/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_operatoramount_amount100_file-63.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 14:31:56,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 14:31:56,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 14:31:56,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 14:31:56,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 14:31:56,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 14:31:56,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 14:31:56,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 14:31:56,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 14:31:56,277 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 14:31:56,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 14:31:56,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 14:31:56,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 14:31:56,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 14:31:56,279 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 14:31:56,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 14:31:56,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 14:31:56,280 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 14:31:56,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 14:31:56,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 14:31:56,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 14:31:56,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 14:31:56,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 14:31:56,282 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 14:31:56,282 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 14:31:56,282 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 14:31:56,283 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 14:31:56,283 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 14:31:56,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 14:31:56,283 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 14:31:56,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 14:31:56,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 14:31:56,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 14:31:56,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 14:31:56,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:31:56,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 14:31:56,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 14:31:56,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 14:31:56,285 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 14:31:56,285 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 14:31:56,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 14:31:56,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 14:31:56,286 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 14:31:56,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 14:31:56,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 14:31:56,287 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 14:31:56,287 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 14:31:56,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 14:31:56,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 14:31:56,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 14:31:56,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 14:31:56,496 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 14:31:56,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-63.i [2023-12-16 14:31:57,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 14:31:57,697 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 14:31:57,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-63.i [2023-12-16 14:31:57,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1859793d7/02d3c12b1d574ecc943f9d2eb608c817/FLAG5ce2ed4be [2023-12-16 14:31:57,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1859793d7/02d3c12b1d574ecc943f9d2eb608c817 [2023-12-16 14:31:57,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 14:31:57,722 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 14:31:57,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 14:31:57,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 14:31:57,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 14:31:57,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:57,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230460ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57, skipping insertion in model container [2023-12-16 14:31:57,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:57,758 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 14:31:57,854 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_operatoramount_amount100_file-63.i[916,929] [2023-12-16 14:31:57,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:31:57,912 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 14:31:57,920 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_operatoramount_amount100_file-63.i[916,929] [2023-12-16 14:31:57,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 14:31:57,965 INFO L206 MainTranslator]: Completed translation [2023-12-16 14:31:57,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57 WrapperNode [2023-12-16 14:31:57,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 14:31:57,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 14:31:57,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 14:31:57,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 14:31:57,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:57,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,004 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2023-12-16 14:31:58,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 14:31:58,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 14:31:58,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 14:31:58,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 14:31:58,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,033 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 14:31:58,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 14:31:58,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 14:31:58,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 14:31:58,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 14:31:58,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (1/1) ... [2023-12-16 14:31:58,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 14:31:58,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 14:31:58,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 14:31:58,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 14:31:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 14:31:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 14:31:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 14:31:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 14:31:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 14:31:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 14:31:58,222 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 14:31:58,225 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 14:31:59,097 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 14:31:59,132 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 14:31:59,132 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 14:31:59,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:31:59 BoogieIcfgContainer [2023-12-16 14:31:59,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 14:31:59,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 14:31:59,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 14:31:59,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 14:31:59,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:31:57" (1/3) ... [2023-12-16 14:31:59,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdcfd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:31:59, skipping insertion in model container [2023-12-16 14:31:59,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:31:57" (2/3) ... [2023-12-16 14:31:59,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdcfd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:31:59, skipping insertion in model container [2023-12-16 14:31:59,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:31:59" (3/3) ... [2023-12-16 14:31:59,138 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-63.i [2023-12-16 14:31:59,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 14:31:59,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 14:31:59,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 14:31:59,193 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;@71df5141, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 14:31:59,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 14:31:59,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 14:31:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 14:31:59,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:31:59,206 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:31:59,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:31:59,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:31:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1637524823, now seen corresponding path program 1 times [2023-12-16 14:31:59,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:31:59,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066758800] [2023-12-16 14:31:59,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:31:59,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:31:59,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:31:59,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:31:59,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 14:31:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:31:59,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 14:31:59,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:31:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-12-16 14:31:59,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:31:59,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:31:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066758800] [2023-12-16 14:31:59,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066758800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:31:59,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 14:31:59,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 14:31:59,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447694453] [2023-12-16 14:31:59,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:31:59,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 14:31:59,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:31:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 14:31:59,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:31:59,555 INFO L87 Difference]: Start difference. First operand has 70 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 48 states have internal predecessors, (72), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 14:31:59,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:31:59,937 INFO L93 Difference]: Finished difference Result 137 states and 242 transitions. [2023-12-16 14:31:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 14:31:59,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2023-12-16 14:31:59,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:31:59,967 INFO L225 Difference]: With dead ends: 137 [2023-12-16 14:31:59,967 INFO L226 Difference]: Without dead ends: 68 [2023-12-16 14:31:59,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 14:31:59,978 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 14:31:59,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 14:31:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-16 14:32:00,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-16 14:32:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 14:32:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 105 transitions. [2023-12-16 14:32:00,008 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 105 transitions. Word has length 136 [2023-12-16 14:32:00,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:00,008 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 105 transitions. [2023-12-16 14:32:00,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 14:32:00,009 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 105 transitions. [2023-12-16 14:32:00,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 14:32:00,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:00,011 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:00,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 14:32:00,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:00,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:00,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:00,221 INFO L85 PathProgramCache]: Analyzing trace with hash 591844717, now seen corresponding path program 1 times [2023-12-16 14:32:00,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:00,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613939880] [2023-12-16 14:32:00,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:00,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:00,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:00,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:00,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 14:32:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:00,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 14:32:00,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:01,957 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-16 14:32:01,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:03,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:03,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613939880] [2023-12-16 14:32:03,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613939880] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:32:03,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1976931957] [2023-12-16 14:32:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:03,308 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:32:03,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:32:03,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 14:32:03,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 14:32:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:03,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 14:32:03,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 14:32:03,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 14:32:03,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1976931957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 14:32:03,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 14:32:03,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-16 14:32:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704970958] [2023-12-16 14:32:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 14:32:03,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 14:32:03,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 14:32:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-16 14:32:03,764 INFO L87 Difference]: Start difference. First operand 68 states and 105 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 14:32:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:04,319 INFO L93 Difference]: Finished difference Result 217 states and 330 transitions. [2023-12-16 14:32:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 14:32:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-12-16 14:32:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:04,322 INFO L225 Difference]: With dead ends: 217 [2023-12-16 14:32:04,322 INFO L226 Difference]: Without dead ends: 150 [2023-12-16 14:32:04,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-16 14:32:04,323 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 152 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 14:32:04,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 239 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 14:32:04,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-16 14:32:04,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 111. [2023-12-16 14:32:04,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 80 states have (on average 1.425) internal successors, (114), 81 states have internal predecessors, (114), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 14:32:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 170 transitions. [2023-12-16 14:32:04,353 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 170 transitions. Word has length 136 [2023-12-16 14:32:04,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:04,355 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 170 transitions. [2023-12-16 14:32:04,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 14:32:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 170 transitions. [2023-12-16 14:32:04,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 14:32:04,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:04,357 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:04,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 14:32:04,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 14:32:04,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:04,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:04,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:04,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1610296721, now seen corresponding path program 1 times [2023-12-16 14:32:04,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:04,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013986796] [2023-12-16 14:32:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:04,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:04,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:04,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:04,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 14:32:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:04,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 14:32:04,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-16 14:32:06,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:07,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:07,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013986796] [2023-12-16 14:32:07,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013986796] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:32:07,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [997482862] [2023-12-16 14:32:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:07,606 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 14:32:07,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 14:32:07,607 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) [2023-12-16 14:32:07,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 14:32:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:08,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 14:32:08,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 382 proven. 81 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-16 14:32:09,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:09,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [997482862] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 14:32:09,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:32:09,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-16 14:32:09,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057741900] [2023-12-16 14:32:09,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:32:09,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 14:32:09,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:09,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 14:32:09,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-16 14:32:09,833 INFO L87 Difference]: Start difference. First operand 111 states and 170 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 14:32:11,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:11,773 INFO L93 Difference]: Finished difference Result 329 states and 497 transitions. [2023-12-16 14:32:11,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 14:32:11,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 136 [2023-12-16 14:32:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:11,799 INFO L225 Difference]: With dead ends: 329 [2023-12-16 14:32:11,800 INFO L226 Difference]: Without dead ends: 219 [2023-12-16 14:32:11,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2023-12-16 14:32:11,801 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 89 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 14:32:11,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 527 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 14:32:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-16 14:32:11,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 157. [2023-12-16 14:32:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 104 states have internal predecessors, (138), 48 states have call successors, (48), 5 states have call predecessors, (48), 5 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 14:32:11,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 234 transitions. [2023-12-16 14:32:11,830 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 234 transitions. Word has length 136 [2023-12-16 14:32:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:11,832 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 234 transitions. [2023-12-16 14:32:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 14:32:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 234 transitions. [2023-12-16 14:32:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 14:32:11,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:11,835 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:11,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 14:32:12,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-16 14:32:12,237 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 [2023-12-16 14:32:12,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:12,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1131014195, now seen corresponding path program 1 times [2023-12-16 14:32:12,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:12,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559115252] [2023-12-16 14:32:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:12,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:12,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:12,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:12,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 14:32:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:12,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 14:32:12,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 343 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-16 14:32:12,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 14:32:12,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:12,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559115252] [2023-12-16 14:32:12,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559115252] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:32:12,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:32:12,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 14:32:12,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358040257] [2023-12-16 14:32:12,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:32:12,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 14:32:12,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 14:32:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 14:32:12,807 INFO L87 Difference]: Start difference. First operand 157 states and 234 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 14:32:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:13,441 INFO L93 Difference]: Finished difference Result 284 states and 414 transitions. [2023-12-16 14:32:13,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 14:32:13,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 136 [2023-12-16 14:32:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:13,467 INFO L225 Difference]: With dead ends: 284 [2023-12-16 14:32:13,467 INFO L226 Difference]: Without dead ends: 174 [2023-12-16 14:32:13,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 14:32:13,469 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 149 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 14:32:13,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 171 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 14:32:13,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-16 14:32:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2023-12-16 14:32:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 110 states have internal predecessors, (137), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 14:32:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 233 transitions. [2023-12-16 14:32:13,485 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 233 transitions. Word has length 136 [2023-12-16 14:32:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:13,485 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 233 transitions. [2023-12-16 14:32:13,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 14:32:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 233 transitions. [2023-12-16 14:32:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 14:32:13,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:13,487 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:13,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 14:32:13,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:13,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:13,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1901627613, now seen corresponding path program 1 times [2023-12-16 14:32:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:13,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846033813] [2023-12-16 14:32:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:13,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:13,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:13,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:13,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 14:32:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:13,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 14:32:13,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-16 14:32:14,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 14:32:14,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:14,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846033813] [2023-12-16 14:32:14,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846033813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:32:14,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:32:14,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 14:32:14,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890257033] [2023-12-16 14:32:14,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:32:14,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 14:32:14,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:14,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 14:32:14,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 14:32:14,156 INFO L87 Difference]: Start difference. First operand 166 states and 233 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-16 14:32:15,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:15,050 INFO L93 Difference]: Finished difference Result 375 states and 516 transitions. [2023-12-16 14:32:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 14:32:15,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 137 [2023-12-16 14:32:15,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:15,055 INFO L225 Difference]: With dead ends: 375 [2023-12-16 14:32:15,055 INFO L226 Difference]: Without dead ends: 260 [2023-12-16 14:32:15,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 266 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-16 14:32:15,057 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 159 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 14:32:15,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 212 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 14:32:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-16 14:32:15,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 236. [2023-12-16 14:32:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 153 states have (on average 1.2091503267973855) internal successors, (185), 155 states have internal predecessors, (185), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 14:32:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 321 transitions. [2023-12-16 14:32:15,078 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 321 transitions. Word has length 137 [2023-12-16 14:32:15,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:15,078 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 321 transitions. [2023-12-16 14:32:15,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-16 14:32:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 321 transitions. [2023-12-16 14:32:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 14:32:15,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:15,079 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:15,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 14:32:15,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:15,290 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:15,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1802946461, now seen corresponding path program 1 times [2023-12-16 14:32:15,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:15,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045460829] [2023-12-16 14:32:15,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:15,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:15,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:15,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:15,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 14:32:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:15,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 14:32:15,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 14:32:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-16 14:32:15,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 14:32:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 14:32:15,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 14:32:15,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045460829] [2023-12-16 14:32:15,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045460829] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 14:32:15,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 14:32:15,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-16 14:32:15,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196785454] [2023-12-16 14:32:15,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 14:32:15,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 14:32:15,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 14:32:15,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 14:32:15,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-16 14:32:15,794 INFO L87 Difference]: Start difference. First operand 236 states and 321 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-16 14:32:16,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 14:32:16,623 INFO L93 Difference]: Finished difference Result 441 states and 597 transitions. [2023-12-16 14:32:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 14:32:16,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 137 [2023-12-16 14:32:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 14:32:16,629 INFO L225 Difference]: With dead ends: 441 [2023-12-16 14:32:16,629 INFO L226 Difference]: Without dead ends: 260 [2023-12-16 14:32:16,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2023-12-16 14:32:16,630 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 242 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 14:32:16,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 272 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 14:32:16,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-16 14:32:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 236. [2023-12-16 14:32:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 153 states have (on average 1.196078431372549) internal successors, (183), 155 states have internal predecessors, (183), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 14:32:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2023-12-16 14:32:16,647 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 137 [2023-12-16 14:32:16,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 14:32:16,647 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2023-12-16 14:32:16,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-16 14:32:16,648 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2023-12-16 14:32:16,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 14:32:16,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 14:32:16,649 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 14:32:16,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 14:32:16,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:16,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 14:32:16,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 14:32:16,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1122888091, now seen corresponding path program 1 times [2023-12-16 14:32:16,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 14:32:16,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032644354] [2023-12-16 14:32:16,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 14:32:16,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 14:32:16,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 14:32:16,859 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 14:32:16,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 14:32:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 14:32:17,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 14:32:17,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 14:33:01,068 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:33:01,068 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 14:33:02,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 14:33:02,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown