/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-ps-cn_file-59.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:25:36,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:25:36,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:25:36,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:25:36,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:25:36,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:25:36,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:25:36,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:25:36,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:25:36,282 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:25:36,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:25:36,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:25:36,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:25:36,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:25:36,285 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:25:36,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:25:36,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:25:36,285 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:25:36,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:25:36,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:25:36,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:25:36,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:25:36,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:25:36,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:25:36,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:25:36,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:25:36,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:25:36,288 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:25:36,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:25:36,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:25:36,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:25:36,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:25:36,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:25:36,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:25:36,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:25:36,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:25:36,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:25:36,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:25:36,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:25:36,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:25:36,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:25:36,517 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:25:36,518 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:25:36,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-59.i [2023-12-16 03:25:37,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:25:37,985 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:25:37,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-59.i [2023-12-16 03:25:37,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89d4acf92/02cda3fb46a54048b1de00e8c26f4e42/FLAGd5784edc4 [2023-12-16 03:25:38,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89d4acf92/02cda3fb46a54048b1de00e8c26f4e42 [2023-12-16 03:25:38,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:25:38,016 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:25:38,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:25:38,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:25:38,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:25:38,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d9a48d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38, skipping insertion in model container [2023-12-16 03:25:38,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:25:38,205 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-ps-cn_file-59.i[919,932] [2023-12-16 03:25:38,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:25:38,297 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:25:38,307 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-ps-cn_file-59.i[919,932] [2023-12-16 03:25:38,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:25:38,378 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:25:38,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38 WrapperNode [2023-12-16 03:25:38,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:25:38,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:25:38,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:25:38,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:25:38,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,441 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228 [2023-12-16 03:25:38,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:25:38,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:25:38,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:25:38,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:25:38,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,481 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 03:25:38,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:25:38,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:25:38,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:25:38,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:25:38,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (1/1) ... [2023-12-16 03:25:38,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:25:38,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:25:38,561 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 03:25:38,581 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 03:25:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:25:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:25:38,589 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:25:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:25:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:25:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:25:38,702 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:25:38,706 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:25:39,119 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:25:39,172 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:25:39,172 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:25:39,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:25:39 BoogieIcfgContainer [2023-12-16 03:25:39,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:25:39,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:25:39,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:25:39,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:25:39,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:25:38" (1/3) ... [2023-12-16 03:25:39,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a885af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:25:39, skipping insertion in model container [2023-12-16 03:25:39,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:25:38" (2/3) ... [2023-12-16 03:25:39,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a885af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:25:39, skipping insertion in model container [2023-12-16 03:25:39,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:25:39" (3/3) ... [2023-12-16 03:25:39,179 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-59.i [2023-12-16 03:25:39,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:25:39,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:25:39,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:25:39,265 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;@a8f0674, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:25:39,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:25:39,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 57 states have internal predecessors, (82), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 03:25:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 03:25:39,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:25:39,293 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:39,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:25:39,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:25:39,301 INFO L85 PathProgramCache]: Analyzing trace with hash 520456956, now seen corresponding path program 1 times [2023-12-16 03:25:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:25:39,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738876391] [2023-12-16 03:25:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:25:39,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:25:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426413471] [2023-12-16 03:25:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:39,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:39,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:25:39,497 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) [2023-12-16 03:25:39,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:25:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:25:39,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 03:25:39,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:25:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-16 03:25:40,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:25:40,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:25:40,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738876391] [2023-12-16 03:25:40,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:25:40,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426413471] [2023-12-16 03:25:40,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426413471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:25:40,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:25:40,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:25:40,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638680721] [2023-12-16 03:25:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:25:40,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:25:40,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:25:40,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:25:40,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:25:40,115 INFO L87 Difference]: Start difference. First operand has 93 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 57 states have internal predecessors, (82), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 03:25:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:25:40,218 INFO L93 Difference]: Finished difference Result 273 states and 514 transitions. [2023-12-16 03:25:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:25:40,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 211 [2023-12-16 03:25:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:25:40,235 INFO L225 Difference]: With dead ends: 273 [2023-12-16 03:25:40,236 INFO L226 Difference]: Without dead ends: 181 [2023-12-16 03:25:40,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:25:40,245 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 44 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:25:40,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 309 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:25:40,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-16 03:25:40,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2023-12-16 03:25:40,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 108 states have internal predecessors, (149), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 03:25:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 285 transitions. [2023-12-16 03:25:40,352 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 285 transitions. Word has length 211 [2023-12-16 03:25:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:25:40,355 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 285 transitions. [2023-12-16 03:25:40,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 03:25:40,356 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 285 transitions. [2023-12-16 03:25:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-16 03:25:40,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:25:40,367 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:40,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:25:40,577 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 [2023-12-16 03:25:40,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:25:40,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:25:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2085566598, now seen corresponding path program 1 times [2023-12-16 03:25:40,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:25:40,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905019995] [2023-12-16 03:25:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:40,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:25:40,656 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:25:40,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739434167] [2023-12-16 03:25:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:40,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:40,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:25:40,659 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) [2023-12-16 03:25:40,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:25:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:25:40,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 03:25:40,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:25:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-16 03:25:41,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:25:41,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:25:41,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905019995] [2023-12-16 03:25:41,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:25:41,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739434167] [2023-12-16 03:25:41,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739434167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:25:41,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:25:41,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:25:41,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41872533] [2023-12-16 03:25:41,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:25:41,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:25:41,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:25:41,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:25:41,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:25:41,098 INFO L87 Difference]: Start difference. First operand 179 states and 285 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 03:25:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:25:41,263 INFO L93 Difference]: Finished difference Result 477 states and 760 transitions. [2023-12-16 03:25:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:25:41,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 211 [2023-12-16 03:25:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:25:41,270 INFO L225 Difference]: With dead ends: 477 [2023-12-16 03:25:41,270 INFO L226 Difference]: Without dead ends: 299 [2023-12-16 03:25:41,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:25:41,274 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:25:41,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 419 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:25:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-16 03:25:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 265. [2023-12-16 03:25:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 159 states have (on average 1.3647798742138364) internal successors, (217), 159 states have internal predecessors, (217), 102 states have call successors, (102), 3 states have call predecessors, (102), 3 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-16 03:25:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 421 transitions. [2023-12-16 03:25:41,341 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 421 transitions. Word has length 211 [2023-12-16 03:25:41,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:25:41,342 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 421 transitions. [2023-12-16 03:25:41,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 03:25:41,342 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 421 transitions. [2023-12-16 03:25:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 03:25:41,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:25:41,344 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:41,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 03:25:41,551 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 [2023-12-16 03:25:41,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:25:41,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:25:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash 244716167, now seen corresponding path program 1 times [2023-12-16 03:25:41,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:25:41,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285200610] [2023-12-16 03:25:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:41,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:25:41,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:25:41,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293012882] [2023-12-16 03:25:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:41,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:25:41,596 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) [2023-12-16 03:25:41,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:25:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:25:41,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 03:25:41,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:25:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 399 proven. 90 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2023-12-16 03:25:42,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:25:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 9 proven. 90 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-16 03:25:43,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:25:43,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285200610] [2023-12-16 03:25:43,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:25:43,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293012882] [2023-12-16 03:25:43,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293012882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:25:43,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:25:43,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-16 03:25:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189503525] [2023-12-16 03:25:43,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:25:43,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 03:25:43,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:25:43,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 03:25:43,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-16 03:25:43,450 INFO L87 Difference]: Start difference. First operand 265 states and 421 transitions. Second operand has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) [2023-12-16 03:25:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:25:44,520 INFO L93 Difference]: Finished difference Result 527 states and 827 transitions. [2023-12-16 03:25:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 03:25:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) Word has length 212 [2023-12-16 03:25:44,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:25:44,523 INFO L225 Difference]: With dead ends: 527 [2023-12-16 03:25:44,523 INFO L226 Difference]: Without dead ends: 349 [2023-12-16 03:25:44,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-12-16 03:25:44,525 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 696 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 03:25:44,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 458 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 03:25:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-16 03:25:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 315. [2023-12-16 03:25:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 200 states have (on average 1.37) internal successors, (274), 202 states have internal predecessors, (274), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 106 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-16 03:25:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 490 transitions. [2023-12-16 03:25:44,572 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 490 transitions. Word has length 212 [2023-12-16 03:25:44,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:25:44,572 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 490 transitions. [2023-12-16 03:25:44,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) [2023-12-16 03:25:44,573 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 490 transitions. [2023-12-16 03:25:44,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 03:25:44,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:25:44,575 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:44,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 03:25:44,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:44,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:25:44,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:25:44,787 INFO L85 PathProgramCache]: Analyzing trace with hash -456348411, now seen corresponding path program 1 times [2023-12-16 03:25:44,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:25:44,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228661551] [2023-12-16 03:25:44,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:44,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:25:44,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:25:44,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926063513] [2023-12-16 03:25:44,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:44,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:44,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:25:44,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:25:44,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:25:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:25:45,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 03:25:45,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:25:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-16 03:25:45,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:25:45,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:25:45,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228661551] [2023-12-16 03:25:45,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:25:45,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926063513] [2023-12-16 03:25:45,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926063513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:25:45,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:25:45,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 03:25:45,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34895256] [2023-12-16 03:25:45,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:25:45,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:25:45,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:25:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:25:45,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:25:45,280 INFO L87 Difference]: Start difference. First operand 315 states and 490 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 03:25:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:25:45,604 INFO L93 Difference]: Finished difference Result 743 states and 1151 transitions. [2023-12-16 03:25:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 03:25:45,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 212 [2023-12-16 03:25:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:25:45,610 INFO L225 Difference]: With dead ends: 743 [2023-12-16 03:25:45,610 INFO L226 Difference]: Without dead ends: 537 [2023-12-16 03:25:45,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-16 03:25:45,614 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 149 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:25:45,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 603 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:25:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-16 03:25:45,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 519. [2023-12-16 03:25:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 326 states have (on average 1.3404907975460123) internal successors, (437), 330 states have internal predecessors, (437), 182 states have call successors, (182), 10 states have call predecessors, (182), 10 states have return successors, (182), 178 states have call predecessors, (182), 182 states have call successors, (182) [2023-12-16 03:25:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 801 transitions. [2023-12-16 03:25:45,720 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 801 transitions. Word has length 212 [2023-12-16 03:25:45,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:25:45,721 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 801 transitions. [2023-12-16 03:25:45,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-16 03:25:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 801 transitions. [2023-12-16 03:25:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-16 03:25:45,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:25:45,723 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:45,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:25:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:45,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:25:45,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:25:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash 385572421, now seen corresponding path program 1 times [2023-12-16 03:25:45,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:25:45,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650697231] [2023-12-16 03:25:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:25:45,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:25:45,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215940713] [2023-12-16 03:25:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:25:45,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:45,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:25:45,983 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:25:45,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:25:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:25:46,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 03:25:46,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:25:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 429 proven. 405 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2023-12-16 03:25:48,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:26:00,965 WARN L293 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-16 03:26:40,290 WARN L293 SmtUtils]: Spent 15.39s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-16 03:26:50,331 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:26:50,341 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 03:26:51,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:26:51,542 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 [2023-12-16 03:26:51,549 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 [2023-12-16 03:26:51,550 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:26:51,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 03:26:51,551 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 214 with TraceHistMax 34,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-16 03:26:51,554 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 03:26:51,556 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:26:51,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:26:51 BoogieIcfgContainer [2023-12-16 03:26:51,558 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:26:51,558 INFO L158 Benchmark]: Toolchain (without parser) took 73542.13ms. Allocated memory was 203.4MB in the beginning and 332.4MB in the end (delta: 129.0MB). Free memory was 156.6MB in the beginning and 161.5MB in the end (delta: -4.9MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. [2023-12-16 03:26:51,559 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 203.4MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:26:51,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.53ms. Allocated memory is still 203.4MB. Free memory was 156.2MB in the beginning and 140.1MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 03:26:51,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.45ms. Allocated memory is still 203.4MB. Free memory was 140.1MB in the beginning and 135.3MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 03:26:51,561 INFO L158 Benchmark]: Boogie Preprocessor took 79.23ms. Allocated memory is still 203.4MB. Free memory was 135.3MB in the beginning and 127.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 03:26:51,561 INFO L158 Benchmark]: RCFGBuilder took 650.18ms. Allocated memory is still 203.4MB. Free memory was 127.9MB in the beginning and 153.6MB in the end (delta: -25.7MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2023-12-16 03:26:51,561 INFO L158 Benchmark]: TraceAbstraction took 72383.57ms. Allocated memory was 203.4MB in the beginning and 332.4MB in the end (delta: 129.0MB). Free memory was 152.5MB in the beginning and 161.5MB in the end (delta: -8.9MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. [2023-12-16 03:26:51,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 203.4MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.53ms. Allocated memory is still 203.4MB. Free memory was 156.2MB in the beginning and 140.1MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.45ms. Allocated memory is still 203.4MB. Free memory was 140.1MB in the beginning and 135.3MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.23ms. Allocated memory is still 203.4MB. Free memory was 135.3MB in the beginning and 127.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 650.18ms. Allocated memory is still 203.4MB. Free memory was 127.9MB in the beginning and 153.6MB in the end (delta: -25.7MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * TraceAbstraction took 72383.57ms. Allocated memory was 203.4MB in the beginning and 332.4MB in the end (delta: 129.0MB). Free memory was 152.5MB in the beginning and 161.5MB in the end (delta: -8.9MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 214 with TraceHistMax 34,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.3s, OverallIterations: 5, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 983 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 983 mSDsluCounter, 1789 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1241 mSDsCounter, 629 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 629 mSolverCounterUnsat, 548 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1077 GetRequests, 1036 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=519occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 88 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 846 NumberOfCodeBlocks, 846 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1053 ConstructedInterpolants, 0 QuantifiedInterpolants, 5596 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1994 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 11040/11220 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