/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-36.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:31:18,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:31:18,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:31:18,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:31:18,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:31:18,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:31:18,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:31:18,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:31:18,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:31:18,588 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:31:18,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:31:18,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:31:18,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:31:18,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:31:18,591 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:31:18,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:31:18,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:31:18,591 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:31:18,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:31:18,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:31:18,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:31:18,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:31:18,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:31:18,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:31:18,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:31:18,593 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:31:18,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:31:18,594 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:31:18,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:31:18,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:31:18,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:31:18,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:31:18,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:31:18,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:31:18,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:31:18,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:31:18,597 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:31:18,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:31:18,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:31:18,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:31:18,830 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:31:18,830 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:31:18,831 INFO L431 ainManager$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-36.i [2023-12-15 20:31:19,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:31:19,997 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:31:19,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-36.i [2023-12-15 20:31:20,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e46c3d3f/7c31a4eb42594aeeb6b0dd266ded2f56/FLAGdd97060c1 [2023-12-15 20:31:20,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e46c3d3f/7c31a4eb42594aeeb6b0dd266ded2f56 [2023-12-15 20:31:20,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:31:20,025 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:31:20,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:31:20,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:31:20,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:31:20,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672ab9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20, skipping insertion in model container [2023-12-15 20:31:20,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,067 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:31:20,158 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-36.i[919,932] [2023-12-15 20:31:20,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:31:20,234 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:31:20,242 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-36.i[919,932] [2023-12-15 20:31:20,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:31:20,282 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:31:20,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20 WrapperNode [2023-12-15 20:31:20,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:31:20,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:31:20,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:31:20,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:31:20,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,345 INFO L138 Inliner]: procedures = 26, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 284 [2023-12-15 20:31:20,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:31:20,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:31:20,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:31:20,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:31:20,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,379 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 20:31:20,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:31:20,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:31:20,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:31:20,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:31:20,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (1/1) ... [2023-12-15 20:31:20,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:31:20,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:31:20,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 20:31:20,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 20:31:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:31:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:31:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:31:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:31:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:31:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:31:20,564 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:31:20,565 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:31:20,912 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:31:20,944 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:31:20,945 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:31:20,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:31:20 BoogieIcfgContainer [2023-12-15 20:31:20,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:31:20,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:31:20,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:31:20,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:31:20,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:31:20" (1/3) ... [2023-12-15 20:31:20,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bd7f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:31:20, skipping insertion in model container [2023-12-15 20:31:20,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:31:20" (2/3) ... [2023-12-15 20:31:20,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54bd7f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:31:20, skipping insertion in model container [2023-12-15 20:31:20,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:31:20" (3/3) ... [2023-12-15 20:31:20,950 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-36.i [2023-12-15 20:31:20,961 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:31:20,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:31:20,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:31:20,998 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;@ca51789, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:31:20,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:31:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 68 states have internal predecessors, (96), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-15 20:31:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-15 20:31:21,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:31:21,014 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:31:21,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:31:21,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:31:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash -195198655, now seen corresponding path program 1 times [2023-12-15 20:31:21,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:31:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180814674] [2023-12-15 20:31:21,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:21,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:31:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:31:21,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:31:21,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180814674] [2023-12-15 20:31:21,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 20:31:21,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12253784] [2023-12-15 20:31:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:21,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:31:21,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:31:21,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:31:21,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:31:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:31:21,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 20:31:21,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:31:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2023-12-15 20:31:21,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:31:21,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12253784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:31:21,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:31:21,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:31:21,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560571325] [2023-12-15 20:31:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:31:21,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:31:21,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:31:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:31:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:31:21,608 INFO L87 Difference]: Start difference. First operand has 116 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 68 states have internal predecessors, (96), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-15 20:31:21,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:31:21,665 INFO L93 Difference]: Finished difference Result 229 states and 420 transitions. [2023-12-15 20:31:21,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:31:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) Word has length 283 [2023-12-15 20:31:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:31:21,674 INFO L225 Difference]: With dead ends: 229 [2023-12-15 20:31:21,674 INFO L226 Difference]: Without dead ends: 114 [2023-12-15 20:31:21,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:31:21,684 INFO L413 NwaCegarLoop]: 179 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, 179 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 [2023-12-15 20:31:21,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:31:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-15 20:31:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-12-15 20:31:21,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-15 20:31:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 182 transitions. [2023-12-15 20:31:21,737 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 182 transitions. Word has length 283 [2023-12-15 20:31:21,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:31:21,738 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 182 transitions. [2023-12-15 20:31:21,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-15 20:31:21,738 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 182 transitions. [2023-12-15 20:31:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-15 20:31:21,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:31:21,742 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:31:21,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 20:31:21,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 20:31:21,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:31:21,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:31:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2090487529, now seen corresponding path program 1 times [2023-12-15 20:31:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:31:21,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594594141] [2023-12-15 20:31:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:31:22,012 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:31:22,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348164551] [2023-12-15 20:31:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:22,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:31:22,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:31:22,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:31:22,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:31:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:31:22,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 20:31:22,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:31:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-15 20:31:22,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:31:22,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:31:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594594141] [2023-12-15 20:31:22,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:31:22,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348164551] [2023-12-15 20:31:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348164551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:31:22,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:31:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:31:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934593493] [2023-12-15 20:31:22,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:31:22,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:31:22,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:31:22,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:31:22,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:31:22,297 INFO L87 Difference]: Start difference. First operand 114 states and 182 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:31:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:31:22,364 INFO L93 Difference]: Finished difference Result 271 states and 430 transitions. [2023-12-15 20:31:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:31:22,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 283 [2023-12-15 20:31:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:31:22,372 INFO L225 Difference]: With dead ends: 271 [2023-12-15 20:31:22,372 INFO L226 Difference]: Without dead ends: 158 [2023-12-15 20:31:22,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:31:22,375 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 118 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:31:22,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 351 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:31:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-15 20:31:22,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2023-12-15 20:31:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 85 states have internal predecessors, (107), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-15 20:31:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 247 transitions. [2023-12-15 20:31:22,411 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 247 transitions. Word has length 283 [2023-12-15 20:31:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:31:22,413 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 247 transitions. [2023-12-15 20:31:22,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:31:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 247 transitions. [2023-12-15 20:31:22,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-15 20:31:22,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:31:22,421 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:31:22,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 20:31:22,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 20:31:22,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:31:22,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:31:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1739379852, now seen corresponding path program 1 times [2023-12-15 20:31:22,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:31:22,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397018705] [2023-12-15 20:31:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:22,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:31:22,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:31:22,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159131251] [2023-12-15 20:31:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:22,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:31:22,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:31:22,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:31:22,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:31:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:31:22,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 20:31:22,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:31:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 783 proven. 12 refuted. 0 times theorem prover too weak. 3345 trivial. 0 not checked. [2023-12-15 20:31:23,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:31:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 123 proven. 12 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2023-12-15 20:31:23,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:31:23,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397018705] [2023-12-15 20:31:23,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:31:23,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159131251] [2023-12-15 20:31:23,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159131251] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:31:23,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:31:23,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-15 20:31:23,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711798107] [2023-12-15 20:31:23,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:31:23,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 20:31:23,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:31:23,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 20:31:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-15 20:31:23,265 INFO L87 Difference]: Start difference. First operand 157 states and 247 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-15 20:31:24,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:31:24,197 INFO L93 Difference]: Finished difference Result 399 states and 610 transitions. [2023-12-15 20:31:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-15 20:31:24,197 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 284 [2023-12-15 20:31:24,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:31:24,201 INFO L225 Difference]: With dead ends: 399 [2023-12-15 20:31:24,201 INFO L226 Difference]: Without dead ends: 282 [2023-12-15 20:31:24,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 552 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=294, Invalid=762, Unknown=0, NotChecked=0, Total=1056 [2023-12-15 20:31:24,204 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 467 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 20:31:24,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 582 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 20:31:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-15 20:31:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 223. [2023-12-15 20:31:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 132 states have (on average 1.3106060606060606) internal successors, (173), 133 states have internal predecessors, (173), 85 states have call successors, (85), 5 states have call predecessors, (85), 5 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-15 20:31:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 343 transitions. [2023-12-15 20:31:24,242 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 343 transitions. Word has length 284 [2023-12-15 20:31:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:31:24,243 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 343 transitions. [2023-12-15 20:31:24,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-15 20:31:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 343 transitions. [2023-12-15 20:31:24,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-15 20:31:24,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:31:24,246 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:31:24,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 20:31:24,454 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 [2023-12-15 20:31:24,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:31:24,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:31:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2130972718, now seen corresponding path program 1 times [2023-12-15 20:31:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:31:24,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764061521] [2023-12-15 20:31:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:24,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:31:24,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:31:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201353602] [2023-12-15 20:31:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:24,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:31:24,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:31:24,487 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) [2023-12-15 20:31:24,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:31:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:31:24,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 20:31:24,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:31:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-15 20:31:24,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:31:24,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:31:24,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764061521] [2023-12-15 20:31:24,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:31:24,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201353602] [2023-12-15 20:31:24,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201353602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:31:24,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:31:24,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:31:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800830311] [2023-12-15 20:31:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:31:24,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:31:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:31:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:31:24,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:31:24,699 INFO L87 Difference]: Start difference. First operand 223 states and 343 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:31:24,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:31:24,943 INFO L93 Difference]: Finished difference Result 562 states and 865 transitions. [2023-12-15 20:31:24,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 20:31:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 285 [2023-12-15 20:31:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:31:24,946 INFO L225 Difference]: With dead ends: 562 [2023-12-15 20:31:24,946 INFO L226 Difference]: Without dead ends: 340 [2023-12-15 20:31:24,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:31:24,948 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 292 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:31:24,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 753 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 20:31:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-12-15 20:31:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 226. [2023-12-15 20:31:24,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 135 states have (on average 1.3111111111111111) internal successors, (177), 136 states have internal predecessors, (177), 85 states have call successors, (85), 5 states have call predecessors, (85), 5 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-15 20:31:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 347 transitions. [2023-12-15 20:31:24,967 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 347 transitions. Word has length 285 [2023-12-15 20:31:24,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:31:24,967 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 347 transitions. [2023-12-15 20:31:24,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:31:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 347 transitions. [2023-12-15 20:31:24,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-15 20:31:24,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:31:24,970 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:31:24,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 20:31:25,175 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 [2023-12-15 20:31:25,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:31:25,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:31:25,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1346346128, now seen corresponding path program 1 times [2023-12-15 20:31:25,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:31:25,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899321123] [2023-12-15 20:31:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:25,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:31:25,219 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:31:25,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370971712] [2023-12-15 20:31:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:31:25,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:31:25,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:31:25,220 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) [2023-12-15 20:31:25,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-12-15 20:32:40,463 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:32:40,488 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 [2023-12-15 20:32:41,515 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 0 [2023-12-15 20:32:41,715 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-12-15 20:32:41,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-12-15 20:32:41,720 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-15 20:32:41,722 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:32:41,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 20:32:41,722 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 286 with TraceHistMax 46,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-15 20:32:41,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-15 20:32:41,727 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:32:41,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:32:41 BoogieIcfgContainer [2023-12-15 20:32:41,728 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:32:41,728 INFO L158 Benchmark]: Toolchain (without parser) took 81703.33ms. Allocated memory was 292.6MB in the beginning and 351.3MB in the end (delta: 58.7MB). Free memory was 240.9MB in the beginning and 308.3MB in the end (delta: -67.4MB). Peak memory consumption was 179.5MB. Max. memory is 8.0GB. [2023-12-15 20:32:41,729 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:32:41,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.29ms. Allocated memory is still 292.6MB. Free memory was 240.9MB in the beginning and 223.6MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 20:32:41,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.62ms. Allocated memory is still 292.6MB. Free memory was 223.0MB in the beginning and 218.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 20:32:41,730 INFO L158 Benchmark]: Boogie Preprocessor took 71.80ms. Allocated memory is still 292.6MB. Free memory was 218.3MB in the beginning and 212.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 20:32:41,731 INFO L158 Benchmark]: RCFGBuilder took 526.83ms. Allocated memory is still 292.6MB. Free memory was 212.5MB in the beginning and 252.6MB in the end (delta: -40.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-15 20:32:41,731 INFO L158 Benchmark]: TraceAbstraction took 80781.72ms. Allocated memory was 292.6MB in the beginning and 351.3MB in the end (delta: 58.7MB). Free memory was 252.1MB in the beginning and 308.3MB in the end (delta: -56.2MB). Peak memory consumption was 190.7MB. Max. memory is 8.0GB. [2023-12-15 20:32:41,733 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.29ms. Allocated memory is still 292.6MB. Free memory was 240.9MB in the beginning and 223.6MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.62ms. Allocated memory is still 292.6MB. Free memory was 223.0MB in the beginning and 218.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.80ms. Allocated memory is still 292.6MB. Free memory was 218.3MB in the beginning and 212.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 526.83ms. Allocated memory is still 292.6MB. Free memory was 212.5MB in the beginning and 252.6MB in the end (delta: -40.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * TraceAbstraction took 80781.72ms. Allocated memory was 292.6MB in the beginning and 351.3MB in the end (delta: 58.7MB). Free memory was 252.1MB in the beginning and 308.3MB in the end (delta: -56.2MB). Peak memory consumption was 190.7MB. 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 286 with TraceHistMax 46,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 116 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.7s, OverallIterations: 5, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 964 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 877 mSDsluCounter, 1865 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1050 mSDsCounter, 346 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1273 IncrementalHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 346 mSolverCounterUnsat, 815 mSDtfsCounter, 1273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1432 GetRequests, 1395 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1418 NumberOfCodeBlocks, 1418 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1414 ConstructedInterpolants, 0 QuantifiedInterpolants, 1850 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2515 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 20676/20700 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