/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_amount50_file-79.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:14:26,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:14:26,852 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 15:14:26,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:14:26,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:14:26,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:14:26,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:14:26,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:14:26,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:14:26,884 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:14:26,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:14:26,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:14:26,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:14:26,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:14:26,886 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:14:26,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:14:26,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:14:26,886 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:14:26,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:14:26,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:14:26,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:14:26,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:14:26,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:14:26,887 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:14:26,887 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:14:26,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:14:26,888 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:14:26,888 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:14:26,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:14:26,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:14:26,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:14:26,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:14:26,889 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:14:26,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:14:26,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:14:26,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:14:26,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:14:26,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:14:26,891 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:14:26,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:14:27,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:14:27,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:14:27,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:14:27,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:14:27,068 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:14:27,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i [2023-12-16 15:14:28,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:14:28,267 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:14:28,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i [2023-12-16 15:14:28,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79ef2bb5/928d1b582aa04cf5b6c8a45dbb0a6258/FLAG749df2e8e [2023-12-16 15:14:28,284 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79ef2bb5/928d1b582aa04cf5b6c8a45dbb0a6258 [2023-12-16 15:14:28,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:14:28,287 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:14:28,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:14:28,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:14:28,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:14:28,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a34269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28, skipping insertion in model container [2023-12-16 15:14:28,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:14:28,414 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_amount50_file-79.i[915,928] [2023-12-16 15:14:28,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:14:28,466 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:14:28,475 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_amount50_file-79.i[915,928] [2023-12-16 15:14:28,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:14:28,508 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:14:28,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28 WrapperNode [2023-12-16 15:14:28,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:14:28,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:14:28,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:14:28,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:14:28,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,546 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 163 [2023-12-16 15:14:28,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:14:28,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:14:28,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:14:28,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:14:28,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,577 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 15:14:28,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:14:28,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:14:28,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:14:28,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:14:28,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (1/1) ... [2023-12-16 15:14:28,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:14:28,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:14:28,635 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 15:14:28,649 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 15:14:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:14:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:14:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:14:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:14:28,722 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:14:28,724 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:14:34,735 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:14:34,783 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:14:34,783 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:14:34,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:14:34 BoogieIcfgContainer [2023-12-16 15:14:34,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:14:34,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:14:34,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:14:34,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:14:34,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:14:28" (1/3) ... [2023-12-16 15:14:34,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fae6d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:14:34, skipping insertion in model container [2023-12-16 15:14:34,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:14:28" (2/3) ... [2023-12-16 15:14:34,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fae6d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:14:34, skipping insertion in model container [2023-12-16 15:14:34,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:14:34" (3/3) ... [2023-12-16 15:14:34,796 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-79.i [2023-12-16 15:14:34,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:14:34,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:14:34,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:14:34,864 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;@5c84481b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:14:34,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:14:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:14:34,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 15:14:34,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:34,889 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:34,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:34,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash -485697846, now seen corresponding path program 1 times [2023-12-16 15:14:34,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:34,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646851563] [2023-12-16 15:14:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:34,910 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 15:14:34,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:34,912 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 15:14:34,960 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 15:14:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:35,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:14:35,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 15:14:35,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:35,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:35,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646851563] [2023-12-16 15:14:35,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646851563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:35,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:14:35,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:14:35,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430073727] [2023-12-16 15:14:35,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:35,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:14:35,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:14:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:14:35,423 INFO L87 Difference]: Start difference. First operand has 66 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:14:39,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:14:39,209 INFO L93 Difference]: Finished difference Result 129 states and 229 transitions. [2023-12-16 15:14:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:14:39,256 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 154 [2023-12-16 15:14:39,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:14:39,261 INFO L225 Difference]: With dead ends: 129 [2023-12-16 15:14:39,261 INFO L226 Difference]: Without dead ends: 64 [2023-12-16 15:14:39,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 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 15:14:39,266 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:14:39,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-16 15:14:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-16 15:14:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-16 15:14:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 15:14:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 98 transitions. [2023-12-16 15:14:39,300 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 98 transitions. Word has length 154 [2023-12-16 15:14:39,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:14:39,301 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 98 transitions. [2023-12-16 15:14:39,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 15:14:39,301 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 98 transitions. [2023-12-16 15:14:39,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 15:14:39,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:39,303 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:39,328 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 [2023-12-16 15:14:39,518 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 15:14:39,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:39,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:39,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1281903464, now seen corresponding path program 1 times [2023-12-16 15:14:39,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:39,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079768162] [2023-12-16 15:14:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:39,520 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 15:14:39,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:39,521 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 15:14:39,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 15:14:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:39,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:14:39,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 15:14:40,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:40,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:40,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079768162] [2023-12-16 15:14:40,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079768162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:40,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:14:40,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:14:40,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744467715] [2023-12-16 15:14:40,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:40,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:14:40,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:40,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:14:40,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:14:40,591 INFO L87 Difference]: Start difference. First operand 64 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:14:44,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:45,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:14:45,846 INFO L93 Difference]: Finished difference Result 204 states and 312 transitions. [2023-12-16 15:14:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:14:45,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 154 [2023-12-16 15:14:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:14:45,886 INFO L225 Difference]: With dead ends: 204 [2023-12-16 15:14:45,886 INFO L226 Difference]: Without dead ends: 141 [2023-12-16 15:14:45,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:14:45,887 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 119 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:14:45,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 295 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-16 15:14:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-16 15:14:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 125. [2023-12-16 15:14:45,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 72 states have internal predecessors, (91), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 15:14:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 191 transitions. [2023-12-16 15:14:45,920 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 191 transitions. Word has length 154 [2023-12-16 15:14:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:14:45,921 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 191 transitions. [2023-12-16 15:14:45,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:14:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 191 transitions. [2023-12-16 15:14:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 15:14:45,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:45,923 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:45,936 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 [2023-12-16 15:14:46,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:14:46,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:46,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1957339137, now seen corresponding path program 1 times [2023-12-16 15:14:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:46,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364090678] [2023-12-16 15:14:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:46,136 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 15:14:46,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:46,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 15:14:46,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 15:14:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:46,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 15:14:46,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:14:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-16 15:14:46,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:14:46,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:14:46,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364090678] [2023-12-16 15:14:46,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364090678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:14:46,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:14:46,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 15:14:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444868116] [2023-12-16 15:14:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:14:46,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 15:14:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:14:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 15:14:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 15:14:46,538 INFO L87 Difference]: Start difference. First operand 125 states and 191 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:14:50,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:14:50,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:14:50,223 INFO L93 Difference]: Finished difference Result 264 states and 398 transitions. [2023-12-16 15:14:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 15:14:50,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 156 [2023-12-16 15:14:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:14:50,225 INFO L225 Difference]: With dead ends: 264 [2023-12-16 15:14:50,226 INFO L226 Difference]: Without dead ends: 140 [2023-12-16 15:14:50,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 15:14:50,227 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 33 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-16 15:14:50,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 170 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-16 15:14:50,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-16 15:14:50,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2023-12-16 15:14:50,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 80 states have (on average 1.2125) internal successors, (97), 81 states have internal predecessors, (97), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 15:14:50,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 205 transitions. [2023-12-16 15:14:50,269 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 205 transitions. Word has length 156 [2023-12-16 15:14:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:14:50,269 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 205 transitions. [2023-12-16 15:14:50,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-16 15:14:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 205 transitions. [2023-12-16 15:14:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 15:14:50,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:14:50,271 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:14:50,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 15:14:50,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:14:50,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:14:50,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:14:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash 791275301, now seen corresponding path program 1 times [2023-12-16 15:14:50,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:14:50,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708453044] [2023-12-16 15:14:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:14:50,474 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 15:14:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:14:50,479 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 15:14:50,480 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 15:14:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:14:50,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 15:14:50,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 15:15:46,386 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 15:15:46,387 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 [2023-12-16 15:15:47,092 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:15:47,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 15:15:47,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:15:47,294 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 158 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-10-2-2-2-2-2-2-1 context. [2023-12-16 15:15:47,297 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 15:15:47,299 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:15:47,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:15:47 BoogieIcfgContainer [2023-12-16 15:15:47,301 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:15:47,301 INFO L158 Benchmark]: Toolchain (without parser) took 79014.16ms. Allocated memory is still 251.7MB. Free memory was 198.1MB in the beginning and 138.6MB in the end (delta: 59.5MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. [2023-12-16 15:15:47,302 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory was 122.2MB in the beginning and 122.2MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:15:47,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.58ms. Allocated memory is still 251.7MB. Free memory was 197.6MB in the beginning and 182.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 15:15:47,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.52ms. Allocated memory is still 251.7MB. Free memory was 182.8MB in the beginning and 180.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 15:15:47,302 INFO L158 Benchmark]: Boogie Preprocessor took 49.90ms. Allocated memory is still 251.7MB. Free memory was 180.3MB in the beginning and 176.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 15:15:47,303 INFO L158 Benchmark]: RCFGBuilder took 6186.46ms. Allocated memory is still 251.7MB. Free memory was 176.5MB in the beginning and 153.6MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 15:15:47,306 INFO L158 Benchmark]: TraceAbstraction took 72515.45ms. Allocated memory is still 251.7MB. Free memory was 153.0MB in the beginning and 138.6MB in the end (delta: 14.4MB). Peak memory consumption was 79.3MB. Max. memory is 8.0GB. [2023-12-16 15:15:47,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory was 122.2MB in the beginning and 122.2MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 220.58ms. Allocated memory is still 251.7MB. Free memory was 197.6MB in the beginning and 182.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.52ms. Allocated memory is still 251.7MB. Free memory was 182.8MB in the beginning and 180.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.90ms. Allocated memory is still 251.7MB. Free memory was 180.3MB in the beginning and 176.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 6186.46ms. Allocated memory is still 251.7MB. Free memory was 176.5MB in the beginning and 153.6MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 72515.45ms. Allocated memory is still 251.7MB. Free memory was 153.0MB in the beginning and 138.6MB in the end (delta: 14.4MB). Peak memory consumption was 79.3MB. 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 158 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-10-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.5s, OverallIterations: 4, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 12.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 560 SdHoareTripleChecker+Invalid, 12.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 271 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 289 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 463 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=3, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 461 ConstructedInterpolants, 0 QuantifiedInterpolants, 757 SizeOfPredicates, 3 NumberOfNonLiveVariables, 765 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3600/3600 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