/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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 03:05:23,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 03:05:23,436 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 03:05:23,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 03:05:23,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 03:05:23,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 03:05:23,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 03:05:23,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 03:05:23,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 03:05:23,463 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 03:05:23,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 03:05:23,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 03:05:23,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 03:05:23,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 03:05:23,465 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 03:05:23,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 03:05:23,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 03:05:23,465 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 03:05:23,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 03:05:23,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 03:05:23,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 03:05:23,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 03:05:23,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 03:05:23,477 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 03:05:23,477 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 03:05:23,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 03:05:23,478 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 03:05:23,478 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 03:05:23,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 03:05:23,479 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 03:05:23,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 03:05:23,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 03:05:23,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 03:05:23,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 03:05:23,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 03:05:23,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 03:05:23,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 03:05:23,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 03:05:23,481 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 03:05:23,481 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 03:05:23,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 03:05:23,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 03:05:23,496 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 03:05:23,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 03:05:23,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 03:05:23,497 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 03:05:23,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 03:05:23,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 03:05:23,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 03:05:23,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 03:05:23,710 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 03:05:23,710 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 03:05:23,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-89.i [2023-12-23 03:05:24,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 03:05:25,114 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 03:05:25,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-89.i [2023-12-23 03:05:25,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fda9674af/585553dd590e4b4387d91df16aee923d/FLAG703a480d0 [2023-12-23 03:05:25,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fda9674af/585553dd590e4b4387d91df16aee923d [2023-12-23 03:05:25,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 03:05:25,141 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 03:05:25,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 03:05:25,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 03:05:25,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 03:05:25,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120dada6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25, skipping insertion in model container [2023-12-23 03:05:25,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,189 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 03:05:25,308 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-89.i[916,929] [2023-12-23 03:05:25,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 03:05:25,431 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 03:05:25,439 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-89.i[916,929] [2023-12-23 03:05:25,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 03:05:25,544 INFO L206 MainTranslator]: Completed translation [2023-12-23 03:05:25,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25 WrapperNode [2023-12-23 03:05:25,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 03:05:25,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 03:05:25,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 03:05:25,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 03:05:25,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,616 INFO L138 Inliner]: procedures = 27, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2023-12-23 03:05:25,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 03:05:25,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 03:05:25,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 03:05:25,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 03:05:25,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,662 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]. [2023-12-23 03:05:25,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 03:05:25,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 03:05:25,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 03:05:25,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 03:05:25,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (1/1) ... [2023-12-23 03:05:25,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 03:05:25,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 03:05:25,720 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) [2023-12-23 03:05:25,753 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 [2023-12-23 03:05:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 03:05:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 03:05:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 03:05:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 03:05:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 03:05:25,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 03:05:25,836 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 03:05:25,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 03:05:38,009 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 03:05:38,050 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 03:05:38,050 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 03:05:38,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:05:38 BoogieIcfgContainer [2023-12-23 03:05:38,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 03:05:38,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 03:05:38,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 03:05:38,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 03:05:38,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:05:25" (1/3) ... [2023-12-23 03:05:38,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5977e3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:05:38, skipping insertion in model container [2023-12-23 03:05:38,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:05:25" (2/3) ... [2023-12-23 03:05:38,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5977e3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:05:38, skipping insertion in model container [2023-12-23 03:05:38,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:05:38" (3/3) ... [2023-12-23 03:05:38,060 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-89.i [2023-12-23 03:05:38,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 03:05:38,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 03:05:38,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 03:05:38,119 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;@167b7fd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 03:05:38,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 03:05:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 111 states have (on average 1.5945945945945945) internal successors, (177), 112 states have internal predecessors, (177), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-23 03:05:38,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-12-23 03:05:38,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:05:38,143 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:05:38,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:05:38,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:05:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1827227755, now seen corresponding path program 1 times [2023-12-23 03:05:38,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:05:38,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684250220] [2023-12-23 03:05:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:05:38,159 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 [2023-12-23 03:05:38,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:05:38,163 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) [2023-12-23 03:05:38,164 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 [2023-12-23 03:05:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:05:38,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 03:05:38,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:05:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1016 proven. 0 refuted. 0 times theorem prover too weak. 6304 trivial. 0 not checked. [2023-12-23 03:05:38,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:05:38,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:05:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684250220] [2023-12-23 03:05:38,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684250220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:05:38,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:05:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 03:05:38,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854484817] [2023-12-23 03:05:38,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:05:38,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 03:05:38,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:05:38,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 03:05:38,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 03:05:38,920 INFO L87 Difference]: Start difference. First operand has 175 states, 111 states have (on average 1.5945945945945945) internal successors, (177), 112 states have internal predecessors, (177), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-12-23 03:05:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:05:39,167 INFO L93 Difference]: Finished difference Result 347 states and 657 transitions. [2023-12-23 03:05:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 03:05:39,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 383 [2023-12-23 03:05:39,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:05:39,188 INFO L225 Difference]: With dead ends: 347 [2023-12-23 03:05:39,189 INFO L226 Difference]: Without dead ends: 173 [2023-12-23 03:05:39,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 03:05:39,194 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 03:05:39,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 290 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 03:05:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-23 03:05:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-23 03:05:39,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.5545454545454545) internal successors, (171), 110 states have internal predecessors, (171), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-23 03:05:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 293 transitions. [2023-12-23 03:05:39,235 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 293 transitions. Word has length 383 [2023-12-23 03:05:39,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:05:39,235 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 293 transitions. [2023-12-23 03:05:39,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-12-23 03:05:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 293 transitions. [2023-12-23 03:05:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-12-23 03:05:39,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:05:39,242 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:05:39,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 03:05:39,456 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 [2023-12-23 03:05:39,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:05:39,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:05:39,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1974069271, now seen corresponding path program 1 times [2023-12-23 03:05:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:05:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763443936] [2023-12-23 03:05:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:05:39,459 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 [2023-12-23 03:05:39,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:05:39,467 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) [2023-12-23 03:05:39,493 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 [2023-12-23 03:05:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:05:40,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 03:05:40,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:05:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-23 03:05:43,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:05:43,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:05:43,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763443936] [2023-12-23 03:05:43,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763443936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:05:43,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 03:05:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 03:05:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940647383] [2023-12-23 03:05:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:05:43,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 03:05:43,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:05:43,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 03:05:43,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 03:05:43,127 INFO L87 Difference]: Start difference. First operand 173 states and 293 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:05:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:05:43,693 INFO L93 Difference]: Finished difference Result 515 states and 873 transitions. [2023-12-23 03:05:43,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 03:05:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 383 [2023-12-23 03:05:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:05:43,699 INFO L225 Difference]: With dead ends: 515 [2023-12-23 03:05:43,699 INFO L226 Difference]: Without dead ends: 343 [2023-12-23 03:05:43,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 03:05:43,700 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 118 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 03:05:43,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 614 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 03:05:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-23 03:05:43,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 340. [2023-12-23 03:05:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 215 states have (on average 1.5302325581395348) internal successors, (329), 215 states have internal predecessors, (329), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-23 03:05:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 573 transitions. [2023-12-23 03:05:43,769 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 573 transitions. Word has length 383 [2023-12-23 03:05:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:05:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 573 transitions. [2023-12-23 03:05:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:05:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 573 transitions. [2023-12-23 03:05:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-12-23 03:05:43,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:05:43,775 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:05:43,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-23 03:05:43,975 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 [2023-12-23 03:05:43,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:05:43,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:05:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash 348417588, now seen corresponding path program 1 times [2023-12-23 03:05:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:05:43,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458850463] [2023-12-23 03:05:43,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:05:43,978 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 [2023-12-23 03:05:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:05:43,996 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) [2023-12-23 03:05:43,999 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 [2023-12-23 03:05:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:05:44,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 03:05:44,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:05:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3480 proven. 66 refuted. 0 times theorem prover too weak. 3774 trivial. 0 not checked. [2023-12-23 03:05:46,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:05:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 114 proven. 66 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-12-23 03:05:46,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:05:46,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458850463] [2023-12-23 03:05:46,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458850463] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 03:05:46,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 03:05:46,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 03:05:46,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307444784] [2023-12-23 03:05:46,974 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 03:05:46,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 03:05:46,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:05:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 03:05:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 03:05:46,978 INFO L87 Difference]: Start difference. First operand 340 states and 573 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2023-12-23 03:05:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:05:50,378 INFO L93 Difference]: Finished difference Result 752 states and 1254 transitions. [2023-12-23 03:05:50,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 03:05:50,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 384 [2023-12-23 03:05:50,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:05:50,385 INFO L225 Difference]: With dead ends: 752 [2023-12-23 03:05:50,385 INFO L226 Difference]: Without dead ends: 413 [2023-12-23 03:05:50,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 760 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 03:05:50,387 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 180 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-23 03:05:50,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 686 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-23 03:05:50,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-23 03:05:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 406. [2023-12-23 03:05:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 241 states have (on average 1.4481327800829875) internal successors, (349), 242 states have internal predecessors, (349), 160 states have call successors, (160), 4 states have call predecessors, (160), 4 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2023-12-23 03:05:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 669 transitions. [2023-12-23 03:05:50,421 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 669 transitions. Word has length 384 [2023-12-23 03:05:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:05:50,422 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 669 transitions. [2023-12-23 03:05:50,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2023-12-23 03:05:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 669 transitions. [2023-12-23 03:05:50,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-12-23 03:05:50,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:05:50,425 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:05:50,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-23 03:05:50,638 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 [2023-12-23 03:05:50,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:05:50,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:05:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1031302805, now seen corresponding path program 1 times [2023-12-23 03:05:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:05:50,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798666675] [2023-12-23 03:05:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:05:50,640 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 [2023-12-23 03:05:50,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:05:50,657 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) [2023-12-23 03:05:50,668 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 [2023-12-23 03:05:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:05:51,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 03:05:51,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:05:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3752 proven. 174 refuted. 0 times theorem prover too weak. 3394 trivial. 0 not checked. [2023-12-23 03:05:54,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:05:56,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:05:56,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798666675] [2023-12-23 03:05:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798666675] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:05:56,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [493827398] [2023-12-23 03:05:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:05:56,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:05:56,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:05:56,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:05:56,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 03:05:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:05:57,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 03:05:57,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:05:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-23 03:05:57,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:05:57,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [493827398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:05:57,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 03:05:57,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-23 03:05:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638653471] [2023-12-23 03:05:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:05:57,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 03:05:57,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:05:57,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 03:05:57,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:05:57,271 INFO L87 Difference]: Start difference. First operand 406 states and 669 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:05:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:05:57,599 INFO L93 Difference]: Finished difference Result 1098 states and 1809 transitions. [2023-12-23 03:05:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 03:05:57,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 386 [2023-12-23 03:05:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:05:57,605 INFO L225 Difference]: With dead ends: 1098 [2023-12-23 03:05:57,605 INFO L226 Difference]: Without dead ends: 751 [2023-12-23 03:05:57,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:05:57,607 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 276 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 03:05:57,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 823 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 03:05:57,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-23 03:05:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 749. [2023-12-23 03:05:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 458 states have (on average 1.462882096069869) internal successors, (670), 459 states have internal predecessors, (670), 282 states have call successors, (282), 8 states have call predecessors, (282), 8 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282) [2023-12-23 03:05:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1234 transitions. [2023-12-23 03:05:57,677 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1234 transitions. Word has length 386 [2023-12-23 03:05:57,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:05:57,681 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1234 transitions. [2023-12-23 03:05:57,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:05:57,681 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1234 transitions. [2023-12-23 03:05:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-23 03:05:57,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:05:57,685 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:05:57,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 03:05:57,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 03:05:58,105 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 03:05:58,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:05:58,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:05:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash -993425895, now seen corresponding path program 1 times [2023-12-23 03:05:58,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:05:58,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986890563] [2023-12-23 03:05:58,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:05:58,108 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 [2023-12-23 03:05:58,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:05:58,109 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) [2023-12-23 03:05:58,110 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 [2023-12-23 03:05:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:05:58,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 03:05:58,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:06:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3752 proven. 174 refuted. 0 times theorem prover too weak. 3394 trivial. 0 not checked. [2023-12-23 03:06:02,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:06:04,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:06:04,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986890563] [2023-12-23 03:06:04,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986890563] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:06:04,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [152181365] [2023-12-23 03:06:04,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:06:04,237 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:06:04,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:06:04,239 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:06:04,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 03:06:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:06:04,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 03:06:04,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:06:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-23 03:06:04,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:06:04,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [152181365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:06:04,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 03:06:04,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-23 03:06:04,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006875811] [2023-12-23 03:06:04,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:06:04,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 03:06:04,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:06:05,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 03:06:05,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:06:05,000 INFO L87 Difference]: Start difference. First operand 749 states and 1234 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:06:05,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:06:05,425 INFO L93 Difference]: Finished difference Result 1837 states and 3035 transitions. [2023-12-23 03:06:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 03:06:05,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 387 [2023-12-23 03:06:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:06:05,432 INFO L225 Difference]: With dead ends: 1837 [2023-12-23 03:06:05,432 INFO L226 Difference]: Without dead ends: 1147 [2023-12-23 03:06:05,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:06:05,455 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 166 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 03:06:05,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 583 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 03:06:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2023-12-23 03:06:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1141. [2023-12-23 03:06:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 757 states have (on average 1.5046235138705417) internal successors, (1139), 762 states have internal predecessors, (1139), 370 states have call successors, (370), 13 states have call predecessors, (370), 13 states have return successors, (370), 365 states have call predecessors, (370), 370 states have call successors, (370) [2023-12-23 03:06:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1879 transitions. [2023-12-23 03:06:05,514 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1879 transitions. Word has length 387 [2023-12-23 03:06:05,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:06:05,515 INFO L495 AbstractCegarLoop]: Abstraction has 1141 states and 1879 transitions. [2023-12-23 03:06:05,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:06:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1879 transitions. [2023-12-23 03:06:05,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-23 03:06:05,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:06:05,518 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:06:05,537 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 [2023-12-23 03:06:05,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 03:06:05,935 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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 03:06:05,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:06:05,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:06:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2025143079, now seen corresponding path program 1 times [2023-12-23 03:06:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:06:05,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595671560] [2023-12-23 03:06:05,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:06:05,936 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 [2023-12-23 03:06:05,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:06:05,939 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) [2023-12-23 03:06:05,968 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 [2023-12-23 03:06:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:06:06,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 03:06:06,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:06:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3752 proven. 174 refuted. 0 times theorem prover too weak. 3394 trivial. 0 not checked. [2023-12-23 03:06:09,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:06:11,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:06:11,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595671560] [2023-12-23 03:06:11,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595671560] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:06:11,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1242494551] [2023-12-23 03:06:11,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:06:11,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:06:11,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:06:11,542 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:06:11,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-23 03:06:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:06:12,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 03:06:12,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:06:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-12-23 03:06:12,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 03:06:12,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1242494551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 03:06:12,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 03:06:12,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-23 03:06:12,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057840121] [2023-12-23 03:06:12,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 03:06:12,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 03:06:12,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:06:12,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 03:06:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:06:12,326 INFO L87 Difference]: Start difference. First operand 1141 states and 1879 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:06:12,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:06:12,692 INFO L93 Difference]: Finished difference Result 3281 states and 5405 transitions. [2023-12-23 03:06:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 03:06:12,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 387 [2023-12-23 03:06:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:06:12,702 INFO L225 Difference]: With dead ends: 3281 [2023-12-23 03:06:12,702 INFO L226 Difference]: Without dead ends: 2203 [2023-12-23 03:06:12,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-23 03:06:12,707 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 280 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 03:06:12,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 561 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 03:06:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2023-12-23 03:06:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2185. [2023-12-23 03:06:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 1457 states have (on average 1.485929993136582) internal successors, (2165), 1466 states have internal predecessors, (2165), 702 states have call successors, (702), 25 states have call predecessors, (702), 25 states have return successors, (702), 693 states have call predecessors, (702), 702 states have call successors, (702) [2023-12-23 03:06:12,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 3569 transitions. [2023-12-23 03:06:12,856 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 3569 transitions. Word has length 387 [2023-12-23 03:06:12,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:06:12,857 INFO L495 AbstractCegarLoop]: Abstraction has 2185 states and 3569 transitions. [2023-12-23 03:06:12,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-12-23 03:06:12,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 3569 transitions. [2023-12-23 03:06:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-23 03:06:12,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:06:12,860 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:06:12,879 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 [2023-12-23 03:06:13,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-23 03:06:13,276 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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 03:06:13,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:06:13,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:06:13,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2025083497, now seen corresponding path program 1 times [2023-12-23 03:06:13,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:06:13,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649326093] [2023-12-23 03:06:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:06:13,278 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 [2023-12-23 03:06:13,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:06:13,279 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) [2023-12-23 03:06:13,282 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 [2023-12-23 03:06:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:06:14,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 03:06:14,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:06:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3752 proven. 174 refuted. 0 times theorem prover too weak. 3394 trivial. 0 not checked. [2023-12-23 03:06:17,297 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:06:18,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 03:06:18,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649326093] [2023-12-23 03:06:18,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649326093] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:06:18,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1399053026] [2023-12-23 03:06:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:06:18,722 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 03:06:18,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 03:06:18,723 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 03:06:18,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-23 03:06:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:06:21,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 03:06:21,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 03:06:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 132 proven. 2880 refuted. 0 times theorem prover too weak. 4308 trivial. 0 not checked. [2023-12-23 03:06:29,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 03:06:30,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1399053026] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 03:06:30,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 03:06:30,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2023-12-23 03:06:30,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85376116] [2023-12-23 03:06:30,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 03:06:30,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-23 03:06:30,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 03:06:30,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-23 03:06:30,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-23 03:06:30,856 INFO L87 Difference]: Start difference. First operand 2185 states and 3569 transitions. Second operand has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 12 states have internal predecessors, (166), 5 states have call successors, (122), 5 states have call predecessors, (122), 7 states have return successors, (122), 5 states have call predecessors, (122), 5 states have call successors, (122) [2023-12-23 03:06:37,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:06:43,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:06:47,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:06:51,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:06:54,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:06:58,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:02,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:06,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:08,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:19,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:22,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:27,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:31,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:35,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:40,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 03:07:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 03:07:41,566 INFO L93 Difference]: Finished difference Result 9437 states and 15135 transitions. [2023-12-23 03:07:41,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-23 03:07:41,573 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 12 states have internal predecessors, (166), 5 states have call successors, (122), 5 states have call predecessors, (122), 7 states have return successors, (122), 5 states have call predecessors, (122), 5 states have call successors, (122) Word has length 387 [2023-12-23 03:07:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 03:07:41,603 INFO L225 Difference]: With dead ends: 9437 [2023-12-23 03:07:41,603 INFO L226 Difference]: Without dead ends: 7315 [2023-12-23 03:07:41,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 946 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=419, Invalid=1303, Unknown=0, NotChecked=0, Total=1722 [2023-12-23 03:07:41,612 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1110 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 423 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.5s IncrementalHoareTripleChecker+Time [2023-12-23 03:07:41,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 1344 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1328 Invalid, 10 Unknown, 0 Unchecked, 67.5s Time] [2023-12-23 03:07:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2023-12-23 03:07:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 7161. [2023-12-23 03:07:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7161 states, 4839 states have (on average 1.4579458565819383) internal successors, (7055), 4888 states have internal predecessors, (7055), 2198 states have call successors, (2198), 123 states have call predecessors, (2198), 123 states have return successors, (2198), 2149 states have call predecessors, (2198), 2198 states have call successors, (2198) [2023-12-23 03:07:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7161 states to 7161 states and 11451 transitions. [2023-12-23 03:07:42,115 INFO L78 Accepts]: Start accepts. Automaton has 7161 states and 11451 transitions. Word has length 387 [2023-12-23 03:07:42,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 03:07:42,116 INFO L495 AbstractCegarLoop]: Abstraction has 7161 states and 11451 transitions. [2023-12-23 03:07:42,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 12 states have internal predecessors, (166), 5 states have call successors, (122), 5 states have call predecessors, (122), 7 states have return successors, (122), 5 states have call predecessors, (122), 5 states have call successors, (122) [2023-12-23 03:07:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 7161 states and 11451 transitions. [2023-12-23 03:07:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-23 03:07:42,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 03:07:42,122 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:07:42,146 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 [2023-12-23 03:07:42,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-23 03:07:42,536 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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 03:07:42,537 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 03:07:42,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 03:07:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1456528553, now seen corresponding path program 1 times [2023-12-23 03:07:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 03:07:42,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848637230] [2023-12-23 03:07:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 03:07:42,538 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 [2023-12-23 03:07:42,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 03:07:42,539 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) [2023-12-23 03:07:42,588 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 [2023-12-23 03:07:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 03:07:43,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 03:07:43,385 INFO L285 TraceCheckSpWp]: Computing forward predicates...