/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/ldv-sets/test_mutex_unbounded-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:53:08,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:53:08,248 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:53:08,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:53:08,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:53:08,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:53:08,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:53:08,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:53:08,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:53:08,283 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:53:08,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:53:08,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:53:08,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:53:08,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:53:08,285 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:53:08,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:53:08,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:53:08,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:53:08,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:53:08,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:53:08,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:53:08,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:53:08,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:53:08,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:53:08,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:53:08,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:53:08,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:53:08,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:53:08,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:53:08,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:53:08,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:53:08,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:53:08,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:53:08,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:53:08,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:53:08,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:53:08,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:53:08,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:53:08,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:53:08,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:53:08,304 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:53:08,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:53:08,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:53:08,305 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:53:08,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:53:08,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:53:08,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:53:08,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:53:08,559 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:53:08,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2023-12-15 21:53:09,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:53:09,950 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:53:09,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2023-12-15 21:53:09,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9e0c81b/327015c5db284fedbc0a88c8ba54d7b9/FLAGcd20e054f [2023-12-15 21:53:09,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9e0c81b/327015c5db284fedbc0a88c8ba54d7b9 [2023-12-15 21:53:09,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:53:09,983 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:53:09,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:53:09,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:53:09,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:53:09,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:53:09" (1/1) ... [2023-12-15 21:53:09,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b799eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:09, skipping insertion in model container [2023-12-15 21:53:09,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:53:09" (1/1) ... [2023-12-15 21:53:10,030 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:53:10,340 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2023-12-15 21:53:10,347 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2023-12-15 21:53:10,348 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2023-12-15 21:53:10,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:53:10,381 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:53:10,443 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2023-12-15 21:53:10,443 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2023-12-15 21:53:10,444 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2023-12-15 21:53:10,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:53:10,482 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:53:10,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10 WrapperNode [2023-12-15 21:53:10,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:53:10,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:53:10,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:53:10,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:53:10,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,527 INFO L138 Inliner]: procedures = 142, calls = 62, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 186 [2023-12-15 21:53:10,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:53:10,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:53:10,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:53:10,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:53:10,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,583 INFO L175 MemorySlicer]: Split 28 memory accesses to 2 slices as follows [2, 26]. 93 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 7 writes are split as follows [0, 7]. [2023-12-15 21:53:10,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:53:10,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:53:10,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:53:10,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:53:10,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (1/1) ... [2023-12-15 21:53:10,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:53:10,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:53:10,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 21:53:10,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 21:53:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-12-15 21:53:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-12-15 21:53:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-12-15 21:53:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-12-15 21:53:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-15 21:53:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:53:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-15 21:53:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-12-15 21:53:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:53:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:53:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-12-15 21:53:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-12-15 21:53:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:53:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:53:10,815 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:53:10,817 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:53:11,076 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:53:11,153 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:53:11,153 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-15 21:53:11,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:53:11 BoogieIcfgContainer [2023-12-15 21:53:11,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:53:11,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:53:11,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:53:11,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:53:11,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:53:09" (1/3) ... [2023-12-15 21:53:11,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d397a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:53:11, skipping insertion in model container [2023-12-15 21:53:11,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:53:10" (2/3) ... [2023-12-15 21:53:11,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d397a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:53:11, skipping insertion in model container [2023-12-15 21:53:11,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:53:11" (3/3) ... [2023-12-15 21:53:11,162 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2023-12-15 21:53:11,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:53:11,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-12-15 21:53:11,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:53:11,216 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;@3861a132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:53:11,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-15 21:53:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 40 states have (on average 1.5) internal successors, (60), 43 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:53:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-15 21:53:11,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:11,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:11,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:11,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:11,237 INFO L85 PathProgramCache]: Analyzing trace with hash 16347161, now seen corresponding path program 1 times [2023-12-15 21:53:11,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:11,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922695257] [2023-12-15 21:53:11,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:11,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:53:11,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:53:11,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922695257] [2023-12-15 21:53:11,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922695257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:53:11,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:53:11,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:53:11,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582953577] [2023-12-15 21:53:11,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:53:11,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:53:11,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:53:11,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:53:11,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:53:11,487 INFO L87 Difference]: Start difference. First operand has 56 states, 40 states have (on average 1.5) internal successors, (60), 43 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-12-15 21:53:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:53:11,552 INFO L93 Difference]: Finished difference Result 111 states and 156 transitions. [2023-12-15 21:53:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:53:11,555 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-12-15 21:53:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:53:11,561 INFO L225 Difference]: With dead ends: 111 [2023-12-15 21:53:11,561 INFO L226 Difference]: Without dead ends: 54 [2023-12-15 21:53:11,564 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 [2023-12-15 21:53:11,567 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:53:11,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:53:11,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-15 21:53:11,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-15 21:53:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:53:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2023-12-15 21:53:11,608 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 9 [2023-12-15 21:53:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:53:11,609 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2023-12-15 21:53:11,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-12-15 21:53:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2023-12-15 21:53:11,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-15 21:53:11,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:11,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:11,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 21:53:11,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:11,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1510923330, now seen corresponding path program 1 times [2023-12-15 21:53:11,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:11,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785864954] [2023-12-15 21:53:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:53:11,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:53:11,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785864954] [2023-12-15 21:53:11,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785864954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:53:11,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:53:11,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:53:11,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169953967] [2023-12-15 21:53:11,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:53:11,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:53:11,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:53:11,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:53:11,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:53:11,831 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-12-15 21:53:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:53:11,991 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2023-12-15 21:53:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 21:53:11,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-12-15 21:53:11,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:53:11,996 INFO L225 Difference]: With dead ends: 101 [2023-12-15 21:53:11,996 INFO L226 Difference]: Without dead ends: 97 [2023-12-15 21:53:11,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:53:11,997 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 47 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:53:11,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 127 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:53:12,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-15 21:53:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2023-12-15 21:53:12,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 64 states have internal predecessors, (81), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:53:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2023-12-15 21:53:12,019 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 9 [2023-12-15 21:53:12,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:53:12,020 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2023-12-15 21:53:12,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-12-15 21:53:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2023-12-15 21:53:12,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-15 21:53:12,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:12,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:12,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 21:53:12,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:12,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1591337207, now seen corresponding path program 1 times [2023-12-15 21:53:12,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:12,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955092921] [2023-12-15 21:53:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:12,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-15 21:53:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:53:12,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:53:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955092921] [2023-12-15 21:53:12,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955092921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:53:12,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:53:12,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:53:12,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262580456] [2023-12-15 21:53:12,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:53:12,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:53:12,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:53:12,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:53:12,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:53:12,192 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 21:53:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:53:12,351 INFO L93 Difference]: Finished difference Result 141 states and 174 transitions. [2023-12-15 21:53:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 21:53:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-12-15 21:53:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:53:12,353 INFO L225 Difference]: With dead ends: 141 [2023-12-15 21:53:12,353 INFO L226 Difference]: Without dead ends: 65 [2023-12-15 21:53:12,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:53:12,354 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 14 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:53:12,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 135 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:53:12,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-15 21:53:12,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2023-12-15 21:53:12,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 46 states have internal predecessors, (53), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-15 21:53:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2023-12-15 21:53:12,361 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 13 [2023-12-15 21:53:12,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:53:12,361 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2023-12-15 21:53:12,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 21:53:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-12-15 21:53:12,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-15 21:53:12,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:12,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:12,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 21:53:12,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:12,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1651958428, now seen corresponding path program 1 times [2023-12-15 21:53:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:12,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689788617] [2023-12-15 21:53:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:53:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:53:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 21:53:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:53:13,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:53:13,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689788617] [2023-12-15 21:53:13,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689788617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:53:13,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:53:13,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 21:53:13,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836218165] [2023-12-15 21:53:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:53:13,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 21:53:13,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:53:13,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 21:53:13,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 21:53:13,090 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 14 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-15 21:53:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:53:13,907 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2023-12-15 21:53:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-15 21:53:13,908 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2023-12-15 21:53:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:53:13,909 INFO L225 Difference]: With dead ends: 157 [2023-12-15 21:53:13,909 INFO L226 Difference]: Without dead ends: 135 [2023-12-15 21:53:13,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=675, Unknown=0, NotChecked=0, Total=812 [2023-12-15 21:53:13,911 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 239 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:53:13,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 288 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 21:53:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-15 21:53:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 92. [2023-12-15 21:53:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 73 states have internal predecessors, (88), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 21:53:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2023-12-15 21:53:13,926 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 24 [2023-12-15 21:53:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:53:13,927 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2023-12-15 21:53:13,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-15 21:53:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2023-12-15 21:53:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-15 21:53:13,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:13,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:13,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 21:53:13,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:13,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash -349519591, now seen corresponding path program 1 times [2023-12-15 21:53:13,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:13,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960719490] [2023-12-15 21:53:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:13,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:53:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:53:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 21:53:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 21:53:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 21:53:14,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:53:14,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960719490] [2023-12-15 21:53:14,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960719490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:53:14,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:53:14,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:53:14,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413051748] [2023-12-15 21:53:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:53:14,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:53:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:53:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:53:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:53:14,068 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-15 21:53:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:53:14,237 INFO L93 Difference]: Finished difference Result 102 states and 129 transitions. [2023-12-15 21:53:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:53:14,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-12-15 21:53:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:53:14,239 INFO L225 Difference]: With dead ends: 102 [2023-12-15 21:53:14,240 INFO L226 Difference]: Without dead ends: 100 [2023-12-15 21:53:14,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:53:14,241 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 23 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:53:14,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 165 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:53:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-15 21:53:14,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-12-15 21:53:14,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 79 states have internal predecessors, (94), 13 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (19), 13 states have call predecessors, (19), 13 states have call successors, (19) [2023-12-15 21:53:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2023-12-15 21:53:14,264 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 28 [2023-12-15 21:53:14,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:53:14,265 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2023-12-15 21:53:14,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-15 21:53:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2023-12-15 21:53:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-15 21:53:14,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:14,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:14,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 21:53:14,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:14,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1225083714, now seen corresponding path program 1 times [2023-12-15 21:53:14,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:14,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184916266] [2023-12-15 21:53:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:14,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:53:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:53:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 21:53:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:15,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 21:53:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:53:15,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:53:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184916266] [2023-12-15 21:53:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184916266] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:53:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188329164] [2023-12-15 21:53:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:15,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:53:15,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:53:15,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:53:15,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:53:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:15,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 76 conjunts are in the unsatisfiable core [2023-12-15 21:53:15,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:53:15,648 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-15 21:53:15,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-15 21:53:16,271 INFO L349 Elim1Store]: treesize reduction 13, result has 56.7 percent of original size [2023-12-15 21:53:16,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 87 [2023-12-15 21:53:16,304 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-15 21:53:16,319 INFO L349 Elim1Store]: treesize reduction 25, result has 26.5 percent of original size [2023-12-15 21:53:16,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 101 [2023-12-15 21:53:16,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2023-12-15 21:53:16,380 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-15 21:53:16,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2023-12-15 21:53:16,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2023-12-15 21:53:16,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:53:16,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 13 [2023-12-15 21:53:16,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-15 21:53:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 21:53:16,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:53:17,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188329164] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:53:17,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:53:17,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 30 [2023-12-15 21:53:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88420458] [2023-12-15 21:53:17,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:53:17,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-15 21:53:17,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:53:17,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-15 21:53:17,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=926, Unknown=10, NotChecked=0, Total=1056 [2023-12-15 21:53:17,225 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand has 30 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 23 states have internal predecessors, (37), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:53:21,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-15 21:53:24,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:53:24,065 INFO L93 Difference]: Finished difference Result 265 states and 346 transitions. [2023-12-15 21:53:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-15 21:53:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 23 states have internal predecessors, (37), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 28 [2023-12-15 21:53:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:53:24,068 INFO L225 Difference]: With dead ends: 265 [2023-12-15 21:53:24,069 INFO L226 Difference]: Without dead ends: 179 [2023-12-15 21:53:24,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=433, Invalid=2850, Unknown=23, NotChecked=0, Total=3306 [2023-12-15 21:53:24,071 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 229 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 87 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-15 21:53:24,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 441 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1085 Invalid, 14 Unknown, 0 Unchecked, 5.6s Time] [2023-12-15 21:53:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-15 21:53:24,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 142. [2023-12-15 21:53:24,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 108 states have (on average 1.2685185185185186) internal successors, (137), 112 states have internal predecessors, (137), 18 states have call successors, (18), 10 states have call predecessors, (18), 13 states have return successors, (25), 19 states have call predecessors, (25), 18 states have call successors, (25) [2023-12-15 21:53:24,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 180 transitions. [2023-12-15 21:53:24,106 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 180 transitions. Word has length 28 [2023-12-15 21:53:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:53:24,107 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 180 transitions. [2023-12-15 21:53:24,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 23 states have internal predecessors, (37), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:53:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 180 transitions. [2023-12-15 21:53:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-15 21:53:24,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:53:24,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:53:24,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:53:24,319 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,SelfDestructingSolverStorable5 [2023-12-15 21:53:24,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:53:24,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:53:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash 708305632, now seen corresponding path program 2 times [2023-12-15 21:53:24,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:53:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406353422] [2023-12-15 21:53:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:53:24,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:53:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:53:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:53:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:25,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 21:53:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:25,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 21:53:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:25,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 21:53:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:53:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 21:53:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-15 21:54:10,924 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:54:10,933 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-15 21:54:10,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 21:54:10,933 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 44 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-47-4-25-5-16-5-16-5-16-5-10-5-10-5-10-5-10-5-10-5-5-5-5-4-5-4-4-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-80-7-25-7-16-7-16-7-16-7-10-8-10-5-10-6-10-5-10-5-5-5-5-4-5-4-4-4-1 context. [2023-12-15 21:54:10,935 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-12-15 21:54:10,935 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-12-15 21:54:10,938 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-12-15 21:54:10,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:54:10,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:54:10 BoogieIcfgContainer [2023-12-15 21:54:10,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:54:10,943 INFO L158 Benchmark]: Toolchain (without parser) took 60959.87ms. Allocated memory was 186.6MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 148.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-15 21:54:10,943 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:54:10,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.19ms. Allocated memory is still 186.6MB. Free memory was 148.1MB in the beginning and 127.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-15 21:54:10,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.04ms. Allocated memory is still 186.6MB. Free memory was 127.0MB in the beginning and 124.4MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:54:10,944 INFO L158 Benchmark]: Boogie Preprocessor took 73.14ms. Allocated memory is still 186.6MB. Free memory was 124.4MB in the beginning and 117.7MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 21:54:10,944 INFO L158 Benchmark]: RCFGBuilder took 552.06ms. Allocated memory is still 186.6MB. Free memory was 117.7MB in the beginning and 89.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-15 21:54:10,944 INFO L158 Benchmark]: TraceAbstraction took 59786.19ms. Allocated memory was 186.6MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 88.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-15 21:54:10,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 499.19ms. Allocated memory is still 186.6MB. Free memory was 148.1MB in the beginning and 127.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.04ms. Allocated memory is still 186.6MB. Free memory was 127.0MB in the beginning and 124.4MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.14ms. Allocated memory is still 186.6MB. Free memory was 124.4MB in the beginning and 117.7MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 552.06ms. Allocated memory is still 186.6MB. Free memory was 117.7MB in the beginning and 89.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 59786.19ms. Allocated memory was 186.6MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 88.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.0GB. 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: 673]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 673). Cancelled while NwaCegarLoop was analyzing trace of length 44 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-47-4-25-5-16-5-16-5-16-5-10-5-10-5-10-5-10-5-10-5-5-5-5-4-5-4-4-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-80-7-25-7-16-7-16-7-16-7-10-8-10-5-10-6-10-5-10-5-5-5-5-4-5-4-4-4-1 context. - TimeoutResultAtElement [Line: 677]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 677). Cancelled while NwaCegarLoop was analyzing trace of length 44 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-47-4-25-5-16-5-16-5-16-5-10-5-10-5-10-5-10-5-10-5-5-5-5-4-5-4-4-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-80-7-25-7-16-7-16-7-16-7-10-8-10-5-10-6-10-5-10-5-5-5-5-4-5-4-4-4-1 context. - TimeoutResultAtElement [Line: 681]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 681). Cancelled while NwaCegarLoop was analyzing trace of length 44 with TraceHistMax 2,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-47-4-25-5-16-5-16-5-16-5-10-5-10-5-10-5-10-5-10-5-5-5-5-4-5-4-4-4-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-80-7-25-7-16-7-16-7-16-7-10-8-10-5-10-6-10-5-10-5-5-5-5-4-5-4-4-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 59.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 563 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 552 mSDsluCounter, 1213 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 960 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1903 IncrementalHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 253 mSDtfsCounter, 1903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=6, InterpolantAutomatonStates: 67, 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, 101 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 132 ConstructedInterpolants, 3 QuantifiedInterpolants, 1756 SizeOfPredicates, 18 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 2/4 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