/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-31.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 08:25:56,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 08:25:56,304 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 08:25:56,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 08:25:56,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 08:25:56,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 08:25:56,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 08:25:56,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 08:25:56,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 08:25:56,326 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 08:25:56,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 08:25:56,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 08:25:56,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 08:25:56,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 08:25:56,327 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 08:25:56,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 08:25:56,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 08:25:56,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 08:25:56,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 08:25:56,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 08:25:56,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 08:25:56,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 08:25:56,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 08:25:56,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 08:25:56,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 08:25:56,330 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 08:25:56,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 08:25:56,331 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 08:25:56,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 08:25:56,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 08:25:56,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 08:25:56,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 08:25:56,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 08:25:56,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 08:25:56,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 08:25:56,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 08:25:56,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 08:25:56,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 08:25:56,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 08:25:56,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 08:25:56,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 08:25:56,531 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 08:25:56,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-31.i [2023-12-19 08:25:57,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 08:25:57,874 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 08:25:57,875 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-31.i [2023-12-19 08:25:57,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96d5bf8d/953756eafffd4ee8bc37d3a1d073541a/FLAGd27cbfa3c [2023-12-19 08:25:57,901 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96d5bf8d/953756eafffd4ee8bc37d3a1d073541a [2023-12-19 08:25:57,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 08:25:57,904 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 08:25:57,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 08:25:57,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 08:25:57,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 08:25:57,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:25:57" (1/1) ... [2023-12-19 08:25:57,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2727aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:57, skipping insertion in model container [2023-12-19 08:25:57,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:25:57" (1/1) ... [2023-12-19 08:25:57,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 08:25:58,043 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-31.i[919,932] [2023-12-19 08:25:58,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 08:25:58,126 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 08:25:58,140 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-31.i[919,932] [2023-12-19 08:25:58,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 08:25:58,223 INFO L206 MainTranslator]: Completed translation [2023-12-19 08:25:58,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58 WrapperNode [2023-12-19 08:25:58,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 08:25:58,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 08:25:58,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 08:25:58,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 08:25:58,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,299 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 289 [2023-12-19 08:25:58,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 08:25:58,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 08:25:58,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 08:25:58,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 08:25:58,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,350 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]. [2023-12-19 08:25:58,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 08:25:58,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 08:25:58,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 08:25:58,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 08:25:58,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (1/1) ... [2023-12-19 08:25:58,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 08:25:58,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 08:25:58,465 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) [2023-12-19 08:25:58,490 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 [2023-12-19 08:25:58,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 08:25:58,505 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 08:25:58,505 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 08:25:58,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 08:25:58,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 08:25:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 08:25:58,603 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 08:25:58,606 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 08:25:59,070 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 08:25:59,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 08:25:59,111 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 08:25:59,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:25:59 BoogieIcfgContainer [2023-12-19 08:25:59,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 08:25:59,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 08:25:59,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 08:25:59,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 08:25:59,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 08:25:57" (1/3) ... [2023-12-19 08:25:59,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614201c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:25:59, skipping insertion in model container [2023-12-19 08:25:59,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:25:58" (2/3) ... [2023-12-19 08:25:59,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614201c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:25:59, skipping insertion in model container [2023-12-19 08:25:59,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:25:59" (3/3) ... [2023-12-19 08:25:59,118 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-31.i [2023-12-19 08:25:59,130 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 08:25:59,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 08:25:59,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 08:25:59,204 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;@1e1a0d74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 08:25:59,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 08:25:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 66 states have internal predecessors, (92), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 08:25:59,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-12-19 08:25:59,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 08:25:59,232 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 08:25:59,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 08:25:59,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 08:25:59,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1941317115, now seen corresponding path program 1 times [2023-12-19 08:25:59,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 08:25:59,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358361623] [2023-12-19 08:25:59,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 08:25:59,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 08:25:59,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 08:25:59,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154110985] [2023-12-19 08:25:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 08:25:59,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 08:25:59,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 08:25:59,505 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) [2023-12-19 08:25:59,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 08:25:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 08:25:59,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 08:25:59,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 08:26:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 2345 proven. 33 refuted. 0 times theorem prover too weak. 3346 trivial. 0 not checked. [2023-12-19 08:26:00,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 08:26:01,197 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 126 proven. 33 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2023-12-19 08:26:01,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 08:26:01,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358361623] [2023-12-19 08:26:01,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 08:26:01,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154110985] [2023-12-19 08:26:01,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154110985] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 08:26:01,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 08:26:01,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-19 08:26:01,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337493195] [2023-12-19 08:26:01,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 08:26:01,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 08:26:01,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 08:26:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 08:26:01,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-12-19 08:26:01,226 INFO L87 Difference]: Start difference. First operand has 122 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 66 states have internal predecessors, (92), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 6 states have call successors, (108), 4 states have call predecessors, (108), 6 states have return successors, (108), 6 states have call predecessors, (108), 6 states have call successors, (108) [2023-12-19 08:26:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 08:26:02,379 INFO L93 Difference]: Finished difference Result 598 states and 1210 transitions. [2023-12-19 08:26:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 08:26:02,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 6 states have call successors, (108), 4 states have call predecessors, (108), 6 states have return successors, (108), 6 states have call predecessors, (108), 6 states have call successors, (108) Word has length 319 [2023-12-19 08:26:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 08:26:02,391 INFO L225 Difference]: With dead ends: 598 [2023-12-19 08:26:02,392 INFO L226 Difference]: Without dead ends: 477 [2023-12-19 08:26:02,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=257, Unknown=0, NotChecked=0, Total=420 [2023-12-19 08:26:02,400 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 427 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 08:26:02,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 665 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 08:26:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-12-19 08:26:02,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 315. [2023-12-19 08:26:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 162 states have (on average 1.3024691358024691) internal successors, (211), 163 states have internal predecessors, (211), 148 states have call successors, (148), 4 states have call predecessors, (148), 4 states have return successors, (148), 147 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-19 08:26:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 507 transitions. [2023-12-19 08:26:02,518 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 507 transitions. Word has length 319 [2023-12-19 08:26:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 08:26:02,519 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 507 transitions. [2023-12-19 08:26:02,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 6 states have call successors, (108), 4 states have call predecessors, (108), 6 states have return successors, (108), 6 states have call predecessors, (108), 6 states have call successors, (108) [2023-12-19 08:26:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 507 transitions. [2023-12-19 08:26:02,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-12-19 08:26:02,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 08:26:02,525 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 08:26:02,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 08:26:02,737 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 [2023-12-19 08:26:02,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 08:26:02,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 08:26:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1884058813, now seen corresponding path program 1 times [2023-12-19 08:26:02,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 08:26:02,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017908425] [2023-12-19 08:26:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 08:26:02,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 08:26:02,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 08:26:02,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822074363] [2023-12-19 08:26:02,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 08:26:02,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 08:26:02,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 08:26:02,799 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) [2023-12-19 08:26:02,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 08:26:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 08:26:02,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-19 08:26:02,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-19 08:39:51,986 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 08:39:51,988 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 [2023-12-19 08:39:53,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 08:39:53,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown