/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_codestructure_steplocals_file-72.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 10:31:19,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 10:31:19,671 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 10:31:19,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 10:31:19,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 10:31:19,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 10:31:19,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 10:31:19,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 10:31:19,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 10:31:19,701 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 10:31:19,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 10:31:19,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 10:31:19,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 10:31:19,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 10:31:19,703 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 10:31:19,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 10:31:19,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 10:31:19,704 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 10:31:19,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 10:31:19,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 10:31:19,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 10:31:19,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 10:31:19,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 10:31:19,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 10:31:19,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 10:31:19,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 10:31:19,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:31:19,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 10:31:19,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 10:31:19,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 10:31:19,709 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 10:31:19,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 10:31:19,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 10:31:19,709 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 10:31:19,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 10:31:19,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 10:31:19,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 10:31:19,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 10:31:19,930 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 10:31:19,930 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 10:31:19,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_steplocals_file-72.i [2023-12-16 10:31:20,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 10:31:21,134 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 10:31:21,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_steplocals_file-72.i [2023-12-16 10:31:21,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef8932e/6b19f95f64ae450ea872535857f49d2f/FLAG039c27f4b [2023-12-16 10:31:21,168 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef8932e/6b19f95f64ae450ea872535857f49d2f [2023-12-16 10:31:21,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 10:31:21,171 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 10:31:21,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 10:31:21,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 10:31:21,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 10:31:21,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3026a20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21, skipping insertion in model container [2023-12-16 10:31:21,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,208 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 10:31:21,327 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_codestructure_steplocals_file-72.i[917,930] [2023-12-16 10:31:21,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:31:21,411 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 10:31:21,421 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_codestructure_steplocals_file-72.i[917,930] [2023-12-16 10:31:21,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:31:21,475 INFO L206 MainTranslator]: Completed translation [2023-12-16 10:31:21,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21 WrapperNode [2023-12-16 10:31:21,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 10:31:21,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 10:31:21,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 10:31:21,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 10:31:21,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,529 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2023-12-16 10:31:21,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 10:31:21,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 10:31:21,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 10:31:21,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 10:31:21,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,557 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 10:31:21,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 10:31:21,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 10:31:21,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 10:31:21,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 10:31:21,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (1/1) ... [2023-12-16 10:31:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:31:21,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 10:31:21,615 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 10:31:21,635 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 10:31:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 10:31:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 10:31:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 10:31:21,653 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 10:31:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 10:31:21,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 10:31:21,738 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 10:31:21,741 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 10:31:35,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 10:31:35,255 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 10:31:35,256 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 10:31:35,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:31:35 BoogieIcfgContainer [2023-12-16 10:31:35,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 10:31:35,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 10:31:35,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 10:31:35,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 10:31:35,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:31:21" (1/3) ... [2023-12-16 10:31:35,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42443f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:31:35, skipping insertion in model container [2023-12-16 10:31:35,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:31:21" (2/3) ... [2023-12-16 10:31:35,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42443f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:31:35, skipping insertion in model container [2023-12-16 10:31:35,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:31:35" (3/3) ... [2023-12-16 10:31:35,263 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-72.i [2023-12-16 10:31:35,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 10:31:35,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 10:31:35,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 10:31:35,330 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;@7218d191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 10:31:35,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 10:31:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 10:31:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-16 10:31:35,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:31:35,348 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:35,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:31:35,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:31:35,352 INFO L85 PathProgramCache]: Analyzing trace with hash 776048479, now seen corresponding path program 1 times [2023-12-16 10:31:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:31:35,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869802665] [2023-12-16 10:31:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:31:35,362 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 10:31:35,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:31:35,364 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 10:31:35,400 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 10:31:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:31:35,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 10:31:35,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:31:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1310 proven. 0 refuted. 0 times theorem prover too weak. 1810 trivial. 0 not checked. [2023-12-16 10:31:35,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:31:35,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:31:35,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869802665] [2023-12-16 10:31:35,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869802665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:31:35,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:31:35,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 10:31:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531381149] [2023-12-16 10:31:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:31:35,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 10:31:35,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:31:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 10:31:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 10:31:35,934 INFO L87 Difference]: Start difference. First operand has 86 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 10:31:40,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:31:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:31:40,124 INFO L93 Difference]: Finished difference Result 169 states and 312 transitions. [2023-12-16 10:31:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 10:31:40,184 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 234 [2023-12-16 10:31:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:31:40,189 INFO L225 Difference]: With dead ends: 169 [2023-12-16 10:31:40,189 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 10:31:40,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 233 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 10:31:40,196 INFO L413 NwaCegarLoop]: 129 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, 129 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 [2023-12-16 10:31:40,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 10:31:40,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 10:31:40,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-16 10:31:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 42 states have internal predecessors, (52), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 10:31:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 132 transitions. [2023-12-16 10:31:40,235 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 132 transitions. Word has length 234 [2023-12-16 10:31:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:31:40,235 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 132 transitions. [2023-12-16 10:31:40,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-16 10:31:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 132 transitions. [2023-12-16 10:31:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-16 10:31:40,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:31:40,239 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:40,255 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 10:31:40,452 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 10:31:40,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:31:40,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:31:40,453 INFO L85 PathProgramCache]: Analyzing trace with hash 411403035, now seen corresponding path program 1 times [2023-12-16 10:31:40,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:31:40,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591229061] [2023-12-16 10:31:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:31:40,454 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 10:31:40,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:31:40,455 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 10:31:40,457 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 10:31:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:31:40,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:31:41,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:31:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1527 proven. 45 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2023-12-16 10:31:41,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:31:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 72 proven. 45 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2023-12-16 10:31:42,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:31:42,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591229061] [2023-12-16 10:31:42,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591229061] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:31:42,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 10:31:42,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 10:31:42,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805591484] [2023-12-16 10:31:42,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 10:31:42,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 10:31:42,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:31:42,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 10:31:42,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:31:42,117 INFO L87 Difference]: Start difference. First operand 84 states and 132 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-16 10:31:47,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:31:51,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:31:52,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:31:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:31:53,165 INFO L93 Difference]: Finished difference Result 214 states and 333 transitions. [2023-12-16 10:31:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 10:31:53,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 234 [2023-12-16 10:31:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:31:53,169 INFO L225 Difference]: With dead ends: 214 [2023-12-16 10:31:53,169 INFO L226 Difference]: Without dead ends: 131 [2023-12-16 10:31:53,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 460 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 10:31:53,170 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 130 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 109 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-12-16 10:31:53,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 246 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 328 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2023-12-16 10:31:53,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-16 10:31:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2023-12-16 10:31:53,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-16 10:31:53,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 196 transitions. [2023-12-16 10:31:53,187 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 196 transitions. Word has length 234 [2023-12-16 10:31:53,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:31:53,187 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 196 transitions. [2023-12-16 10:31:53,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-16 10:31:53,188 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 196 transitions. [2023-12-16 10:31:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-16 10:31:53,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:31:53,196 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:31:53,209 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 10:31:53,409 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 10:31:53,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:31:53,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:31:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash 468661337, now seen corresponding path program 1 times [2023-12-16 10:31:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:31:53,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030702886] [2023-12-16 10:31:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:31:53,411 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 10:31:53,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:31:53,412 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 10:31:53,431 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 10:31:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:31:53,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 10:31:53,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:32:14,050 WARN L293 SmtUtils]: Spent 6.68s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-16 10:32:18,940 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 127.0 2.0)))) (let ((.cse1 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 12.0 5.0)) c_~var_1_3~0)) (.cse0 (fp.lt c_~var_1_2~0 .cse2))) (and (= (bvadd c_~var_1_1~0 (_ bv50 16)) (_ bv0 16)) (or (not .cse0) (not (fp.gt c_~var_1_2~0 .cse1))) (bvsge ((_ zero_extend 24) c_~var_1_18~0) (_ bv1 32)) (or (not (fp.gt .cse2 .cse1)) .cse0)))) is different from true Received shutdown request... [2023-12-16 10:32:42,167 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 10:32:42,171 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:32:43,202 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 10:32:43,285 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 10:32:43,285 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 235 with TraceHistMax 40,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 10:32:43,288 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 10:32:43,289 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 10:32:43,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:32:43 BoogieIcfgContainer [2023-12-16 10:32:43,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 10:32:43,292 INFO L158 Benchmark]: Toolchain (without parser) took 82120.57ms. Allocated memory is still 292.6MB. Free memory was 245.1MB in the beginning and 138.2MB in the end (delta: 106.9MB). Peak memory consumption was 107.9MB. Max. memory is 8.0GB. [2023-12-16 10:32:43,292 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 189.8MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 10:32:43,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.55ms. Allocated memory is still 292.6MB. Free memory was 244.6MB in the beginning and 229.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 10:32:43,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.41ms. Allocated memory is still 292.6MB. Free memory was 229.4MB in the beginning and 226.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 10:32:43,293 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 292.6MB. Free memory was 226.7MB in the beginning and 223.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 10:32:43,293 INFO L158 Benchmark]: RCFGBuilder took 13683.81ms. Allocated memory is still 292.6MB. Free memory was 223.1MB in the beginning and 195.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-16 10:32:43,293 INFO L158 Benchmark]: TraceAbstraction took 68033.19ms. Allocated memory is still 292.6MB. Free memory was 195.3MB in the beginning and 138.2MB in the end (delta: 57.0MB). Peak memory consumption was 57.6MB. Max. memory is 8.0GB. [2023-12-16 10:32:43,295 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 189.8MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 303.55ms. Allocated memory is still 292.6MB. Free memory was 244.6MB in the beginning and 229.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.41ms. Allocated memory is still 292.6MB. Free memory was 229.4MB in the beginning and 226.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.92ms. Allocated memory is still 292.6MB. Free memory was 226.7MB in the beginning and 223.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 13683.81ms. Allocated memory is still 292.6MB. Free memory was 223.1MB in the beginning and 195.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 68033.19ms. Allocated memory is still 292.6MB. Free memory was 195.3MB in the beginning and 138.2MB in the end (delta: 57.0MB). Peak memory consumption was 57.6MB. 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 235 with TraceHistMax 40,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.0s, OverallIterations: 3, TraceHistogramMax: 40, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 15.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 375 SdHoareTripleChecker+Invalid, 14.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 254 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 703 GetRequests, 693 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=2, 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 1082 SizeOfPredicates, 1 NumberOfNonLiveVariables, 736 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 9270/9360 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