/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/array-industry-pattern/array_of_struct_ptr_cond_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 17:47:13,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 17:47:13,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 17:47:13,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 17:47:13,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 17:47:13,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 17:47:13,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 17:47:13,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 17:47:13,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 17:47:13,510 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 17:47:13,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 17:47:13,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 17:47:13,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 17:47:13,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 17:47:13,512 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 17:47:13,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 17:47:13,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 17:47:13,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 17:47:13,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 17:47:13,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 17:47:13,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 17:47:13,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 17:47:13,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 17:47:13,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 17:47:13,513 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 17:47:13,513 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 17:47:13,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 17:47:13,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 17:47:13,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 17:47:13,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 17:47:13,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 17:47:13,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 17:47:13,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 17:47:13,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 17:47:13,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 17:47:13,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 17:47:13,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 17:47:13,516 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 17:47:13,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 17:47:13,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 17:47:13,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 17:47:13,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 17:47:13,729 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 17:47:13,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i [2023-12-18 17:47:14,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 17:47:14,886 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 17:47:14,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i [2023-12-18 17:47:14,891 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c63a7a97d/92441a86bb624475ba7daedb98f879fa/FLAG907708194 [2023-12-18 17:47:14,901 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c63a7a97d/92441a86bb624475ba7daedb98f879fa [2023-12-18 17:47:14,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 17:47:14,903 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 17:47:14,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 17:47:14,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 17:47:14,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 17:47:14,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:47:14" (1/1) ... [2023-12-18 17:47:14,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c696180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:14, skipping insertion in model container [2023-12-18 17:47:14,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:47:14" (1/1) ... [2023-12-18 17:47:14,929 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 17:47:15,023 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2023-12-18 17:47:15,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 17:47:15,048 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 17:47:15,058 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_cond_init.i[999,1012] [2023-12-18 17:47:15,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 17:47:15,072 INFO L206 MainTranslator]: Completed translation [2023-12-18 17:47:15,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15 WrapperNode [2023-12-18 17:47:15,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 17:47:15,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 17:47:15,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 17:47:15,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 17:47:15,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,095 INFO L138 Inliner]: procedures = 20, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-12-18 17:47:15,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 17:47:15,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 17:47:15,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 17:47:15,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 17:47:15,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,113 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 3, 6]. 55 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 2, 3]. [2023-12-18 17:47:15,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 17:47:15,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 17:47:15,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 17:47:15,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 17:47:15,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (1/1) ... [2023-12-18 17:47:15,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 17:47:15,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:47:15,145 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) [2023-12-18 17:47:15,160 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 [2023-12-18 17:47:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-18 17:47:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-18 17:47:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-18 17:47:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 17:47:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 17:47:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-18 17:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-18 17:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 17:47:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 17:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-18 17:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-18 17:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-18 17:47:15,239 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 17:47:15,240 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 17:47:15,353 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 17:47:15,373 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 17:47:15,373 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-18 17:47:15,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:47:15 BoogieIcfgContainer [2023-12-18 17:47:15,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 17:47:15,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 17:47:15,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 17:47:15,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 17:47:15,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:47:14" (1/3) ... [2023-12-18 17:47:15,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d684c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:47:15, skipping insertion in model container [2023-12-18 17:47:15,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:15" (2/3) ... [2023-12-18 17:47:15,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d684c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:47:15, skipping insertion in model container [2023-12-18 17:47:15,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:47:15" (3/3) ... [2023-12-18 17:47:15,379 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_cond_init.i [2023-12-18 17:47:15,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 17:47:15,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-18 17:47:15,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 17:47:15,425 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;@54ebac88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 17:47:15,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-18 17:47:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-18 17:47:15,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:47:15,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:47:15,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:47:15,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:47:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1046469887, now seen corresponding path program 1 times [2023-12-18 17:47:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:47:15,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429140729] [2023-12-18 17:47:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:47:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:47:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:47:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:15,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:47:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429140729] [2023-12-18 17:47:15,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429140729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 17:47:15,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 17:47:15,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 17:47:15,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891400604] [2023-12-18 17:47:15,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 17:47:15,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-18 17:47:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:47:15,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-18 17:47:15,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-18 17:47:15,582 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:47:15,616 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2023-12-18 17:47:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-18 17:47:15,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-18 17:47:15,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:47:15,624 INFO L225 Difference]: With dead ends: 24 [2023-12-18 17:47:15,624 INFO L226 Difference]: Without dead ends: 12 [2023-12-18 17:47:15,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-18 17:47:15,630 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:47:15,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:47:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-18 17:47:15,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-18 17:47:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2023-12-18 17:47:15,653 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2023-12-18 17:47:15,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:47:15,653 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-12-18 17:47:15,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2023-12-18 17:47:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-18 17:47:15,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:47:15,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:47:15,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 17:47:15,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:47:15,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:47:15,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1475907152, now seen corresponding path program 1 times [2023-12-18 17:47:15,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:47:15,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261908982] [2023-12-18 17:47:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:47:15,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:47:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:47:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:15,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:47:15,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261908982] [2023-12-18 17:47:15,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261908982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 17:47:15,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 17:47:15,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 17:47:15,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220781018] [2023-12-18 17:47:15,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 17:47:15,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 17:47:15,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:47:15,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 17:47:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 17:47:15,724 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:47:15,742 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2023-12-18 17:47:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 17:47:15,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-18 17:47:15,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:47:15,742 INFO L225 Difference]: With dead ends: 30 [2023-12-18 17:47:15,743 INFO L226 Difference]: Without dead ends: 22 [2023-12-18 17:47:15,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 17:47:15,744 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:47:15,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:47:15,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-18 17:47:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 13. [2023-12-18 17:47:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2023-12-18 17:47:15,747 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2023-12-18 17:47:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:47:15,748 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-12-18 17:47:15,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-18 17:47:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-18 17:47:15,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:47:15,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:47:15,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 17:47:15,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:47:15,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:47:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash 627384837, now seen corresponding path program 1 times [2023-12-18 17:47:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:47:15,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983452551] [2023-12-18 17:47:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:47:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:47:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:47:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:15,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:47:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983452551] [2023-12-18 17:47:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983452551] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:47:15,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873055172] [2023-12-18 17:47:15,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:47:15,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:47:15,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:47:15,866 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) [2023-12-18 17:47:15,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 17:47:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:47:15,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 17:47:15,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:47:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:15,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:47:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:15,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873055172] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:47:15,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:47:15,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-18 17:47:15,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963394414] [2023-12-18 17:47:15,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:47:15,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 17:47:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:47:15,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 17:47:15,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-18 17:47:15,989 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:47:16,044 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2023-12-18 17:47:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 17:47:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-18 17:47:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:47:16,045 INFO L225 Difference]: With dead ends: 52 [2023-12-18 17:47:16,046 INFO L226 Difference]: Without dead ends: 44 [2023-12-18 17:47:16,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-18 17:47:16,048 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 60 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:47:16,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 42 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:47:16,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-18 17:47:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 22. [2023-12-18 17:47:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2023-12-18 17:47:16,056 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 10 [2023-12-18 17:47:16,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:47:16,056 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2023-12-18 17:47:16,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-12-18 17:47:16,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-18 17:47:16,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:47:16,058 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:47:16,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-18 17:47:16,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:47:16,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:47:16,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:47:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash 289821040, now seen corresponding path program 2 times [2023-12-18 17:47:16,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:47:16,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287508891] [2023-12-18 17:47:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:47:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:47:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:47:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:16,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:47:16,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287508891] [2023-12-18 17:47:16,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287508891] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:47:16,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869885254] [2023-12-18 17:47:16,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 17:47:16,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:47:16,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:47:16,481 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) [2023-12-18 17:47:16,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 17:47:16,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 17:47:16,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:47:16,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 17:47:16,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:47:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:16,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:47:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:16,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869885254] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:47:16,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:47:16,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-12-18 17:47:16,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504744744] [2023-12-18 17:47:16,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:47:16,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-18 17:47:16,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:47:16,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-18 17:47:16,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-18 17:47:16,687 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:16,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:47:16,781 INFO L93 Difference]: Finished difference Result 112 states and 140 transitions. [2023-12-18 17:47:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-18 17:47:16,781 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-18 17:47:16,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:47:16,784 INFO L225 Difference]: With dead ends: 112 [2023-12-18 17:47:16,784 INFO L226 Difference]: Without dead ends: 104 [2023-12-18 17:47:16,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-18 17:47:16,787 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 196 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 17:47:16,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 90 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 17:47:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-18 17:47:16,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 40. [2023-12-18 17:47:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2023-12-18 17:47:16,803 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 19 [2023-12-18 17:47:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:47:16,804 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2023-12-18 17:47:16,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:47:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2023-12-18 17:47:16,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-18 17:47:16,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:47:16,805 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:47:16,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-18 17:47:17,010 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,SelfDestructingSolverStorable3 [2023-12-18 17:47:17,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:47:17,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:47:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash -590965488, now seen corresponding path program 3 times [2023-12-18 17:47:17,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:47:17,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953034243] [2023-12-18 17:47:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:47:17,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:47:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:47:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:47:17,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:47:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953034243] [2023-12-18 17:47:17,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953034243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:47:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940465096] [2023-12-18 17:47:17,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 17:47:17,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:47:17,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:47:17,400 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) [2023-12-18 17:47:17,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-18 17:48:57,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-18 17:48:57,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:48:57,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-18 17:48:57,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:48:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:48:57,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:48:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:48:57,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940465096] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:48:57,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:48:57,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-12-18 17:48:57,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403808499] [2023-12-18 17:48:57,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:48:57,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-18 17:48:57,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:48:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-18 17:48:57,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-12-18 17:48:57,957 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand has 25 states, 25 states have (on average 2.92) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:48:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:48:58,109 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2023-12-18 17:48:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-18 17:48:58,110 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-12-18 17:48:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:48:58,113 INFO L225 Difference]: With dead ends: 232 [2023-12-18 17:48:58,113 INFO L226 Difference]: Without dead ends: 224 [2023-12-18 17:48:58,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-12-18 17:48:58,114 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 460 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 17:48:58,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 186 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 17:48:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-18 17:48:58,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 76. [2023-12-18 17:48:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:48:58,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 100 transitions. [2023-12-18 17:48:58,128 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 100 transitions. Word has length 37 [2023-12-18 17:48:58,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:48:58,129 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 100 transitions. [2023-12-18 17:48:58,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:48:58,129 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2023-12-18 17:48:58,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-18 17:48:58,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:48:58,131 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:48:58,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-18 17:48:58,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:48:58,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:48:58,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:48:58,345 INFO L85 PathProgramCache]: Analyzing trace with hash 723002448, now seen corresponding path program 4 times [2023-12-18 17:48:58,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:48:58,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691358946] [2023-12-18 17:48:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:48:58,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:48:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:48:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:48:59,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:48:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691358946] [2023-12-18 17:48:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691358946] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:48:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873762636] [2023-12-18 17:48:59,259 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-18 17:48:59,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:48:59,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:48:59,260 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) [2023-12-18 17:48:59,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-18 17:49:16,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-18 17:49:16,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:49:16,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-18 17:49:16,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:49:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:49:16,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:49:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:49:17,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873762636] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:49:17,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:49:17,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-12-18 17:49:17,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926190898] [2023-12-18 17:49:17,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:49:17,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-18 17:49:17,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:49:17,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-18 17:49:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-12-18 17:49:17,280 INFO L87 Difference]: Start difference. First operand 76 states and 100 transitions. Second operand has 49 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:49:17,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:49:17,712 INFO L93 Difference]: Finished difference Result 472 states and 590 transitions. [2023-12-18 17:49:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-18 17:49:17,712 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-18 17:49:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:49:17,714 INFO L225 Difference]: With dead ends: 472 [2023-12-18 17:49:17,714 INFO L226 Difference]: Without dead ends: 464 [2023-12-18 17:49:17,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-12-18 17:49:17,715 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1124 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-18 17:49:17,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 378 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-18 17:49:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-18 17:49:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 148. [2023-12-18 17:49:17,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.3333333333333333) internal successors, (196), 147 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:49:17,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2023-12-18 17:49:17,722 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 73 [2023-12-18 17:49:17,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:49:17,722 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2023-12-18 17:49:17,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:49:17,722 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2023-12-18 17:49:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-18 17:49:17,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:49:17,723 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:49:17,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-18 17:49:17,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:49:17,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:49:17,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:49:17,936 INFO L85 PathProgramCache]: Analyzing trace with hash -598252848, now seen corresponding path program 5 times [2023-12-18 17:49:17,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:49:17,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134345972] [2023-12-18 17:49:17,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:49:17,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:49:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:49:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3151 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:49:20,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:49:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134345972] [2023-12-18 17:49:20,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134345972] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:49:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257954015] [2023-12-18 17:49:20,455 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-18 17:49:20,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:49:20,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:49:20,456 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) [2023-12-18 17:49:20,458 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... [2023-12-18 18:02:00,326 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 [2023-12-18 18:02:00,327 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 [2023-12-18 18:02:01,336 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 [2023-12-18 18:02:01,527 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-12-18 18:02:01,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 18:02:01,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-18 18:02:01,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-12-18 18:02:01,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628651093] [2023-12-18 18:02:01,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-18 18:02:01,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-18 18:02:01,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 18:02:01,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-18 18:02:01,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-12-18 18:02:01,556 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 49 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 18:02:01,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-18 18:02:01,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-12-18 18:02:01,559 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 18:02:01,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 18:02:01,560 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-18 18:02:01,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-12-18 18:02:01,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 18:02:01,567 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (148states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2023-12-18 18:02:01,571 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-12-18 18:02:01,573 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-18 18:02:01,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:02:01 BoogieIcfgContainer [2023-12-18 18:02:01,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-18 18:02:01,575 INFO L158 Benchmark]: Toolchain (without parser) took 886671.97ms. Allocated memory is still 244.3MB. Free memory was 197.3MB in the beginning and 161.7MB in the end (delta: 35.6MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-18 18:02:01,575 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 18:02:01,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.86ms. Allocated memory is still 244.3MB. Free memory was 197.3MB in the beginning and 186.3MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-18 18:02:01,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.56ms. Allocated memory is still 244.3MB. Free memory was 186.3MB in the beginning and 184.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-18 18:02:01,576 INFO L158 Benchmark]: Boogie Preprocessor took 26.93ms. Allocated memory is still 244.3MB. Free memory was 184.2MB in the beginning and 182.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-18 18:02:01,576 INFO L158 Benchmark]: RCFGBuilder took 250.88ms. Allocated memory is still 244.3MB. Free memory was 182.1MB in the beginning and 167.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-18 18:02:01,576 INFO L158 Benchmark]: TraceAbstraction took 886199.73ms. Allocated memory is still 244.3MB. Free memory was 166.3MB in the beginning and 161.7MB in the end (delta: 4.6MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. [2023-12-18 18:02:01,577 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.86ms. Allocated memory is still 244.3MB. Free memory was 197.3MB in the beginning and 186.3MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.56ms. Allocated memory is still 244.3MB. Free memory was 186.3MB in the beginning and 184.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.93ms. Allocated memory is still 244.3MB. Free memory was 184.2MB in the beginning and 182.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 250.88ms. Allocated memory is still 244.3MB. Free memory was 182.1MB in the beginning and 167.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 886199.73ms. Allocated memory is still 244.3MB. Free memory was 166.3MB in the beginning and 161.7MB in the end (delta: 4.6MB). Peak memory consumption was 6.2MB. 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: 16]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 16). Cancelled while NwaCegarLoop was constructing difference of abstraction (148states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 886.2s, OverallIterations: 7, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1850 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1850 mSDsluCounter, 727 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 664 mSDsCounter, 241 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 241 mSolverCounterUnsat, 63 mSDtfsCounter, 383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 367 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=6, InterpolantAutomatonStates: 95, 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, 6 MinimizatonAttempts, 559 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 117.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 561 ConstructedInterpolants, 0 QuantifiedInterpolants, 1531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2288 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 15 InterpolantComputations, 2 PerfectInterpolantSequences, 0/5800 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