/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/combinations/Problem05_label42+token_ring.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:32:36,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:32:36,620 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 17:32:36,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:32:36,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:32:36,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:32:36,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:32:36,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:32:36,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:32:36,650 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:32:36,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:32:36,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:32:36,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:32:36,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:32:36,652 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:32:36,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:32:36,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:32:36,653 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:32:36,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:32:36,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:32:36,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:32:36,654 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:32:36,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:32:36,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:32:36,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:32:36,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:32:36,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:32:36,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:32:36,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:32:36,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:32:36,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:32:36,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:32:36,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:32:36,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:32:36,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:32:36,879 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:32:36,879 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:32:36,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c [2023-12-15 17:32:37,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:32:38,372 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:32:38,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c [2023-12-15 17:32:38,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8e0387b/4cebd513a6af4c008628423baa765649/FLAGc19bb0b0c [2023-12-15 17:32:38,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8e0387b/4cebd513a6af4c008628423baa765649 [2023-12-15 17:32:38,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:32:38,433 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:32:38,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:32:38,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:32:38,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:32:38,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:32:38" (1/1) ... [2023-12-15 17:32:38,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ff1c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:38, skipping insertion in model container [2023-12-15 17:32:38,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:32:38" (1/1) ... [2023-12-15 17:32:38,581 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:32:39,773 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[378560,378573] [2023-12-15 17:32:39,794 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[383339,383352] [2023-12-15 17:32:39,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:32:39,970 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:32:40,526 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[378560,378573] [2023-12-15 17:32:40,532 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.10.cil-1.c[383339,383352] [2023-12-15 17:32:40,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:32:40,607 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:32:40,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40 WrapperNode [2023-12-15 17:32:40,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:32:40,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:32:40,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:32:40,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:32:40,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:40,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,047 INFO L138 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 13119 [2023-12-15 17:32:41,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:32:41,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:32:41,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:32:41,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:32:41,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,184 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 17:32:41,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:32:41,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:32:41,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:32:41,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:32:41,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (1/1) ... [2023-12-15 17:32:41,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:32:41,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:32:41,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 17:32:41,573 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 17:32:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:32:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:32:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:32:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:32:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:32:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:32:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:32:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-15 17:32:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-15 17:32:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:32:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:32:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:32:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:32:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:32:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:32:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:32:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:32:41,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:32:41,720 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:32:41,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:32:47,566 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:32:47,650 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:32:47,650 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-15 17:32:47,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:32:47 BoogieIcfgContainer [2023-12-15 17:32:47,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:32:47,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:32:47,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:32:47,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:32:47,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:32:38" (1/3) ... [2023-12-15 17:32:47,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a67b38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:32:47, skipping insertion in model container [2023-12-15 17:32:47,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:40" (2/3) ... [2023-12-15 17:32:47,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a67b38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:32:47, skipping insertion in model container [2023-12-15 17:32:47,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:32:47" (3/3) ... [2023-12-15 17:32:47,658 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.10.cil-1.c [2023-12-15 17:32:47,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:32:47,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:32:47,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:32:47,741 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;@361b355e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:32:47,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:32:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 2433 states, 2397 states have (on average 1.8777638715060492) internal successors, (4501), 2402 states have internal predecessors, (4501), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-15 17:32:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:32:47,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:32:47,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:47,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:32:47,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:32:47,774 INFO L85 PathProgramCache]: Analyzing trace with hash -410914149, now seen corresponding path program 1 times [2023-12-15 17:32:47,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:32:47,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254830192] [2023-12-15 17:32:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:32:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:32:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:32:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:32:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:48,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:32:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:32:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:32:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:48,124 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 17:32:48,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:32:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254830192] [2023-12-15 17:32:48,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254830192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:32:48,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:32:48,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:32:48,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054043319] [2023-12-15 17:32:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:32:48,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:32:48,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:32:48,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:32:48,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:32:48,162 INFO L87 Difference]: Start difference. First operand has 2433 states, 2397 states have (on average 1.8777638715060492) internal successors, (4501), 2402 states have internal predecessors, (4501), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:49,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:32:49,566 INFO L93 Difference]: Finished difference Result 4967 states and 9286 transitions. [2023-12-15 17:32:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:32:49,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:32:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:32:49,590 INFO L225 Difference]: With dead ends: 4967 [2023-12-15 17:32:49,591 INFO L226 Difference]: Without dead ends: 2538 [2023-12-15 17:32:49,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:32:49,603 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 851 mSDsluCounter, 12178 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 16408 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:32:49,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 16408 Invalid, 968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 17:32:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2023-12-15 17:32:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2428. [2023-12-15 17:32:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2394 states have (on average 1.840016708437761) internal successors, (4405), 2397 states have internal predecessors, (4405), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-15 17:32:49,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 4455 transitions. [2023-12-15 17:32:49,710 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 4455 transitions. Word has length 142 [2023-12-15 17:32:49,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:32:49,710 INFO L495 AbstractCegarLoop]: Abstraction has 2428 states and 4455 transitions. [2023-12-15 17:32:49,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:49,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 4455 transitions. [2023-12-15 17:32:49,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:32:49,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:32:49,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:49,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:32:49,713 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:32:49,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:32:49,714 INFO L85 PathProgramCache]: Analyzing trace with hash 133958425, now seen corresponding path program 1 times [2023-12-15 17:32:49,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:32:49,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912095788] [2023-12-15 17:32:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:32:49,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:32:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:32:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:49,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:32:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:32:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:49,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:32:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:32:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:49,980 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 17:32:49,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:32:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912095788] [2023-12-15 17:32:49,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912095788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:32:49,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:32:49,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:32:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071097575] [2023-12-15 17:32:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:32:49,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:32:49,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:32:49,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:32:49,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:32:49,983 INFO L87 Difference]: Start difference. First operand 2428 states and 4455 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:53,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:32:53,406 INFO L93 Difference]: Finished difference Result 3266 states and 5862 transitions. [2023-12-15 17:32:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:32:53,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:32:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:32:53,417 INFO L225 Difference]: With dead ends: 3266 [2023-12-15 17:32:53,418 INFO L226 Difference]: Without dead ends: 2975 [2023-12-15 17:32:53,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:32:53,420 INFO L413 NwaCegarLoop]: 4383 mSDtfsCounter, 5177 mSDsluCounter, 17236 mSDsCounter, 0 mSdLazyCounter, 3307 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5194 SdHoareTripleChecker+Valid, 21619 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:32:53,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5194 Valid, 21619 Invalid, 3373 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3307 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-15 17:32:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2023-12-15 17:32:53,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2736. [2023-12-15 17:32:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2673 states have (on average 1.8204264870931537) internal successors, (4866), 2678 states have internal predecessors, (4866), 47 states have call successors, (47), 13 states have call predecessors, (47), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2023-12-15 17:32:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 4965 transitions. [2023-12-15 17:32:53,494 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 4965 transitions. Word has length 142 [2023-12-15 17:32:53,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:32:53,495 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 4965 transitions. [2023-12-15 17:32:53,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 4965 transitions. [2023-12-15 17:32:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:32:53,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:32:53,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:53,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:32:53,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:32:53,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:32:53,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1916450473, now seen corresponding path program 1 times [2023-12-15 17:32:53,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:32:53,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049787263] [2023-12-15 17:32:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:32:53,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:32:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:53,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:32:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:32:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:32:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:32:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:32:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:53,713 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 17:32:53,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:32:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049787263] [2023-12-15 17:32:53,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049787263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:32:53,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:32:53,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:32:53,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233146710] [2023-12-15 17:32:53,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:32:53,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:32:53,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:32:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:32:53,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:32:53,716 INFO L87 Difference]: Start difference. First operand 2736 states and 4965 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:56,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:32:56,462 INFO L93 Difference]: Finished difference Result 4324 states and 7612 transitions. [2023-12-15 17:32:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:32:56,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:32:56,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:32:56,475 INFO L225 Difference]: With dead ends: 4324 [2023-12-15 17:32:56,475 INFO L226 Difference]: Without dead ends: 3727 [2023-12-15 17:32:56,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:32:56,478 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 5218 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 2999 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5235 SdHoareTripleChecker+Valid, 21504 SdHoareTripleChecker+Invalid, 3073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:32:56,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5235 Valid, 21504 Invalid, 3073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 2999 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 17:32:56,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2023-12-15 17:32:56,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3300. [2023-12-15 17:32:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.7886970172684458) internal successors, (5697), 3192 states have internal predecessors, (5697), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:32:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5882 transitions. [2023-12-15 17:32:56,573 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5882 transitions. Word has length 142 [2023-12-15 17:32:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:32:56,573 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 5882 transitions. [2023-12-15 17:32:56,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5882 transitions. [2023-12-15 17:32:56,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:32:56,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:32:56,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:56,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:32:56,577 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:32:56,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:32:56,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1428403367, now seen corresponding path program 1 times [2023-12-15 17:32:56,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:32:56,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196102328] [2023-12-15 17:32:56,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:32:56,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:32:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:32:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:32:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:32:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:32:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:56,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:32:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:56,796 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 17:32:56,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:32:56,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196102328] [2023-12-15 17:32:56,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196102328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:32:56,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:32:56,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:32:56,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41305176] [2023-12-15 17:32:56,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:32:56,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:32:56,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:32:56,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:32:56,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:32:56,801 INFO L87 Difference]: Start difference. First operand 3300 states and 5882 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:58,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:32:58,345 INFO L93 Difference]: Finished difference Result 4901 states and 8568 transitions. [2023-12-15 17:32:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:32:58,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:32:58,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:32:58,357 INFO L225 Difference]: With dead ends: 4901 [2023-12-15 17:32:58,358 INFO L226 Difference]: Without dead ends: 3738 [2023-12-15 17:32:58,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:32:58,361 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 4885 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 20718 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:32:58,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 20718 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:32:58,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2023-12-15 17:32:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3300. [2023-12-15 17:32:58,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.78712715855573) internal successors, (5692), 3192 states have internal predecessors, (5692), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:32:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5877 transitions. [2023-12-15 17:32:58,432 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5877 transitions. Word has length 142 [2023-12-15 17:32:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:32:58,432 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 5877 transitions. [2023-12-15 17:32:58,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5877 transitions. [2023-12-15 17:32:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:32:58,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:32:58,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:58,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:32:58,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:32:58,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:32:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1773928727, now seen corresponding path program 1 times [2023-12-15 17:32:58,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:32:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219062661] [2023-12-15 17:32:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:32:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:32:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:58,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:32:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:32:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:32:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:32:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:58,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:32:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:32:58,587 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 17:32:58,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:32:58,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219062661] [2023-12-15 17:32:58,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219062661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:32:58,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:32:58,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:32:58,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918181911] [2023-12-15 17:32:58,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:32:58,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:32:58,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:32:58,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:32:58,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:32:58,589 INFO L87 Difference]: Start difference. First operand 3300 states and 5877 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:32:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:32:59,981 INFO L93 Difference]: Finished difference Result 4897 states and 8547 transitions. [2023-12-15 17:32:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:32:59,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:32:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:32:59,993 INFO L225 Difference]: With dead ends: 4897 [2023-12-15 17:32:59,993 INFO L226 Difference]: Without dead ends: 3734 [2023-12-15 17:32:59,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:32:59,997 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 4883 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 20718 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:32:59,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4901 Valid, 20718 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:33:00,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2023-12-15 17:33:00,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3300. [2023-12-15 17:33:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.785557299843014) internal successors, (5687), 3192 states have internal predecessors, (5687), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:33:00,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5872 transitions. [2023-12-15 17:33:00,065 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5872 transitions. Word has length 142 [2023-12-15 17:33:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:00,066 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 5872 transitions. [2023-12-15 17:33:00,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5872 transitions. [2023-12-15 17:33:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:00,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:00,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:00,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:33:00,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:00,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:00,068 INFO L85 PathProgramCache]: Analyzing trace with hash 491756441, now seen corresponding path program 1 times [2023-12-15 17:33:00,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:00,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663073630] [2023-12-15 17:33:00,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:00,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:00,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:00,252 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 17:33:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663073630] [2023-12-15 17:33:00,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663073630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:00,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:00,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577344129] [2023-12-15 17:33:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:00,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:00,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:00,254 INFO L87 Difference]: Start difference. First operand 3300 states and 5872 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:01,525 INFO L93 Difference]: Finished difference Result 4892 states and 8524 transitions. [2023-12-15 17:33:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:01,538 INFO L225 Difference]: With dead ends: 4892 [2023-12-15 17:33:01,539 INFO L226 Difference]: Without dead ends: 3729 [2023-12-15 17:33:01,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:33:01,544 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 5011 mSDsluCounter, 12425 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 16611 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:01,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 16611 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 17:33:01,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2023-12-15 17:33:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3300. [2023-12-15 17:33:01,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.7839874411302983) internal successors, (5682), 3192 states have internal predecessors, (5682), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:33:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5867 transitions. [2023-12-15 17:33:01,719 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5867 transitions. Word has length 142 [2023-12-15 17:33:01,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:01,720 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 5867 transitions. [2023-12-15 17:33:01,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5867 transitions. [2023-12-15 17:33:01,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:01,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:01,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:01,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:33:01,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:01,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1350719273, now seen corresponding path program 1 times [2023-12-15 17:33:01,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:01,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669993598] [2023-12-15 17:33:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:01,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:01,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:01,909 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 17:33:01,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:01,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669993598] [2023-12-15 17:33:01,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669993598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:01,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:01,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:01,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656949969] [2023-12-15 17:33:01,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:01,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:01,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:01,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:01,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:01,911 INFO L87 Difference]: Start difference. First operand 3300 states and 5867 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:05,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:05,091 INFO L93 Difference]: Finished difference Result 6373 states and 10927 transitions. [2023-12-15 17:33:05,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:05,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:05,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:05,119 INFO L225 Difference]: With dead ends: 6373 [2023-12-15 17:33:05,119 INFO L226 Difference]: Without dead ends: 5212 [2023-12-15 17:33:05,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:05,124 INFO L413 NwaCegarLoop]: 4379 mSDtfsCounter, 5168 mSDsluCounter, 17236 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5185 SdHoareTripleChecker+Valid, 21615 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:05,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5185 Valid, 21615 Invalid, 3276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 17:33:05,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2023-12-15 17:33:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 4439. [2023-12-15 17:33:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4220 states have (on average 1.740047393364929) internal successors, (7343), 4231 states have internal predecessors, (7343), 161 states have call successors, (161), 49 states have call predecessors, (161), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2023-12-15 17:33:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 7706 transitions. [2023-12-15 17:33:05,226 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 7706 transitions. Word has length 142 [2023-12-15 17:33:05,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:05,226 INFO L495 AbstractCegarLoop]: Abstraction has 4439 states and 7706 transitions. [2023-12-15 17:33:05,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 7706 transitions. [2023-12-15 17:33:05,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:05,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:05,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:05,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:33:05,229 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:05,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:05,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1222245337, now seen corresponding path program 1 times [2023-12-15 17:33:05,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:05,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189725867] [2023-12-15 17:33:05,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:05,406 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 17:33:05,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:05,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189725867] [2023-12-15 17:33:05,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189725867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:05,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:05,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:05,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354659680] [2023-12-15 17:33:05,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:05,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:05,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:05,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:05,408 INFO L87 Difference]: Start difference. First operand 4439 states and 7706 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:06,718 INFO L93 Difference]: Finished difference Result 7548 states and 12863 transitions. [2023-12-15 17:33:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:06,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:06,732 INFO L225 Difference]: With dead ends: 7548 [2023-12-15 17:33:06,732 INFO L226 Difference]: Without dead ends: 5246 [2023-12-15 17:33:06,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:33:06,740 INFO L413 NwaCegarLoop]: 4186 mSDtfsCounter, 5016 mSDsluCounter, 12425 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 16611 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:06,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 16611 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 17:33:06,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5246 states. [2023-12-15 17:33:06,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5246 to 4439. [2023-12-15 17:33:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4220 states have (on average 1.7379146919431279) internal successors, (7334), 4231 states have internal predecessors, (7334), 161 states have call successors, (161), 49 states have call predecessors, (161), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2023-12-15 17:33:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 7697 transitions. [2023-12-15 17:33:06,873 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 7697 transitions. Word has length 142 [2023-12-15 17:33:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:06,875 INFO L495 AbstractCegarLoop]: Abstraction has 4439 states and 7697 transitions. [2023-12-15 17:33:06,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 7697 transitions. [2023-12-15 17:33:06,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:06,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:06,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:06,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:33:06,878 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:06,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:06,879 INFO L85 PathProgramCache]: Analyzing trace with hash 889602199, now seen corresponding path program 1 times [2023-12-15 17:33:06,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:06,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988924858] [2023-12-15 17:33:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:06,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:07,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:07,058 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 17:33:07,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:07,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988924858] [2023-12-15 17:33:07,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988924858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:07,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:07,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790972743] [2023-12-15 17:33:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:07,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:07,060 INFO L87 Difference]: Start difference. First operand 4439 states and 7697 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:09,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:09,895 INFO L93 Difference]: Finished difference Result 10480 states and 17612 transitions. [2023-12-15 17:33:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:09,915 INFO L225 Difference]: With dead ends: 10480 [2023-12-15 17:33:09,915 INFO L226 Difference]: Without dead ends: 8180 [2023-12-15 17:33:09,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:09,923 INFO L413 NwaCegarLoop]: 4380 mSDtfsCounter, 5200 mSDsluCounter, 17236 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5217 SdHoareTripleChecker+Valid, 21616 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:09,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5217 Valid, 21616 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 17:33:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2023-12-15 17:33:10,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 6739. [2023-12-15 17:33:10,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6312 states have (on average 1.692173637515843) internal successors, (10681), 6331 states have internal predecessors, (10681), 313 states have call successors, (313), 97 states have call predecessors, (313), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2023-12-15 17:33:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 11418 transitions. [2023-12-15 17:33:10,196 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 11418 transitions. Word has length 142 [2023-12-15 17:33:10,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:10,197 INFO L495 AbstractCegarLoop]: Abstraction has 6739 states and 11418 transitions. [2023-12-15 17:33:10,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:10,197 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 11418 transitions. [2023-12-15 17:33:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:10,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:10,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:10,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:33:10,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:10,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:10,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1403478827, now seen corresponding path program 1 times [2023-12-15 17:33:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:10,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5568584] [2023-12-15 17:33:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:10,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:10,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:10,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:10,363 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 17:33:10,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:10,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5568584] [2023-12-15 17:33:10,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5568584] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:10,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:10,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539073212] [2023-12-15 17:33:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:10,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:10,364 INFO L87 Difference]: Start difference. First operand 6739 states and 11418 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:13,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:13,085 INFO L93 Difference]: Finished difference Result 18724 states and 31133 transitions. [2023-12-15 17:33:13,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:13,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:13,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:13,127 INFO L225 Difference]: With dead ends: 18724 [2023-12-15 17:33:13,127 INFO L226 Difference]: Without dead ends: 14124 [2023-12-15 17:33:13,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:13,147 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 5226 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 21504 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:13,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5243 Valid, 21504 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 17:33:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14124 states. [2023-12-15 17:33:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14124 to 11355. [2023-12-15 17:33:13,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11355 states, 10512 states have (on average 1.65515601217656) internal successors, (17399), 10547 states have internal predecessors, (17399), 617 states have call successors, (617), 193 states have call predecessors, (617), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2023-12-15 17:33:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11355 states to 11355 states and 18938 transitions. [2023-12-15 17:33:13,628 INFO L78 Accepts]: Start accepts. Automaton has 11355 states and 18938 transitions. Word has length 142 [2023-12-15 17:33:13,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:13,628 INFO L495 AbstractCegarLoop]: Abstraction has 11355 states and 18938 transitions. [2023-12-15 17:33:13,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 11355 states and 18938 transitions. [2023-12-15 17:33:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:13,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:13,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:13,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:33:13,636 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:13,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 323666135, now seen corresponding path program 1 times [2023-12-15 17:33:13,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:13,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535342357] [2023-12-15 17:33:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:13,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,798 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 17:33:13,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:13,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535342357] [2023-12-15 17:33:13,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535342357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:13,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:13,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:13,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205867706] [2023-12-15 17:33:13,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:13,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:13,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:13,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:13,800 INFO L87 Difference]: Start difference. First operand 11355 states and 18938 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:17,039 INFO L93 Difference]: Finished difference Result 39308 states and 64993 transitions. [2023-12-15 17:33:17,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:33:17,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:17,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:17,109 INFO L225 Difference]: With dead ends: 39308 [2023-12-15 17:33:17,109 INFO L226 Difference]: Without dead ends: 30092 [2023-12-15 17:33:17,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:33:17,131 INFO L413 NwaCegarLoop]: 4378 mSDtfsCounter, 5566 mSDsluCounter, 17231 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 21609 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:17,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5594 Valid, 21609 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 17:33:17,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30092 states. [2023-12-15 17:33:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30092 to 20555. [2023-12-15 17:33:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20555 states, 18912 states have (on average 1.6312923011844331) internal successors, (30851), 18979 states have internal predecessors, (30851), 1193 states have call successors, (1193), 385 states have call predecessors, (1193), 448 states have return successors, (2048), 1254 states have call predecessors, (2048), 1191 states have call successors, (2048) [2023-12-15 17:33:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20555 states to 20555 states and 34092 transitions. [2023-12-15 17:33:17,772 INFO L78 Accepts]: Start accepts. Automaton has 20555 states and 34092 transitions. Word has length 142 [2023-12-15 17:33:17,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:17,772 INFO L495 AbstractCegarLoop]: Abstraction has 20555 states and 34092 transitions. [2023-12-15 17:33:17,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand 20555 states and 34092 transitions. [2023-12-15 17:33:17,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:17,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:17,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:17,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:33:17,782 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:17,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:17,782 INFO L85 PathProgramCache]: Analyzing trace with hash 795022485, now seen corresponding path program 1 times [2023-12-15 17:33:17,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:17,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532406344] [2023-12-15 17:33:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:17,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,935 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 17:33:17,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:17,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532406344] [2023-12-15 17:33:17,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532406344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:17,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:17,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:17,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118572796] [2023-12-15 17:33:17,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:17,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:17,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:17,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:17,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:17,937 INFO L87 Difference]: Start difference. First operand 20555 states and 34092 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:21,984 INFO L93 Difference]: Finished difference Result 75484 states and 125245 transitions. [2023-12-15 17:33:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:33:21,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:22,145 INFO L225 Difference]: With dead ends: 75484 [2023-12-15 17:33:22,145 INFO L226 Difference]: Without dead ends: 57068 [2023-12-15 17:33:22,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:33:22,189 INFO L413 NwaCegarLoop]: 4377 mSDtfsCounter, 5285 mSDsluCounter, 17228 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5301 SdHoareTripleChecker+Valid, 21605 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:22,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5301 Valid, 21605 Invalid, 3678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-15 17:33:22,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57068 states. [2023-12-15 17:33:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57068 to 38315. [2023-12-15 17:33:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38315 states, 35104 states have (on average 1.614260483135825) internal successors, (56667), 35235 states have internal predecessors, (56667), 2313 states have call successors, (2313), 769 states have call predecessors, (2313), 896 states have return successors, (4754), 2438 states have call predecessors, (4754), 2311 states have call successors, (4754) [2023-12-15 17:33:23,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38315 states to 38315 states and 63734 transitions. [2023-12-15 17:33:23,713 INFO L78 Accepts]: Start accepts. Automaton has 38315 states and 63734 transitions. Word has length 142 [2023-12-15 17:33:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:23,714 INFO L495 AbstractCegarLoop]: Abstraction has 38315 states and 63734 transitions. [2023-12-15 17:33:23,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:23,714 INFO L276 IsEmpty]: Start isEmpty. Operand 38315 states and 63734 transitions. [2023-12-15 17:33:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:23,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:23,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:23,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:33:23,746 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:23,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash -852340457, now seen corresponding path program 1 times [2023-12-15 17:33:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578158951] [2023-12-15 17:33:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:23,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,013 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 17:33:24,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:24,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578158951] [2023-12-15 17:33:24,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578158951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:24,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:24,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:24,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462062426] [2023-12-15 17:33:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:24,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:24,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:24,015 INFO L87 Difference]: Start difference. First operand 38315 states and 63734 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:28,783 INFO L93 Difference]: Finished difference Result 145020 states and 242573 transitions. [2023-12-15 17:33:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:33:28,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-15 17:33:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:29,184 INFO L225 Difference]: With dead ends: 145020 [2023-12-15 17:33:29,185 INFO L226 Difference]: Without dead ends: 108844 [2023-12-15 17:33:29,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:33:29,311 INFO L413 NwaCegarLoop]: 4378 mSDtfsCounter, 5498 mSDsluCounter, 17231 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5526 SdHoareTripleChecker+Valid, 21609 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:29,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5526 Valid, 21609 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 17:33:29,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108844 states. [2023-12-15 17:33:32,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108844 to 74475. [2023-12-15 17:33:32,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74475 states, 68192 states have (on average 1.606918700140779) internal successors, (109579), 68451 states have internal predecessors, (109579), 4489 states have call successors, (4489), 1537 states have call predecessors, (4489), 1792 states have return successors, (11560), 4742 states have call predecessors, (11560), 4487 states have call successors, (11560) [2023-12-15 17:33:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74475 states to 74475 states and 125628 transitions. [2023-12-15 17:33:32,364 INFO L78 Accepts]: Start accepts. Automaton has 74475 states and 125628 transitions. Word has length 142 [2023-12-15 17:33:32,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:32,365 INFO L495 AbstractCegarLoop]: Abstraction has 74475 states and 125628 transitions. [2023-12-15 17:33:32,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand 74475 states and 125628 transitions. [2023-12-15 17:33:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 17:33:32,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:32,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:32,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:33:32,622 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:32,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1311276117, now seen corresponding path program 1 times [2023-12-15 17:33:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:32,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367737031] [2023-12-15 17:33:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:33:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:33:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:33:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:33:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,828 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 17:33:32,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:32,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367737031] [2023-12-15 17:33:32,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367737031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:32,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:32,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:32,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605869206] [2023-12-15 17:33:32,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:32,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:32,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:32,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:32,829 INFO L87 Difference]: Start difference. First operand 74475 states and 125628 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-15 17:33:35,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:35,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:35,331 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1555 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:35,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 1759 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:33:35,333 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:33:35,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:33:35,334 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (74475states) and FLOYD_HOARE automaton (currently 14 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (24390 states constructed, input type IntersectNwa). [2023-12-15 17:33:35,336 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:33:35,339 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:33:35,340 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:33:35,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:33:35 BoogieIcfgContainer [2023-12-15 17:33:35,346 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:33:35,346 INFO L158 Benchmark]: Toolchain (without parser) took 56913.31ms. Allocated memory was 230.7MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 144.3MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-15 17:33:35,346 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory was 117.8MB in the beginning and 117.7MB in the end (delta: 141.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:33:35,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2172.47ms. Allocated memory is still 230.7MB. Free memory was 143.8MB in the beginning and 78.4MB in the end (delta: 65.3MB). Peak memory consumption was 126.7MB. Max. memory is 8.0GB. [2023-12-15 17:33:35,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 438.91ms. Allocated memory was 230.7MB in the beginning and 325.1MB in the end (delta: 94.4MB). Free memory was 78.4MB in the beginning and 182.2MB in the end (delta: -103.8MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2023-12-15 17:33:35,347 INFO L158 Benchmark]: Boogie Preprocessor took 483.72ms. Allocated memory is still 325.1MB. Free memory was 182.2MB in the beginning and 133.5MB in the end (delta: 48.8MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. [2023-12-15 17:33:35,348 INFO L158 Benchmark]: RCFGBuilder took 6119.57ms. Allocated memory was 325.1MB in the beginning and 1.0GB in the end (delta: 704.6MB). Free memory was 133.5MB in the beginning and 740.1MB in the end (delta: -606.6MB). Peak memory consumption was 294.6MB. Max. memory is 8.0GB. [2023-12-15 17:33:35,348 INFO L158 Benchmark]: TraceAbstraction took 47692.15ms. Allocated memory was 1.0GB in the beginning and 3.4GB in the end (delta: 2.4GB). Free memory was 739.6MB in the beginning and 2.6GB in the end (delta: -1.9GB). Peak memory consumption was 828.9MB. Max. memory is 8.0GB. [2023-12-15 17:33:35,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 165.7MB. Free memory was 117.8MB in the beginning and 117.7MB in the end (delta: 141.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2172.47ms. Allocated memory is still 230.7MB. Free memory was 143.8MB in the beginning and 78.4MB in the end (delta: 65.3MB). Peak memory consumption was 126.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 438.91ms. Allocated memory was 230.7MB in the beginning and 325.1MB in the end (delta: 94.4MB). Free memory was 78.4MB in the beginning and 182.2MB in the end (delta: -103.8MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 483.72ms. Allocated memory is still 325.1MB. Free memory was 182.2MB in the beginning and 133.5MB in the end (delta: 48.8MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. * RCFGBuilder took 6119.57ms. Allocated memory was 325.1MB in the beginning and 1.0GB in the end (delta: 704.6MB). Free memory was 133.5MB in the beginning and 740.1MB in the end (delta: -606.6MB). Peak memory consumption was 294.6MB. Max. memory is 8.0GB. * TraceAbstraction took 47692.15ms. Allocated memory was 1.0GB in the beginning and 3.4GB in the end (delta: 2.4GB). Free memory was 739.6MB in the beginning and 2.6GB in the end (delta: -1.9GB). Peak memory consumption was 828.9MB. 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: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (74475states) and FLOYD_HOARE automaton (currently 14 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (24390 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11049]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11049). Cancelled while NwaCegarLoop was constructing difference of abstraction (74475states) and FLOYD_HOARE automaton (currently 14 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (24390 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2433 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 37.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64793 SdHoareTripleChecker+Valid, 23.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64539 mSDsluCounter, 265506 SdHoareTripleChecker+Invalid, 20.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 209231 mSDsCounter, 949 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34153 IncrementalHoareTripleChecker+Invalid, 35102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 949 mSolverCounterUnsat, 56275 mSDtfsCounter, 34153 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74475occurred in iteration=13, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 70526 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1988 NumberOfCodeBlocks, 1988 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1974 ConstructedInterpolants, 0 QuantifiedInterpolants, 5897 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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