/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:13:26,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:13:26,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:13:26,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:13:26,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:13:26,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:13:26,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:13:26,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:13:26,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:13:26,616 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:13:26,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:13:26,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:13:26,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:13:26,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:13:26,618 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:13:26,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:13:26,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:13:26,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:13:26,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:13:26,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:13:26,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:13:26,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:13:26,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:13:26,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:13:26,620 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:13:26,620 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:13:26,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:13:26,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:13:26,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:13:26,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:13:26,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:13:26,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:13:26,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:13:26,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:13:26,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:13:26,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:13:26,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:13:26,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:13:26,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:13:26,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:13:26,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:13:26,841 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:13:26,842 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:13:26,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2023-12-15 20:13:27,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:13:28,161 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:13:28,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2023-12-15 20:13:28,168 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2509e5f5/239f92e86d244b9191d956169cebf37c/FLAG60d89f096 [2023-12-15 20:13:28,179 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2509e5f5/239f92e86d244b9191d956169cebf37c [2023-12-15 20:13:28,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:13:28,182 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:13:28,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:13:28,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:13:28,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:13:28,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f35be48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28, skipping insertion in model container [2023-12-15 20:13:28,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,228 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:13:28,343 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i[919,932] [2023-12-15 20:13:28,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:13:28,445 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:13:28,454 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i[919,932] [2023-12-15 20:13:28,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:13:28,522 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:13:28,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28 WrapperNode [2023-12-15 20:13:28,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:13:28,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:13:28,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:13:28,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:13:28,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,590 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 318 [2023-12-15 20:13:28,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:13:28,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:13:28,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:13:28,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:13:28,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,631 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]. [2023-12-15 20:13:28,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:13:28,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:13:28,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:13:28,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:13:28,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (1/1) ... [2023-12-15 20:13:28,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:13:28,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:13:28,713 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) [2023-12-15 20:13:28,776 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 [2023-12-15 20:13:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:13:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:13:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:13:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:13:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:13:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:13:28,902 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:13:28,905 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:13:29,448 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:13:29,483 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:13:29,484 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:13:29,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:13:29 BoogieIcfgContainer [2023-12-15 20:13:29,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:13:29,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:13:29,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:13:29,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:13:29,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:13:28" (1/3) ... [2023-12-15 20:13:29,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd3c482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:13:29, skipping insertion in model container [2023-12-15 20:13:29,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:13:28" (2/3) ... [2023-12-15 20:13:29,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd3c482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:13:29, skipping insertion in model container [2023-12-15 20:13:29,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:13:29" (3/3) ... [2023-12-15 20:13:29,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2023-12-15 20:13:29,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:13:29,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:13:29,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:13:29,552 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;@2ad27020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:13:29,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:13:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-15 20:13:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-15 20:13:29,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:13:29,581 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:13:29,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:13:29,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:13:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash -655932038, now seen corresponding path program 1 times [2023-12-15 20:13:29,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:13:29,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876195465] [2023-12-15 20:13:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:13:29,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:13:29,805 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:13:29,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178795415] [2023-12-15 20:13:29,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:13:29,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:13:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:13:29,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:13:29,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:13:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:13:30,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 20:13:30,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:13:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-15 20:13:30,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:13:30,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:13:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876195465] [2023-12-15 20:13:30,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:13:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178795415] [2023-12-15 20:13:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178795415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:13:30,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:13:30,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 20:13:30,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944475753] [2023-12-15 20:13:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:13:30,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 20:13:30,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:13:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 20:13:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:13:30,481 INFO L87 Difference]: Start difference. First operand has 124 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-15 20:13:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:13:30,668 INFO L93 Difference]: Finished difference Result 367 states and 692 transitions. [2023-12-15 20:13:30,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 20:13:30,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258 [2023-12-15 20:13:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:13:30,678 INFO L225 Difference]: With dead ends: 367 [2023-12-15 20:13:30,678 INFO L226 Difference]: Without dead ends: 244 [2023-12-15 20:13:30,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 20:13:30,683 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 185 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:13:30,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 757 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:13:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-15 20:13:30,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 193. [2023-12-15 20:13:30,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 106 states have internal predecessors, (142), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-15 20:13:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2023-12-15 20:13:30,736 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 258 [2023-12-15 20:13:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:13:30,737 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2023-12-15 20:13:30,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-15 20:13:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2023-12-15 20:13:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-15 20:13:30,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:13:30,741 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:13:30,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 20:13:30,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 20:13:30,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:13:30,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:13:30,949 INFO L85 PathProgramCache]: Analyzing trace with hash -545220031, now seen corresponding path program 1 times [2023-12-15 20:13:30,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:13:30,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975388495] [2023-12-15 20:13:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:13:30,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:13:30,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:13:30,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91387320] [2023-12-15 20:13:30,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:13:30,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:13:30,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:13:31,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:13:31,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:13:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:13:31,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-15 20:13:31,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:13:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1777 proven. 249 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2023-12-15 20:13:32,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:13:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 102 proven. 258 refuted. 0 times theorem prover too weak. 3084 trivial. 0 not checked. [2023-12-15 20:13:33,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:13:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975388495] [2023-12-15 20:13:33,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:13:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91387320] [2023-12-15 20:13:33,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91387320] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:13:33,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:13:33,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-12-15 20:13:33,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275897021] [2023-12-15 20:13:33,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:13:33,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-15 20:13:33,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:13:33,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-15 20:13:33,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2023-12-15 20:13:33,049 INFO L87 Difference]: Start difference. First operand 193 states and 310 transitions. Second operand has 34 states, 33 states have (on average 3.242424242424242) internal successors, (107), 32 states have internal predecessors, (107), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) [2023-12-15 20:13:36,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:13:36,456 INFO L93 Difference]: Finished difference Result 859 states and 1366 transitions. [2023-12-15 20:13:36,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-12-15 20:13:36,456 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.242424242424242) internal successors, (107), 32 states have internal predecessors, (107), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) Word has length 259 [2023-12-15 20:13:36,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:13:36,460 INFO L225 Difference]: With dead ends: 859 [2023-12-15 20:13:36,460 INFO L226 Difference]: Without dead ends: 738 [2023-12-15 20:13:36,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2080, Invalid=6662, Unknown=0, NotChecked=0, Total=8742 [2023-12-15 20:13:36,464 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 2039 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 20:13:36,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 2484 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 20:13:36,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-12-15 20:13:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 352. [2023-12-15 20:13:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 248 states have (on average 1.4314516129032258) internal successors, (355), 250 states have internal predecessors, (355), 90 states have call successors, (90), 13 states have call predecessors, (90), 13 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-15 20:13:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 535 transitions. [2023-12-15 20:13:36,503 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 535 transitions. Word has length 259 [2023-12-15 20:13:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:13:36,517 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 535 transitions. [2023-12-15 20:13:36,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.242424242424242) internal successors, (107), 32 states have internal predecessors, (107), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) [2023-12-15 20:13:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 535 transitions. [2023-12-15 20:13:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-15 20:13:36,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:13:36,533 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:13:36,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 20:13:36,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 20:13:36,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:13:36,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:13:36,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1119209151, now seen corresponding path program 1 times [2023-12-15 20:13:36,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:13:36,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635888063] [2023-12-15 20:13:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:13:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:13:36,802 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:13:36,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589559672] [2023-12-15 20:13:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:13:36,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:13:36,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:13:36,841 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:13:36,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:13:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:13:37,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-15 20:13:37,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:13:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1585 proven. 534 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2023-12-15 20:13:43,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-15 20:14:37,429 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 [2023-12-15 20:14:37,429 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:14:38,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 20:14:38,630 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-15 20:14:38,649 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:14:38,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 20:14:38,650 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 260 with TraceHistMax 42,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-15 20:14:38,653 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-15 20:14:38,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-15 20:14:38,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:14:38,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:14:38 BoogieIcfgContainer [2023-12-15 20:14:38,663 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:14:38,665 INFO L158 Benchmark]: Toolchain (without parser) took 70480.99ms. Allocated memory was 219.2MB in the beginning and 966.8MB in the end (delta: 747.6MB). Free memory was 180.1MB in the beginning and 501.5MB in the end (delta: -321.4MB). Peak memory consumption was 579.5MB. Max. memory is 8.0GB. [2023-12-15 20:14:38,665 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:14:38,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.53ms. Allocated memory is still 219.2MB. Free memory was 180.1MB in the beginning and 162.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-15 20:14:38,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.38ms. Allocated memory is still 219.2MB. Free memory was 162.8MB in the beginning and 157.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 20:14:38,666 INFO L158 Benchmark]: Boogie Preprocessor took 76.82ms. Allocated memory is still 219.2MB. Free memory was 157.0MB in the beginning and 148.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-15 20:14:38,666 INFO L158 Benchmark]: RCFGBuilder took 811.24ms. Allocated memory is still 219.2MB. Free memory was 148.6MB in the beginning and 111.4MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-15 20:14:38,666 INFO L158 Benchmark]: TraceAbstraction took 69176.93ms. Allocated memory was 219.2MB in the beginning and 966.8MB in the end (delta: 747.6MB). Free memory was 110.9MB in the beginning and 501.5MB in the end (delta: -390.6MB). Peak memory consumption was 510.3MB. Max. memory is 8.0GB. [2023-12-15 20:14:38,667 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 177.2MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 339.53ms. Allocated memory is still 219.2MB. Free memory was 180.1MB in the beginning and 162.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.38ms. Allocated memory is still 219.2MB. Free memory was 162.8MB in the beginning and 157.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.82ms. Allocated memory is still 219.2MB. Free memory was 157.0MB in the beginning and 148.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 811.24ms. Allocated memory is still 219.2MB. Free memory was 148.6MB in the beginning and 111.4MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 69176.93ms. Allocated memory was 219.2MB in the beginning and 966.8MB in the end (delta: 747.6MB). Free memory was 110.9MB in the beginning and 501.5MB in the end (delta: -390.6MB). Peak memory consumption was 510.3MB. 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 260 with TraceHistMax 42,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.1s, OverallIterations: 3, TraceHistogramMax: 42, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2237 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2224 mSDsluCounter, 3241 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2865 mSDsCounter, 329 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1850 IncrementalHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 329 mSolverCounterUnsat, 376 mSDtfsCounter, 1850 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 842 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2140 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=2, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 437 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 517 NumberOfCodeBlocks, 517 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 773 ConstructedInterpolants, 0 QuantifiedInterpolants, 4235 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1142 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 9825/10332 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