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:17,302 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 (28)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:17,500 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 [2023-12-16 07:30:17,500 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:17,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1040802518, now seen corresponding path program 1 times [2023-12-16 07:30:17,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803550162] [2023-12-16 07:30:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:17,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:17,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:17,504 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) [2023-12-16 07:30:17,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 07:30:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:17,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:17,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:17,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:17,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:17,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803550162] [2023-12-16 07:30:17,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803550162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:17,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:17,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:17,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698052141] [2023-12-16 07:30:17,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:17,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:17,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:17,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:17,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:17,643 INFO L87 Difference]: Start difference. First operand 4815 states and 7513 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:17,830 INFO L93 Difference]: Finished difference Result 7618 states and 11263 transitions. [2023-12-16 07:30:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:17,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:17,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:17,838 INFO L225 Difference]: With dead ends: 7618 [2023-12-16 07:30:17,838 INFO L226 Difference]: Without dead ends: 4943 [2023-12-16 07:30:17,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:17,843 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 92 mSDsluCounter, 8804 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 13213 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:17,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 13213 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2023-12-16 07:30:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4819. [2023-12-16 07:30:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4819 states, 4685 states have (on average 1.5688367129135539) internal successors, (7350), 4688 states have internal predecessors, (7350), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 7493 transitions. [2023-12-16 07:30:17,952 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 7493 transitions. Word has length 161 [2023-12-16 07:30:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:17,953 INFO L495 AbstractCegarLoop]: Abstraction has 4819 states and 7493 transitions. [2023-12-16 07:30:17,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 7493 transitions. [2023-12-16 07:30:17,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:17,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:17,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:17,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:18,158 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 [2023-12-16 07:30:18,159 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:18,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:18,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1653093672, now seen corresponding path program 1 times [2023-12-16 07:30:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:18,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338050946] [2023-12-16 07:30:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:18,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:18,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:18,161 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) [2023-12-16 07:30:18,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 07:30:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:18,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:18,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:18,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:18,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:18,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:18,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338050946] [2023-12-16 07:30:18,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338050946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:18,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:18,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:18,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700450579] [2023-12-16 07:30:18,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:18,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:18,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:18,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:18,294 INFO L87 Difference]: Start difference. First operand 4819 states and 7493 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:18,479 INFO L93 Difference]: Finished difference Result 7614 states and 11207 transitions. [2023-12-16 07:30:18,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:18,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:18,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:18,486 INFO L225 Difference]: With dead ends: 7614 [2023-12-16 07:30:18,486 INFO L226 Difference]: Without dead ends: 4935 [2023-12-16 07:30:18,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:18,491 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 83 mSDsluCounter, 8805 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 13214 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:18,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 13214 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2023-12-16 07:30:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4823. [2023-12-16 07:30:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4823 states, 4689 states have (on average 1.563233098741736) internal successors, (7330), 4692 states have internal predecessors, (7330), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 7473 transitions. [2023-12-16 07:30:18,601 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 7473 transitions. Word has length 161 [2023-12-16 07:30:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:18,601 INFO L495 AbstractCegarLoop]: Abstraction has 4823 states and 7473 transitions. [2023-12-16 07:30:18,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 7473 transitions. [2023-12-16 07:30:18,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:18,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:18,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:18,609 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 [2023-12-16 07:30:18,807 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 [2023-12-16 07:30:18,807 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:18,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1681593962, now seen corresponding path program 1 times [2023-12-16 07:30:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:18,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067081415] [2023-12-16 07:30:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:18,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:18,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:18,809 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) [2023-12-16 07:30:18,842 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 [2023-12-16 07:30:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:18,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:18,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:18,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:18,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:18,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067081415] [2023-12-16 07:30:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067081415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:18,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:18,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:18,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362370144] [2023-12-16 07:30:18,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:18,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:18,946 INFO L87 Difference]: Start difference. First operand 4823 states and 7473 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:19,132 INFO L93 Difference]: Finished difference Result 7598 states and 11135 transitions. [2023-12-16 07:30:19,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:19,139 INFO L225 Difference]: With dead ends: 7598 [2023-12-16 07:30:19,139 INFO L226 Difference]: Without dead ends: 4915 [2023-12-16 07:30:19,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:19,143 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 65 mSDsluCounter, 8807 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 13216 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:19,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 13216 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:19,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2023-12-16 07:30:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4827. [2023-12-16 07:30:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4827 states, 4693 states have (on average 1.5576390368634137) internal successors, (7310), 4696 states have internal predecessors, (7310), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4827 states to 4827 states and 7453 transitions. [2023-12-16 07:30:19,253 INFO L78 Accepts]: Start accepts. Automaton has 4827 states and 7453 transitions. Word has length 161 [2023-12-16 07:30:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:19,253 INFO L495 AbstractCegarLoop]: Abstraction has 4827 states and 7453 transitions. [2023-12-16 07:30:19,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4827 states and 7453 transitions. [2023-12-16 07:30:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:19,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:19,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:19,273 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 (31)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:19,459 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 [2023-12-16 07:30:19,460 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:19,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash -114836012, now seen corresponding path program 1 times [2023-12-16 07:30:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:19,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559189427] [2023-12-16 07:30:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:19,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:19,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:19,462 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) [2023-12-16 07:30:19,464 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 [2023-12-16 07:30:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:19,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:19,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:19,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:19,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:19,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:19,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559189427] [2023-12-16 07:30:19,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559189427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:19,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:19,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:19,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008038653] [2023-12-16 07:30:19,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:19,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:19,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:19,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:19,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:19,601 INFO L87 Difference]: Start difference. First operand 4827 states and 7453 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:19,892 INFO L93 Difference]: Finished difference Result 7594 states and 11079 transitions. [2023-12-16 07:30:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:19,899 INFO L225 Difference]: With dead ends: 7594 [2023-12-16 07:30:19,899 INFO L226 Difference]: Without dead ends: 4907 [2023-12-16 07:30:19,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:19,912 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 56 mSDsluCounter, 8808 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 13217 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:19,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 13217 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2023-12-16 07:30:20,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 4831. [2023-12-16 07:30:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4831 states, 4697 states have (on average 1.552054502874175) internal successors, (7290), 4700 states have internal predecessors, (7290), 71 states have call successors, (71), 60 states have call predecessors, (71), 61 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-16 07:30:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 7433 transitions. [2023-12-16 07:30:20,035 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 7433 transitions. Word has length 161 [2023-12-16 07:30:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:20,036 INFO L495 AbstractCegarLoop]: Abstraction has 4831 states and 7433 transitions. [2023-12-16 07:30:20,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 7433 transitions. [2023-12-16 07:30:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:20,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:20,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:20,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:20,243 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 [2023-12-16 07:30:20,243 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:20,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash -87770410, now seen corresponding path program 1 times [2023-12-16 07:30:20,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:20,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797916460] [2023-12-16 07:30:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:20,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:20,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:20,246 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) [2023-12-16 07:30:20,281 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 [2023-12-16 07:30:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:20,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:20,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:20,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:20,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:20,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797916460] [2023-12-16 07:30:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797916460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:20,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:20,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46352533] [2023-12-16 07:30:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:20,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:20,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:20,460 INFO L87 Difference]: Start difference. First operand 4831 states and 7433 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:20,708 INFO L93 Difference]: Finished difference Result 10014 states and 14099 transitions. [2023-12-16 07:30:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:20,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:20,719 INFO L225 Difference]: With dead ends: 10014 [2023-12-16 07:30:20,720 INFO L226 Difference]: Without dead ends: 7323 [2023-12-16 07:30:20,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:20,725 INFO L413 NwaCegarLoop]: 4465 mSDtfsCounter, 4356 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4356 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:20,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4356 Valid, 4879 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7323 states. [2023-12-16 07:30:20,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7323 to 7319. [2023-12-16 07:30:20,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7319 states, 7065 states have (on average 1.4587402689313518) internal successors, (10306), 7069 states have internal predecessors, (10306), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7319 states to 7319 states and 10576 transitions. [2023-12-16 07:30:20,917 INFO L78 Accepts]: Start accepts. Automaton has 7319 states and 10576 transitions. Word has length 161 [2023-12-16 07:30:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:20,917 INFO L495 AbstractCegarLoop]: Abstraction has 7319 states and 10576 transitions. [2023-12-16 07:30:20,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 7319 states and 10576 transitions. [2023-12-16 07:30:20,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:20,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:20,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:20,923 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 [2023-12-16 07:30:21,123 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 [2023-12-16 07:30:21,124 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:21,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:21,124 INFO L85 PathProgramCache]: Analyzing trace with hash 53329111, now seen corresponding path program 1 times [2023-12-16 07:30:21,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:21,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914459135] [2023-12-16 07:30:21,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:21,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:21,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:21,126 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) [2023-12-16 07:30:21,127 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 (34)] Waiting until timeout for monitored process [2023-12-16 07:30:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:21,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:21,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:21,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:21,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:21,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:21,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914459135] [2023-12-16 07:30:21,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914459135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:21,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:21,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:21,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713519078] [2023-12-16 07:30:21,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:21,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:21,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:21,269 INFO L87 Difference]: Start difference. First operand 7319 states and 10576 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:21,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:21,523 INFO L93 Difference]: Finished difference Result 13382 states and 18451 transitions. [2023-12-16 07:30:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:21,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:21,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:21,536 INFO L225 Difference]: With dead ends: 13382 [2023-12-16 07:30:21,536 INFO L226 Difference]: Without dead ends: 8203 [2023-12-16 07:30:21,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:21,544 INFO L413 NwaCegarLoop]: 4412 mSDtfsCounter, 47 mSDsluCounter, 8818 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 13230 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:21,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 13230 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8203 states. [2023-12-16 07:30:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8203 to 7371. [2023-12-16 07:30:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7371 states, 7117 states have (on average 1.4520162990023886) internal successors, (10334), 7121 states have internal predecessors, (10334), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7371 states to 7371 states and 10604 transitions. [2023-12-16 07:30:21,824 INFO L78 Accepts]: Start accepts. Automaton has 7371 states and 10604 transitions. Word has length 161 [2023-12-16 07:30:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:21,824 INFO L495 AbstractCegarLoop]: Abstraction has 7371 states and 10604 transitions. [2023-12-16 07:30:21,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7371 states and 10604 transitions. [2023-12-16 07:30:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:21,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:21,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:21,833 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 [2023-12-16 07:30:22,031 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 [2023-12-16 07:30:22,031 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:22,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash 130229909, now seen corresponding path program 1 times [2023-12-16 07:30:22,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:22,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541070881] [2023-12-16 07:30:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:22,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:22,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:22,034 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) [2023-12-16 07:30:22,042 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 [2023-12-16 07:30:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:22,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:22,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:22,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:22,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:22,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541070881] [2023-12-16 07:30:22,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541070881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:22,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:22,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:22,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432785130] [2023-12-16 07:30:22,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:22,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:22,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:22,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:22,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:22,217 INFO L87 Difference]: Start difference. First operand 7371 states and 10604 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:22,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:22,481 INFO L93 Difference]: Finished difference Result 12658 states and 17398 transitions. [2023-12-16 07:30:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:22,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:22,493 INFO L225 Difference]: With dead ends: 12658 [2023-12-16 07:30:22,493 INFO L226 Difference]: Without dead ends: 7427 [2023-12-16 07:30:22,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:22,503 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 38 mSDsluCounter, 8809 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13218 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:22,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13218 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7427 states. [2023-12-16 07:30:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7427 to 7375. [2023-12-16 07:30:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7121 states have (on average 1.4450217666058138) internal successors, (10290), 7125 states have internal predecessors, (10290), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 10560 transitions. [2023-12-16 07:30:22,701 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 10560 transitions. Word has length 161 [2023-12-16 07:30:22,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:22,701 INFO L495 AbstractCegarLoop]: Abstraction has 7375 states and 10560 transitions. [2023-12-16 07:30:22,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 10560 transitions. [2023-12-16 07:30:22,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:22,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:22,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:22,708 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 [2023-12-16 07:30:22,907 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 [2023-12-16 07:30:22,907 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:22,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:22,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1085923817, now seen corresponding path program 1 times [2023-12-16 07:30:22,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:22,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937727500] [2023-12-16 07:30:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:22,908 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 [2023-12-16 07:30:22,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:22,909 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) [2023-12-16 07:30:22,941 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 [2023-12-16 07:30:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:23,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:23,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:23,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:23,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:23,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937727500] [2023-12-16 07:30:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937727500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450708991] [2023-12-16 07:30:23,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:23,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:23,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:23,045 INFO L87 Difference]: Start difference. First operand 7375 states and 10560 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:23,301 INFO L93 Difference]: Finished difference Result 12698 states and 17352 transitions. [2023-12-16 07:30:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:23,312 INFO L225 Difference]: With dead ends: 12698 [2023-12-16 07:30:23,312 INFO L226 Difference]: Without dead ends: 7463 [2023-12-16 07:30:23,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:23,320 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 29 mSDsluCounter, 8810 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13219 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:23,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13219 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7463 states. [2023-12-16 07:30:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7463 to 7383. [2023-12-16 07:30:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7129 states have (on average 1.4380698555197082) internal successors, (10252), 7133 states have internal predecessors, (10252), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 10522 transitions. [2023-12-16 07:30:23,630 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 10522 transitions. Word has length 161 [2023-12-16 07:30:23,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:23,630 INFO L495 AbstractCegarLoop]: Abstraction has 7383 states and 10522 transitions. [2023-12-16 07:30:23,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 10522 transitions. [2023-12-16 07:30:23,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:23,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:23,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:23,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-16 07:30:23,836 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 [2023-12-16 07:30:23,836 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:23,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:23,836 INFO L85 PathProgramCache]: Analyzing trace with hash -406651563, now seen corresponding path program 1 times [2023-12-16 07:30:23,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:23,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463770816] [2023-12-16 07:30:23,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:23,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:23,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:23,838 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) [2023-12-16 07:30:23,870 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 [2023-12-16 07:30:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:23,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:23,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:23,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:23,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:23,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463770816] [2023-12-16 07:30:23,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463770816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:23,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:23,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:23,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098251490] [2023-12-16 07:30:23,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:23,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:23,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:23,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:23,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:23,977 INFO L87 Difference]: Start difference. First operand 7383 states and 10522 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:24,234 INFO L93 Difference]: Finished difference Result 12690 states and 17244 transitions. [2023-12-16 07:30:24,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:24,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:24,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:24,246 INFO L225 Difference]: With dead ends: 12690 [2023-12-16 07:30:24,246 INFO L226 Difference]: Without dead ends: 7447 [2023-12-16 07:30:24,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:24,255 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 20 mSDsluCounter, 8811 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13220 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:24,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13220 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7447 states. [2023-12-16 07:30:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7447 to 7391. [2023-12-16 07:30:24,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 7137 states have (on average 1.4311335294941852) internal successors, (10214), 7141 states have internal predecessors, (10214), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:24,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 10484 transitions. [2023-12-16 07:30:24,438 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 10484 transitions. Word has length 161 [2023-12-16 07:30:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:24,438 INFO L495 AbstractCegarLoop]: Abstraction has 7391 states and 10484 transitions. [2023-12-16 07:30:24,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 10484 transitions. [2023-12-16 07:30:24,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:24,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:24,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:24,444 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 [2023-12-16 07:30:24,644 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 [2023-12-16 07:30:24,644 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:24,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:24,644 INFO L85 PathProgramCache]: Analyzing trace with hash 854265687, now seen corresponding path program 1 times [2023-12-16 07:30:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:24,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58543248] [2023-12-16 07:30:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:24,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:24,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:24,646 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) [2023-12-16 07:30:24,678 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 [2023-12-16 07:30:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:24,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:24,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:24,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:24,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:24,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58543248] [2023-12-16 07:30:24,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58543248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:24,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:24,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:24,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455490403] [2023-12-16 07:30:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:24,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:24,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:24,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:24,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:24,782 INFO L87 Difference]: Start difference. First operand 7391 states and 10484 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:25,033 INFO L93 Difference]: Finished difference Result 12682 states and 17136 transitions. [2023-12-16 07:30:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:25,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:25,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:25,043 INFO L225 Difference]: With dead ends: 12682 [2023-12-16 07:30:25,043 INFO L226 Difference]: Without dead ends: 7431 [2023-12-16 07:30:25,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:25,050 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 11 mSDsluCounter, 8812 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13221 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:25,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13221 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:25,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7431 states. [2023-12-16 07:30:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7431 to 7399. [2023-12-16 07:30:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7399 states, 7145 states have (on average 1.4242127361791463) internal successors, (10176), 7149 states have internal predecessors, (10176), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7399 states to 7399 states and 10446 transitions. [2023-12-16 07:30:25,312 INFO L78 Accepts]: Start accepts. Automaton has 7399 states and 10446 transitions. Word has length 161 [2023-12-16 07:30:25,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:25,312 INFO L495 AbstractCegarLoop]: Abstraction has 7399 states and 10446 transitions. [2023-12-16 07:30:25,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7399 states and 10446 transitions. [2023-12-16 07:30:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:25,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:25,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:25,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-16 07:30:25,518 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 [2023-12-16 07:30:25,518 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:25,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1902361579, now seen corresponding path program 1 times [2023-12-16 07:30:25,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:25,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465510031] [2023-12-16 07:30:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:25,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:25,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:25,520 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) [2023-12-16 07:30:25,521 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 [2023-12-16 07:30:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:25,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 07:30:25,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:25,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:25,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:25,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465510031] [2023-12-16 07:30:25,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465510031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:25,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:25,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:25,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152519896] [2023-12-16 07:30:25,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:25,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:25,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:25,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:25,665 INFO L87 Difference]: Start difference. First operand 7399 states and 10446 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:25,918 INFO L93 Difference]: Finished difference Result 12674 states and 17028 transitions. [2023-12-16 07:30:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:25,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:25,929 INFO L225 Difference]: With dead ends: 12674 [2023-12-16 07:30:25,929 INFO L226 Difference]: Without dead ends: 7415 [2023-12-16 07:30:25,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:25,936 INFO L413 NwaCegarLoop]: 4409 mSDtfsCounter, 2 mSDsluCounter, 8813 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13222 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:25,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13222 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:25,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2023-12-16 07:30:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 7407. [2023-12-16 07:30:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7407 states, 7153 states have (on average 1.4173074234586887) internal successors, (10138), 7157 states have internal predecessors, (10138), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:26,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7407 states to 7407 states and 10408 transitions. [2023-12-16 07:30:26,124 INFO L78 Accepts]: Start accepts. Automaton has 7407 states and 10408 transitions. Word has length 161 [2023-12-16 07:30:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:26,124 INFO L495 AbstractCegarLoop]: Abstraction has 7407 states and 10408 transitions. [2023-12-16 07:30:26,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:26,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7407 states and 10408 transitions. [2023-12-16 07:30:26,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:26,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:26,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:26,135 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 [2023-12-16 07:30:26,330 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 [2023-12-16 07:30:26,331 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:26,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2039517335, now seen corresponding path program 1 times [2023-12-16 07:30:26,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:26,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306900930] [2023-12-16 07:30:26,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:26,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:26,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:26,333 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) [2023-12-16 07:30:26,336 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 (40)] Waiting until timeout for monitored process [2023-12-16 07:30:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:26,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:26,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:26,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:26,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:26,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306900930] [2023-12-16 07:30:26,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306900930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:26,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:26,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:26,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421232233] [2023-12-16 07:30:26,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:26,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:26,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:26,597 INFO L87 Difference]: Start difference. First operand 7407 states and 10408 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:27,249 INFO L93 Difference]: Finished difference Result 12675 states and 16839 transitions. [2023-12-16 07:30:27,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:27,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:27,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:27,274 INFO L225 Difference]: With dead ends: 12675 [2023-12-16 07:30:27,274 INFO L226 Difference]: Without dead ends: 7407 [2023-12-16 07:30:27,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:27,287 INFO L413 NwaCegarLoop]: 4243 mSDtfsCounter, 4515 mSDsluCounter, 8378 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4534 SdHoareTripleChecker+Valid, 12621 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:27,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4534 Valid, 12621 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:27,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2023-12-16 07:30:27,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 7407. [2023-12-16 07:30:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7407 states, 7153 states have (on average 1.4153502027121487) internal successors, (10124), 7157 states have internal predecessors, (10124), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7407 states to 7407 states and 10394 transitions. [2023-12-16 07:30:27,556 INFO L78 Accepts]: Start accepts. Automaton has 7407 states and 10394 transitions. Word has length 161 [2023-12-16 07:30:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:27,556 INFO L495 AbstractCegarLoop]: Abstraction has 7407 states and 10394 transitions. [2023-12-16 07:30:27,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7407 states and 10394 transitions. [2023-12-16 07:30:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:27,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:27,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:27,585 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 [2023-12-16 07:30:27,783 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 [2023-12-16 07:30:27,783 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:27,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:27,784 INFO L85 PathProgramCache]: Analyzing trace with hash 194150169, now seen corresponding path program 1 times [2023-12-16 07:30:27,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:27,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517420038] [2023-12-16 07:30:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:27,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:27,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:27,785 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) [2023-12-16 07:30:27,786 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 [2023-12-16 07:30:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:27,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:27,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:28,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:28,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517420038] [2023-12-16 07:30:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517420038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:28,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871166679] [2023-12-16 07:30:28,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:28,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:28,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:28,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:28,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:28,110 INFO L87 Difference]: Start difference. First operand 7407 states and 10394 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:28,766 INFO L93 Difference]: Finished difference Result 12675 states and 16811 transitions. [2023-12-16 07:30:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:30:28,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:28,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:28,775 INFO L225 Difference]: With dead ends: 12675 [2023-12-16 07:30:28,775 INFO L226 Difference]: Without dead ends: 7407 [2023-12-16 07:30:28,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 07:30:28,783 INFO L413 NwaCegarLoop]: 4240 mSDtfsCounter, 4502 mSDsluCounter, 8374 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4521 SdHoareTripleChecker+Valid, 12614 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:28,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4521 Valid, 12614 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:28,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2023-12-16 07:30:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 7407. [2023-12-16 07:30:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7407 states, 7153 states have (on average 1.4133929819656088) internal successors, (10110), 7157 states have internal predecessors, (10110), 134 states have call successors, (134), 116 states have call predecessors, (134), 118 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7407 states to 7407 states and 10380 transitions. [2023-12-16 07:30:28,986 INFO L78 Accepts]: Start accepts. Automaton has 7407 states and 10380 transitions. Word has length 161 [2023-12-16 07:30:28,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:28,987 INFO L495 AbstractCegarLoop]: Abstraction has 7407 states and 10380 transitions. [2023-12-16 07:30:28,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7407 states and 10380 transitions. [2023-12-16 07:30:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:28,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:28,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:28,994 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 [2023-12-16 07:30:29,193 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 [2023-12-16 07:30:29,193 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:29,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash 895750043, now seen corresponding path program 1 times [2023-12-16 07:30:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:29,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208623016] [2023-12-16 07:30:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:29,194 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 [2023-12-16 07:30:29,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:29,196 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) [2023-12-16 07:30:29,198 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 [2023-12-16 07:30:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:29,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:30:29,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:29,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:29,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:29,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208623016] [2023-12-16 07:30:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208623016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905790641] [2023-12-16 07:30:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:29,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 07:30:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 07:30:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:29,467 INFO L87 Difference]: Start difference. First operand 7407 states and 10380 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:30,239 INFO L93 Difference]: Finished difference Result 13013 states and 17210 transitions. [2023-12-16 07:30:30,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 07:30:30,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 07:30:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:30,248 INFO L225 Difference]: With dead ends: 13013 [2023-12-16 07:30:30,248 INFO L226 Difference]: Without dead ends: 7745 [2023-12-16 07:30:30,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 07:30:30,253 INFO L413 NwaCegarLoop]: 4239 mSDtfsCounter, 4619 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 12609 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:30,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4638 Valid, 12609 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:30:30,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7745 states. [2023-12-16 07:30:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7745 to 7677. [2023-12-16 07:30:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7677 states, 7419 states have (on average 1.3974929235746056) internal successors, (10368), 7423 states have internal predecessors, (10368), 134 states have call successors, (134), 120 states have call predecessors, (134), 122 states have return successors, (136), 134 states have call predecessors, (136), 134 states have call successors, (136) [2023-12-16 07:30:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7677 states to 7677 states and 10638 transitions. [2023-12-16 07:30:30,451 INFO L78 Accepts]: Start accepts. Automaton has 7677 states and 10638 transitions. Word has length 161 [2023-12-16 07:30:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:30,452 INFO L495 AbstractCegarLoop]: Abstraction has 7677 states and 10638 transitions. [2023-12-16 07:30:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 07:30:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7677 states and 10638 transitions. [2023-12-16 07:30:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 07:30:30,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:30,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:30,457 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 (42)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:30,657 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 [2023-12-16 07:30:30,657 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:30,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash -909688291, now seen corresponding path program 1 times [2023-12-16 07:30:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654990789] [2023-12-16 07:30:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:30,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:30,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:30,659 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) [2023-12-16 07:30:30,661 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 [2023-12-16 07:30:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:30,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:30,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:30:30,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:30,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:30,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654990789] [2023-12-16 07:30:30,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654990789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:30,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:30,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 07:30:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433672998] [2023-12-16 07:30:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:30,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:30,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:30,955 INFO L87 Difference]: Start difference. First operand 7677 states and 10638 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:30:31,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:31,382 INFO L93 Difference]: Finished difference Result 18674 states and 23946 transitions. [2023-12-16 07:30:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:31,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 161 [2023-12-16 07:30:31,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:31,404 INFO L225 Difference]: With dead ends: 18674 [2023-12-16 07:30:31,405 INFO L226 Difference]: Without dead ends: 13137 [2023-12-16 07:30:31,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:31,416 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 4276 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4276 SdHoareTripleChecker+Valid, 4802 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:31,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4276 Valid, 4802 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:31,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13137 states. [2023-12-16 07:30:31,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13137 to 13133. [2023-12-16 07:30:31,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13133 states, 12623 states have (on average 1.3149013705141408) internal successors, (16598), 12633 states have internal predecessors, (16598), 264 states have call successors, (264), 240 states have call predecessors, (264), 244 states have return successors, (268), 260 states have call predecessors, (268), 264 states have call successors, (268) [2023-12-16 07:30:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13133 states to 13133 states and 17130 transitions. [2023-12-16 07:30:31,891 INFO L78 Accepts]: Start accepts. Automaton has 13133 states and 17130 transitions. Word has length 161 [2023-12-16 07:30:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:31,891 INFO L495 AbstractCegarLoop]: Abstraction has 13133 states and 17130 transitions. [2023-12-16 07:30:31,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 07:30:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 13133 states and 17130 transitions. [2023-12-16 07:30:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-16 07:30:31,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:31,898 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:31,902 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 (43)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:32,102 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 [2023-12-16 07:30:32,103 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:32,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1858736192, now seen corresponding path program 1 times [2023-12-16 07:30:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:32,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676715859] [2023-12-16 07:30:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:32,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:32,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:32,105 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) [2023-12-16 07:30:32,138 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 [2023-12-16 07:30:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:32,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:32,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-16 07:30:32,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:32,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:32,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676715859] [2023-12-16 07:30:32,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676715859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:32,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:32,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:32,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805724956] [2023-12-16 07:30:32,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:32,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:32,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:32,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:32,496 INFO L87 Difference]: Start difference. First operand 13133 states and 17130 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:33,624 INFO L93 Difference]: Finished difference Result 34857 states and 43052 transitions. [2023-12-16 07:30:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 259 [2023-12-16 07:30:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:33,672 INFO L225 Difference]: With dead ends: 34857 [2023-12-16 07:30:33,673 INFO L226 Difference]: Without dead ends: 23865 [2023-12-16 07:30:33,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:33,685 INFO L413 NwaCegarLoop]: 4344 mSDtfsCounter, 4624 mSDsluCounter, 4559 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 8903 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:33,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4629 Valid, 8903 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23865 states. [2023-12-16 07:30:34,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23865 to 23863. [2023-12-16 07:30:34,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23863 states, 22865 states have (on average 1.2600043734966104) internal successors, (28810), 22891 states have internal predecessors, (28810), 508 states have call successors, (508), 464 states have call predecessors, (508), 488 states have return successors, (556), 508 states have call predecessors, (556), 508 states have call successors, (556) [2023-12-16 07:30:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23863 states to 23863 states and 29874 transitions. [2023-12-16 07:30:34,527 INFO L78 Accepts]: Start accepts. Automaton has 23863 states and 29874 transitions. Word has length 259 [2023-12-16 07:30:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:34,527 INFO L495 AbstractCegarLoop]: Abstraction has 23863 states and 29874 transitions. [2023-12-16 07:30:34,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 23863 states and 29874 transitions. [2023-12-16 07:30:34,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-16 07:30:34,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:34,537 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:34,544 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 [2023-12-16 07:30:34,742 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 [2023-12-16 07:30:34,743 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:34,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:34,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1606475653, now seen corresponding path program 1 times [2023-12-16 07:30:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:34,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751097796] [2023-12-16 07:30:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:34,744 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 [2023-12-16 07:30:34,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:34,745 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) [2023-12-16 07:30:34,746 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 [2023-12-16 07:30:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:34,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:30:34,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-16 07:30:35,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:35,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:35,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751097796] [2023-12-16 07:30:35,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751097796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:35,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 07:30:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327946515] [2023-12-16 07:30:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:35,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:30:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:35,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:30:35,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:30:35,146 INFO L87 Difference]: Start difference. First operand 23863 states and 29874 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:37,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:37,007 INFO L93 Difference]: Finished difference Result 66293 states and 80398 transitions. [2023-12-16 07:30:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 07:30:37,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 261 [2023-12-16 07:30:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:37,070 INFO L225 Difference]: With dead ends: 66293 [2023-12-16 07:30:37,070 INFO L226 Difference]: Without dead ends: 44571 [2023-12-16 07:30:37,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 07:30:37,093 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 4596 mSDsluCounter, 4682 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4601 SdHoareTripleChecker+Valid, 9172 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:37,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4601 Valid, 9172 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 07:30:37,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44571 states. [2023-12-16 07:30:38,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44571 to 44569. [2023-12-16 07:30:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44569 states, 42624 states have (on average 1.2285566816816818) internal successors, (52366), 42683 states have internal predecessors, (52366), 983 states have call successors, (983), 896 states have call predecessors, (983), 960 states have return successors, (1119), 991 states have call predecessors, (1119), 983 states have call successors, (1119) [2023-12-16 07:30:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44569 states to 44569 states and 54468 transitions. [2023-12-16 07:30:38,806 INFO L78 Accepts]: Start accepts. Automaton has 44569 states and 54468 transitions. Word has length 261 [2023-12-16 07:30:38,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:30:38,807 INFO L495 AbstractCegarLoop]: Abstraction has 44569 states and 54468 transitions. [2023-12-16 07:30:38,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 07:30:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 44569 states and 54468 transitions. [2023-12-16 07:30:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-16 07:30:38,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:30:38,822 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:38,840 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 (45)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:39,027 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 [2023-12-16 07:30:39,027 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:30:39,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:30:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1762717831, now seen corresponding path program 1 times [2023-12-16 07:30:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:30:39,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836036036] [2023-12-16 07:30:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:30:39,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 07:30:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:30:39,030 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) [2023-12-16 07:30:39,048 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 [2023-12-16 07:30:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:30:39,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 07:30:39,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:30:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-16 07:30:39,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:30:39,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:30:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836036036] [2023-12-16 07:30:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836036036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:30:39,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:30:39,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:30:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925474125] [2023-12-16 07:30:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:30:39,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 07:30:39,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:30:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 07:30:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:39,212 INFO L87 Difference]: Start difference. First operand 44569 states and 54468 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 07:30:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:30:41,088 INFO L93 Difference]: Finished difference Result 86983 states and 104917 transitions. [2023-12-16 07:30:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 07:30:41,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 261 [2023-12-16 07:30:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:30:41,181 INFO L225 Difference]: With dead ends: 86983 [2023-12-16 07:30:41,182 INFO L226 Difference]: Without dead ends: 44555 [2023-12-16 07:30:41,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 07:30:41,215 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 479 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 8356 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:30:41,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 8356 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:30:41,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44555 states. Received shutdown request... [2023-12-16 07:30:41,568 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:30:41,568 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 (46)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:30:42,574 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 [2023-12-16 07:30:42,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 07:30:42,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44555 to 44555. [2023-12-16 07:30:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44555 states, 42613 states have (on average 1.2283810104897566) internal successors, (52345), 42671 states have internal predecessors, (52345), 980 states have call successors, (980), 896 states have call predecessors, (980), 960 states have return successors, (1116), 988 states have call predecessors, (1116), 980 states have call successors, (1116) [2023-12-16 07:30:42,906 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 07:30:42,907 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 07:30:42,908 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 07:30:42,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 07:30:42,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:30:42,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:30:42 BoogieIcfgContainer [2023-12-16 07:30:42,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:30:42,942 INFO L158 Benchmark]: Toolchain (without parser) took 65388.73ms. Allocated memory was 292.6MB in the beginning and 2.8GB in the end (delta: 2.5GB). Free memory was 242.1MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 07:30:42,942 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 225.4MB. Free memory is still 174.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:30:42,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2252.80ms. Allocated memory was 292.6MB in the beginning and 427.8MB in the end (delta: 135.3MB). Free memory was 241.7MB in the beginning and 299.1MB in the end (delta: -57.4MB). Peak memory consumption was 139.1MB. Max. memory is 8.0GB. [2023-12-16 07:30:42,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 297.15ms. Allocated memory is still 427.8MB. Free memory was 299.1MB in the beginning and 218.9MB in the end (delta: 80.1MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-16 07:30:42,943 INFO L158 Benchmark]: Boogie Preprocessor took 581.67ms. Allocated memory is still 427.8MB. Free memory was 218.9MB in the beginning and 222.1MB in the end (delta: -3.1MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. [2023-12-16 07:30:42,943 INFO L158 Benchmark]: RCFGBuilder took 7993.99ms. Allocated memory was 427.8MB in the beginning and 1.4GB in the end (delta: 944.8MB). Free memory was 222.1MB in the beginning and 796.7MB in the end (delta: -574.6MB). Peak memory consumption was 436.2MB. Max. memory is 8.0GB. [2023-12-16 07:30:42,943 INFO L158 Benchmark]: TraceAbstraction took 54256.67ms. Allocated memory was 1.4GB in the beginning and 2.8GB in the end (delta: 1.4GB). Free memory was 796.2MB in the beginning and 1.7GB in the end (delta: -875.6MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 07:30:42,943 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 225.4MB. Free memory is still 174.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2252.80ms. Allocated memory was 292.6MB in the beginning and 427.8MB in the end (delta: 135.3MB). Free memory was 241.7MB in the beginning and 299.1MB in the end (delta: -57.4MB). Peak memory consumption was 139.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 297.15ms. Allocated memory is still 427.8MB. Free memory was 299.1MB in the beginning and 218.9MB in the end (delta: 80.1MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 581.67ms. Allocated memory is still 427.8MB. Free memory was 218.9MB in the beginning and 222.1MB in the end (delta: -3.1MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. * RCFGBuilder took 7993.99ms. Allocated memory was 427.8MB in the beginning and 1.4GB in the end (delta: 944.8MB). Free memory was 222.1MB in the beginning and 796.7MB in the end (delta: -574.6MB). Peak memory consumption was 436.2MB. Max. memory is 8.0GB. * TraceAbstraction took 54256.67ms. Allocated memory was 1.4GB in the beginning and 2.8GB in the end (delta: 1.4GB). Free memory was 796.2MB in the beginning and 1.7GB in the end (delta: -875.6MB). Peak memory consumption was 1.3GB. 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: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 11022]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11022). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 54.2s, OverallIterations: 45, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143079 SdHoareTripleChecker+Valid, 13.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142552 mSDsluCounter, 542207 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 347037 mSDsCounter, 1083 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17552 IncrementalHoareTripleChecker+Invalid, 18635 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1083 mSolverCounterUnsat, 195170 mSDtfsCounter, 17552 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7529 GetRequests, 7389 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44569occurred in iteration=44, InterpolantAutomatonStates: 193, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.9s AutomataMinimizationTime, 45 MinimizatonAttempts, 1853 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 7543 NumberOfCodeBlocks, 7543 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 7498 ConstructedInterpolants, 0 QuantifiedInterpolants, 12072 SizeOfPredicates, 12 NumberOfNonLiveVariables, 21145 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 45 InterpolantComputations, 45 PerfectInterpolantSequences, 234/234 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