/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_fillercodestructure_filler-pr-ci_file-57.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 11:02:31,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 11:02:31,738 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 11:02:31,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 11:02:31,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 11:02:31,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 11:02:31,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 11:02:31,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 11:02:31,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 11:02:31,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 11:02:31,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 11:02:31,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 11:02:31,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 11:02:31,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 11:02:31,781 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 11:02:31,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 11:02:31,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 11:02:31,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 11:02:31,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 11:02:31,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 11:02:31,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 11:02:31,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 11:02:31,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 11:02:31,788 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 11:02:31,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 11:02:31,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 11:02:31,791 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 11:02:31,792 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 11:02:31,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 11:02:31,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 11:02:31,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 11:02:31,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 11:02:31,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 11:02:31,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 11:02:31,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 11:02:31,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 11:02:31,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 11:02:31,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 11:02:31,794 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 11:02:31,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 11:02:31,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 11:02:31,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 11:02:31,795 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 11:02:31,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 11:02:31,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 11:02:31,795 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 11:02:31,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 11:02:31,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 11:02:32,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 11:02:32,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 11:02:32,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 11:02:32,012 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 11:02:32,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-57.i [2023-12-23 11:02:33,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 11:02:33,273 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 11:02:33,273 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-57.i [2023-12-23 11:02:33,284 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e579677/c950ecc9815b4465a87bac01d9a68702/FLAGf108bdf23 [2023-12-23 11:02:33,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e579677/c950ecc9815b4465a87bac01d9a68702 [2023-12-23 11:02:33,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 11:02:33,301 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 11:02:33,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 11:02:33,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 11:02:33,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 11:02:33,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bb8d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33, skipping insertion in model container [2023-12-23 11:02:33,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 11:02:33,497 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_fillercodestructure_filler-pr-ci_file-57.i[919,932] [2023-12-23 11:02:33,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 11:02:33,577 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 11:02:33,594 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_fillercodestructure_filler-pr-ci_file-57.i[919,932] [2023-12-23 11:02:33,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 11:02:33,641 INFO L206 MainTranslator]: Completed translation [2023-12-23 11:02:33,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33 WrapperNode [2023-12-23 11:02:33,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 11:02:33,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 11:02:33,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 11:02:33,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 11:02:33,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,691 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-12-23 11:02:33,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 11:02:33,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 11:02:33,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 11:02:33,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 11:02:33,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,728 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 11:02:33,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 11:02:33,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 11:02:33,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 11:02:33,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 11:02:33,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (1/1) ... [2023-12-23 11:02:33,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 11:02:33,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 11:02:33,805 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 11:02:33,817 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 11:02:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 11:02:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 11:02:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 11:02:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 11:02:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 11:02:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 11:02:33,943 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 11:02:33,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 11:02:49,061 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 11:02:49,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 11:02:49,099 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 11:02:49,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:49 BoogieIcfgContainer [2023-12-23 11:02:49,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 11:02:49,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 11:02:49,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 11:02:49,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 11:02:49,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:02:33" (1/3) ... [2023-12-23 11:02:49,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fd8d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:49, skipping insertion in model container [2023-12-23 11:02:49,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:33" (2/3) ... [2023-12-23 11:02:49,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fd8d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:49, skipping insertion in model container [2023-12-23 11:02:49,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:49" (3/3) ... [2023-12-23 11:02:49,109 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-57.i [2023-12-23 11:02:49,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 11:02:49,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 11:02:49,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 11:02:49,172 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;@8a3e6e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 11:02:49,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 11:02:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 50 states have (on average 1.46) internal successors, (73), 51 states have internal predecessors, (73), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-23 11:02:49,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-23 11:02:49,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:02:49,189 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:49,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:02:49,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:02:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1176466105, now seen corresponding path program 1 times [2023-12-23 11:02:49,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:02:49,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788554161] [2023-12-23 11:02:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:02:49,206 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 11:02:49,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:02:49,208 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 11:02:49,212 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 11:02:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:02:50,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 11:02:50,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:02:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 942 proven. 0 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2023-12-23 11:02:50,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 11:02:50,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:02:50,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788554161] [2023-12-23 11:02:50,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788554161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 11:02:50,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 11:02:50,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 11:02:50,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117093025] [2023-12-23 11:02:50,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 11:02:50,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 11:02:50,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:02:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 11:02:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 11:02:50,440 INFO L87 Difference]: Start difference. First operand has 85 states, 50 states have (on average 1.46) internal successors, (73), 51 states have internal predecessors, (73), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-23 11:02:54,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:02:54,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:02:54,639 INFO L93 Difference]: Finished difference Result 166 states and 302 transitions. [2023-12-23 11:02:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 11:02:54,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 198 [2023-12-23 11:02:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:02:54,700 INFO L225 Difference]: With dead ends: 166 [2023-12-23 11:02:54,700 INFO L226 Difference]: Without dead ends: 82 [2023-12-23 11:02:54,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 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 11:02:54,712 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-23 11:02:54,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-23 11:02:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-12-23 11:02:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-12-23 11:02:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-23 11:02:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2023-12-23 11:02:54,757 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 198 [2023-12-23 11:02:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:02:54,757 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 127 transitions. [2023-12-23 11:02:54,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-23 11:02:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions. [2023-12-23 11:02:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-23 11:02:54,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:02:54,762 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:54,785 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 11:02:54,969 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 11:02:54,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:02:54,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:02:54,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2035859678, now seen corresponding path program 1 times [2023-12-23 11:02:54,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:02:54,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402605969] [2023-12-23 11:02:54,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:02:54,972 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 11:02:54,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:02:54,973 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 11:02:54,974 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 11:02:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:02:56,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 11:02:56,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:03:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1124 proven. 204 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2023-12-23 11:03:22,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 11:03:32,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 11:03:32,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402605969] [2023-12-23 11:03:32,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402605969] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 11:03:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594627386] [2023-12-23 11:03:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:03:32,603 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 11:03:32,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 11:03:32,633 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) [2023-12-23 11:03:32,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 11:03:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:03:36,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 11:03:36,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:04:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1160 proven. 123 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2023-12-23 11:04:00,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 11:04:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [594627386] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 11:04:24,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 11:04:24,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 21 [2023-12-23 11:04:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730813016] [2023-12-23 11:04:24,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 11:04:24,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-23 11:04:24,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 11:04:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-23 11:04:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2023-12-23 11:04:24,489 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand has 22 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 21 states have internal predecessors, (94), 6 states have call successors, (61), 6 states have call predecessors, (61), 10 states have return successors, (62), 6 states have call predecessors, (62), 6 states have call successors, (62) [2023-12-23 11:04:34,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:00,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:14,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:22,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:27,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:31,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:34,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:47,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:05:51,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:07,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:08,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:35,193 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 69 DAG size of output: 161 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 11:06:37,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:39,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:46,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:51,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:52,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:06:59,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:07:03,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:07:09,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:07:13,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:07:44,878 WARN L293 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 71 DAG size of output: 163 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 11:07:49,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:07:53,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:07:58,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:02,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:06,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:08:09,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:12,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:16,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:20,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:24,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:29,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:08:55,565 WARN L293 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 59 DAG size of output: 130 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 11:08:59,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:03,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 11:09:07,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:11,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:36,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:40,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:48,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:52,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:09:57,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:10:00,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:10:04,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:10:11,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:10:15,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:10:19,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 11:10:19,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 11:10:19,976 INFO L93 Difference]: Finished difference Result 313 states and 463 transitions. [2023-12-23 11:10:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-23 11:10:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 21 states have internal predecessors, (94), 6 states have call successors, (61), 6 states have call predecessors, (61), 10 states have return successors, (62), 6 states have call predecessors, (62), 6 states have call successors, (62) Word has length 199 [2023-12-23 11:10:19,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 11:10:19,990 INFO L225 Difference]: With dead ends: 313 [2023-12-23 11:10:19,990 INFO L226 Difference]: Without dead ends: 232 [2023-12-23 11:10:19,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 409 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 203.8s TimeCoverageRelationStatistics Valid=507, Invalid=1927, Unknown=16, NotChecked=0, Total=2450 [2023-12-23 11:10:19,993 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 393 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 61 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 189.8s IncrementalHoareTripleChecker+Time [2023-12-23 11:10:19,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 727 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1008 Invalid, 27 Unknown, 0 Unchecked, 189.8s Time] [2023-12-23 11:10:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-23 11:10:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 211. [2023-12-23 11:10:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 136 states have (on average 1.3308823529411764) internal successors, (181), 138 states have internal predecessors, (181), 67 states have call successors, (67), 7 states have call predecessors, (67), 7 states have return successors, (67), 65 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-23 11:10:20,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 315 transitions. [2023-12-23 11:10:20,027 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 315 transitions. Word has length 199 [2023-12-23 11:10:20,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 11:10:20,027 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 315 transitions. [2023-12-23 11:10:20,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 21 states have internal predecessors, (94), 6 states have call successors, (61), 6 states have call predecessors, (61), 10 states have return successors, (62), 6 states have call predecessors, (62), 6 states have call successors, (62) [2023-12-23 11:10:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 315 transitions. [2023-12-23 11:10:20,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-23 11:10:20,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 11:10:20,031 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:20,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-23 11:10:20,268 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 11:10:20,446 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 [2023-12-23 11:10:20,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 11:10:20,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 11:10:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1777694240, now seen corresponding path program 1 times [2023-12-23 11:10:20,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 11:10:20,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130139844] [2023-12-23 11:10:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 11:10:20,448 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 11:10:20,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 11:10:20,449 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 11:10:20,450 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 11:10:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 11:10:21,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-23 11:10:21,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 11:12:33,212 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:12:41,323 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:12:49,445 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:12:57,042 WARN L293 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:03,253 WARN L293 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:11,256 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:19,395 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:27,489 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:35,536 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:42,349 WARN L293 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:49,902 WARN L293 SmtUtils]: Spent 7.55s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:13:57,980 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:06,107 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:13,714 WARN L293 SmtUtils]: Spent 7.61s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:19,804 WARN L293 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:27,666 WARN L293 SmtUtils]: Spent 7.86s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:35,798 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:46,513 WARN L293 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:53,540 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:14:58,954 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:07,010 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:15,156 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:23,294 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:31,490 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:39,656 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:47,413 WARN L293 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:55,496 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:15:59,539 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse9 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse10 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0)) (.cse11 ((_ to_fp 8 24) c_currentRoundingMode 1152921504606845700.0))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode .cse11)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse11))) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse10))) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode .cse10)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse9))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode .cse9))) (and (bvsge ((_ sign_extend 24) c_~var_1_3~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) c_~var_1_18~0) (_ bv63 32)) (or (and (fp.geq c_~var_1_11~0 .cse0) (fp.leq c_~var_1_11~0 .cse1)) (and (fp.leq c_~var_1_11~0 .cse2) (fp.geq c_~var_1_11~0 .cse3))) (or (and (fp.leq c_~var_1_12~0 .cse2) (fp.geq c_~var_1_12~0 .cse3)) (and (fp.leq c_~var_1_12~0 .cse1) (fp.geq c_~var_1_12~0 .cse0))) (bvsge ((_ zero_extend 24) c_~var_1_14~0) (_ bv190 32)) (or (and (fp.geq c_~var_1_9~0 .cse4) (fp.leq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 .cse5) (fp.geq c_~var_1_9~0 .cse3))) (let ((.cse6 (fp.add c_currentRoundingMode c_~var_1_11~0 c_~var_1_12~0)) (.cse7 (fp.gt c_~var_1_9~0 c_~var_1_10~0))) (or (and (= c_~var_1_7~0 (fp.add c_currentRoundingMode c_~var_1_8~0 (fp.add c_currentRoundingMode c_~var_1_9~0 .cse6))) .cse7) (and (= c_~var_1_7~0 (fp.add c_currentRoundingMode c_~var_1_8~0 (fp.add c_currentRoundingMode c_~var_1_10~0 .cse6))) (not .cse7)))) (or (and (fp.leq c_~var_1_10~0 .cse1) (fp.geq c_~var_1_10~0 .cse4)) (and (fp.geq c_~var_1_10~0 .cse3) (fp.leq c_~var_1_10~0 .cse5))) (let ((.cse8 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.geq c_~var_1_8~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse8))) (fp.leq c_~var_1_8~0 .cse1)) (and (fp.geq c_~var_1_8~0 .cse3) (fp.leq c_~var_1_8~0 ((_ to_fp 11 53) c_currentRoundingMode .cse8))))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-23 11:16:07,812 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:16:15,966 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:16:23,384 WARN L293 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:16:31,295 WARN L293 SmtUtils]: Spent 7.91s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:16:39,422 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:16:47,524 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:16:54,097 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 11:17:02,213 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 11:17:05,980 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 11:17:05,980 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 [2023-12-23 11:17:07,019 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 11:17:07,192 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 11:17:07,243 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 137 [2023-12-23 11:17:07,246 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 11:17:07,246 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 200 with TraceHistMax 32,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 11:17:07,249 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-23 11:17:07,250 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 11:17:07,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 11:17:07 BoogieIcfgContainer [2023-12-23 11:17:07,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 11:17:07,253 INFO L158 Benchmark]: Toolchain (without parser) took 873951.44ms. Allocated memory was 208.7MB in the beginning and 261.1MB in the end (delta: 52.4MB). Free memory was 147.8MB in the beginning and 136.3MB in the end (delta: 11.6MB). Peak memory consumption was 64.8MB. Max. memory is 8.0GB. [2023-12-23 11:17:07,253 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 208.7MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 11:17:07,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.43ms. Allocated memory is still 208.7MB. Free memory was 147.5MB in the beginning and 131.7MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 11:17:07,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.56ms. Allocated memory is still 208.7MB. Free memory was 131.7MB in the beginning and 129.0MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 11:17:07,254 INFO L158 Benchmark]: Boogie Preprocessor took 70.23ms. Allocated memory is still 208.7MB. Free memory was 129.0MB in the beginning and 125.2MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 11:17:07,254 INFO L158 Benchmark]: RCFGBuilder took 15337.01ms. Allocated memory was 208.7MB in the beginning and 261.1MB in the end (delta: 52.4MB). Free memory was 125.2MB in the beginning and 214.3MB in the end (delta: -89.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 11:17:07,255 INFO L158 Benchmark]: TraceAbstraction took 858150.36ms. Allocated memory is still 261.1MB. Free memory was 213.8MB in the beginning and 136.3MB in the end (delta: 77.5MB). Peak memory consumption was 77.5MB. Max. memory is 8.0GB. [2023-12-23 11:17:07,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 208.7MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.43ms. Allocated memory is still 208.7MB. Free memory was 147.5MB in the beginning and 131.7MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.56ms. Allocated memory is still 208.7MB. Free memory was 131.7MB in the beginning and 129.0MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.23ms. Allocated memory is still 208.7MB. Free memory was 129.0MB in the beginning and 125.2MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 15337.01ms. Allocated memory was 208.7MB in the beginning and 261.1MB in the end (delta: 52.4MB). Free memory was 125.2MB in the beginning and 214.3MB in the end (delta: -89.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 858150.36ms. Allocated memory is still 261.1MB. Free memory was 213.8MB in the beginning and 136.3MB in the end (delta: 77.5MB). Peak memory consumption was 77.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 200 with TraceHistMax 32,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 858.1s, OverallIterations: 3, TraceHistogramMax: 32, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 359.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 194.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 851 SdHoareTripleChecker+Invalid, 190.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 641 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1010 IncrementalHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 210 mSDtfsCounter, 1010 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 655 GetRequests, 606 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 203.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=2, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 84.5s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 593 ConstructedInterpolants, 21 QuantifiedInterpolants, 6543 SizeOfPredicates, 25 NumberOfNonLiveVariables, 958 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 5625/5952 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown