/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 21:09:02,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 21:09:02,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 21:09:02,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 21:09:02,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 21:09:02,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 21:09:02,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 21:09:02,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 21:09:02,393 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 21:09:02,396 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 21:09:02,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 21:09:02,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 21:09:02,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 21:09:02,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 21:09:02,398 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 21:09:02,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 21:09:02,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 21:09:02,398 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 21:09:02,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 21:09:02,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 21:09:02,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 21:09:02,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 21:09:02,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 21:09:02,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 21:09:02,400 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 21:09:02,400 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 21:09:02,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 21:09:02,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 21:09:02,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 21:09:02,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 21:09:02,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 21:09:02,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 21:09:02,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 21:09:02,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 21:09:02,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 21:09:02,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 21:09:02,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 21:09:02,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 21:09:02,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 21:09:02,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 21:09:02,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 21:09:02,604 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 21:09:02,604 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 21:09:02,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i [2023-12-20 21:09:03,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 21:09:03,817 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 21:09:03,817 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i [2023-12-20 21:09:03,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8fed9e41/d80b31786a584e3e874c3e4a0ecea367/FLAG62e53f6c4 [2023-12-20 21:09:03,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8fed9e41/d80b31786a584e3e874c3e4a0ecea367 [2023-12-20 21:09:03,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 21:09:03,840 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 21:09:03,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 21:09:03,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 21:09:03,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 21:09:03,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:09:03" (1/1) ... [2023-12-20 21:09:03,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a2c73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:03, skipping insertion in model container [2023-12-20 21:09:03,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:09:03" (1/1) ... [2023-12-20 21:09:03,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 21:09:03,978 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i[919,932] [2023-12-20 21:09:04,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 21:09:04,041 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 21:09:04,048 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i[919,932] [2023-12-20 21:09:04,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 21:09:04,082 INFO L206 MainTranslator]: Completed translation [2023-12-20 21:09:04,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04 WrapperNode [2023-12-20 21:09:04,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 21:09:04,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 21:09:04,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 21:09:04,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 21:09:04,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,126 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249 [2023-12-20 21:09:04,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 21:09:04,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 21:09:04,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 21:09:04,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 21:09:04,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,144 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,163 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]. [2023-12-20 21:09:04,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 21:09:04,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 21:09:04,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 21:09:04,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 21:09:04,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (1/1) ... [2023-12-20 21:09:04,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 21:09:04,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:09:04,215 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) [2023-12-20 21:09:04,262 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 [2023-12-20 21:09:04,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 21:09:04,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 21:09:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 21:09:04,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 21:09:04,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 21:09:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 21:09:04,355 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 21:09:04,357 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 21:09:04,722 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 21:09:04,762 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 21:09:04,762 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 21:09:04,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:09:04 BoogieIcfgContainer [2023-12-20 21:09:04,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 21:09:04,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 21:09:04,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 21:09:04,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 21:09:04,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 09:09:03" (1/3) ... [2023-12-20 21:09:04,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491bb94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:09:04, skipping insertion in model container [2023-12-20 21:09:04,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:09:04" (2/3) ... [2023-12-20 21:09:04,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491bb94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:09:04, skipping insertion in model container [2023-12-20 21:09:04,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:09:04" (3/3) ... [2023-12-20 21:09:04,769 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-58.i [2023-12-20 21:09:04,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 21:09:04,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 21:09:04,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 21:09:04,825 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;@50a11c36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 21:09:04,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 21:09:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-20 21:09:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-20 21:09:04,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:09:04,847 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:09:04,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:09:04,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:09:04,854 INFO L85 PathProgramCache]: Analyzing trace with hash -587764177, now seen corresponding path program 1 times [2023-12-20 21:09:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:09:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512982053] [2023-12-20 21:09:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:09:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:09:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:09:05,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:09:05,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512982053] [2023-12-20 21:09:05,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 21:09:05,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901648282] [2023-12-20 21:09:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:09:05,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:09:05,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:09:05,059 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) [2023-12-20 21:09:05,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 21:09:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:09:05,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 21:09:05,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 21:09:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2023-12-20 21:09:05,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 21:09:05,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901648282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 21:09:05,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 21:09:05,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 21:09:05,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599059140] [2023-12-20 21:09:05,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 21:09:05,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 21:09:05,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:09:05,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 21:09:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 21:09:05,299 INFO L87 Difference]: Start difference. First operand has 101 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-20 21:09:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:09:05,351 INFO L93 Difference]: Finished difference Result 199 states and 373 transitions. [2023-12-20 21:09:05,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 21:09:05,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 257 [2023-12-20 21:09:05,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:09:05,359 INFO L225 Difference]: With dead ends: 199 [2023-12-20 21:09:05,359 INFO L226 Difference]: Without dead ends: 99 [2023-12-20 21:09:05,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 21:09:05,367 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 21:09:05,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 21:09:05,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-20 21:09:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-12-20 21:09:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-20 21:09:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 161 transitions. [2023-12-20 21:09:05,415 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 161 transitions. Word has length 257 [2023-12-20 21:09:05,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:09:05,416 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 161 transitions. [2023-12-20 21:09:05,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-20 21:09:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 161 transitions. [2023-12-20 21:09:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-20 21:09:05,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:09:05,420 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:09:05,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 21:09:05,626 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 [2023-12-20 21:09:05,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:09:05,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:09:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1601359435, now seen corresponding path program 1 times [2023-12-20 21:09:05,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:09:05,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578746440] [2023-12-20 21:09:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:09:05,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:09:05,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 21:09:05,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259766349] [2023-12-20 21:09:05,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:09:05,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:09:05,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:09:05,695 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) [2023-12-20 21:09:05,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 21:09:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:09:05,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-20 21:09:05,831 INFO L285 TraceCheckSpWp]: Computing forward predicates...