/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 01:35:01,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 01:35:01,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 01:35:01,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 01:35:01,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 01:35:01,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 01:35:01,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 01:35:01,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 01:35:01,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 01:35:01,883 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 01:35:01,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 01:35:01,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 01:35:01,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 01:35:01,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 01:35:01,884 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 01:35:01,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 01:35:01,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 01:35:01,885 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 01:35:01,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 01:35:01,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 01:35:01,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 01:35:01,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 01:35:01,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 01:35:01,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 01:35:01,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 01:35:01,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 01:35:01,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 01:35:01,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 01:35:01,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 01:35:01,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 01:35:01,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 01:35:01,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 01:35:01,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:35:01,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 01:35:01,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 01:35:01,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 01:35:01,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 01:35:01,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 01:35:01,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 01:35:01,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 01:35:01,890 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 01:35:01,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 01:35:01,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 01:35:01,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 01:35:02,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 01:35:02,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 01:35:02,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 01:35:02,114 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 01:35:02,115 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 01:35:02,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-66.i [2023-12-21 01:35:03,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 01:35:03,292 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 01:35:03,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-66.i [2023-12-21 01:35:03,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f6c9b8cf/9988f12a595e4ac480da9a518d1fa4a5/FLAG82980b655 [2023-12-21 01:35:03,313 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f6c9b8cf/9988f12a595e4ac480da9a518d1fa4a5 [2023-12-21 01:35:03,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 01:35:03,316 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 01:35:03,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 01:35:03,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 01:35:03,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 01:35:03,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3cb9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03, skipping insertion in model container [2023-12-21 01:35:03,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,348 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 01:35:03,466 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-66.i[913,926] [2023-12-21 01:35:03,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:35:03,504 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 01:35:03,512 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-66.i[913,926] [2023-12-21 01:35:03,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:35:03,544 INFO L206 MainTranslator]: Completed translation [2023-12-21 01:35:03,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03 WrapperNode [2023-12-21 01:35:03,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 01:35:03,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 01:35:03,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 01:35:03,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 01:35:03,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,621 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-12-21 01:35:03,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 01:35:03,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 01:35:03,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 01:35:03,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 01:35:03,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,648 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]. [2023-12-21 01:35:03,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 01:35:03,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 01:35:03,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 01:35:03,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 01:35:03,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (1/1) ... [2023-12-21 01:35:03,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:35:03,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:35:03,703 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) [2023-12-21 01:35:03,733 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 [2023-12-21 01:35:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 01:35:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 01:35:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 01:35:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 01:35:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 01:35:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 01:35:03,818 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 01:35:03,820 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 01:35:04,053 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 01:35:04,082 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 01:35:04,083 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 01:35:04,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:35:04 BoogieIcfgContainer [2023-12-21 01:35:04,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 01:35:04,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 01:35:04,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 01:35:04,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 01:35:04,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:35:03" (1/3) ... [2023-12-21 01:35:04,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e51b006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:35:04, skipping insertion in model container [2023-12-21 01:35:04,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:03" (2/3) ... [2023-12-21 01:35:04,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e51b006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:35:04, skipping insertion in model container [2023-12-21 01:35:04,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:35:04" (3/3) ... [2023-12-21 01:35:04,089 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-66.i [2023-12-21 01:35:04,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 01:35:04,101 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 01:35:04,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 01:35:04,138 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;@6b0ed9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 01:35:04,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 01:35:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:35:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 01:35:04,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:04,156 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:04,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:04,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1944780512, now seen corresponding path program 1 times [2023-12-21 01:35:04,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:04,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943013615] [2023-12-21 01:35:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:04,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:04,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943013615] [2023-12-21 01:35:04,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943013615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:04,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:04,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 01:35:04,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737273343] [2023-12-21 01:35:04,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:04,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 01:35:04,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 01:35:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:35:04,484 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:35:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:04,514 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2023-12-21 01:35:04,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 01:35:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2023-12-21 01:35:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:04,521 INFO L225 Difference]: With dead ends: 75 [2023-12-21 01:35:04,521 INFO L226 Difference]: Without dead ends: 37 [2023-12-21 01:35:04,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:35:04,526 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:04,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:35:04,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-21 01:35:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-21 01:35:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:35:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2023-12-21 01:35:04,554 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 85 [2023-12-21 01:35:04,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:04,554 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2023-12-21 01:35:04,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:35:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-12-21 01:35:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 01:35:04,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:04,557 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:04,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 01:35:04,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:04,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1661919200, now seen corresponding path program 1 times [2023-12-21 01:35:04,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:04,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494284114] [2023-12-21 01:35:04,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:04,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:04,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:04,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494284114] [2023-12-21 01:35:04,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494284114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:04,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:04,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:35:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830099192] [2023-12-21 01:35:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:04,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:35:04,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:04,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:35:04,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:35:04,961 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:05,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:05,010 INFO L93 Difference]: Finished difference Result 109 states and 163 transitions. [2023-12-21 01:35:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:35:05,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2023-12-21 01:35:05,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:05,019 INFO L225 Difference]: With dead ends: 109 [2023-12-21 01:35:05,019 INFO L226 Difference]: Without dead ends: 73 [2023-12-21 01:35:05,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:35:05,021 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:05,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:35:05,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-21 01:35:05,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2023-12-21 01:35:05,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 01:35:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 104 transitions. [2023-12-21 01:35:05,037 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 104 transitions. Word has length 85 [2023-12-21 01:35:05,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:05,038 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 104 transitions. [2023-12-21 01:35:05,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 104 transitions. [2023-12-21 01:35:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 01:35:05,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:05,039 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:05,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 01:35:05,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:05,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash -20088315, now seen corresponding path program 1 times [2023-12-21 01:35:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:05,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096930655] [2023-12-21 01:35:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:05,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096930655] [2023-12-21 01:35:05,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096930655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:05,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:05,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:35:05,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956758321] [2023-12-21 01:35:05,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:05,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:35:05,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:05,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:35:05,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:35:05,481 INFO L87 Difference]: Start difference. First operand 70 states and 104 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:35:05,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:05,655 INFO L93 Difference]: Finished difference Result 183 states and 271 transitions. [2023-12-21 01:35:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:35:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2023-12-21 01:35:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:05,659 INFO L225 Difference]: With dead ends: 183 [2023-12-21 01:35:05,659 INFO L226 Difference]: Without dead ends: 114 [2023-12-21 01:35:05,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:35:05,665 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:05,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 162 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:35:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-21 01:35:05,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2023-12-21 01:35:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2023-12-21 01:35:05,699 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 86 [2023-12-21 01:35:05,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:05,701 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2023-12-21 01:35:05,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:35:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2023-12-21 01:35:05,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 01:35:05,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:05,703 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:05,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 01:35:05,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:05,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:05,703 INFO L85 PathProgramCache]: Analyzing trace with hash -20147897, now seen corresponding path program 1 times [2023-12-21 01:35:05,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584130999] [2023-12-21 01:35:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:09,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:09,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584130999] [2023-12-21 01:35:09,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584130999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:09,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:09,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:35:09,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962745822] [2023-12-21 01:35:09,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:09,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:35:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:09,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:35:09,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:35:09,142 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:35:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:09,729 INFO L93 Difference]: Finished difference Result 110 states and 161 transitions. [2023-12-21 01:35:09,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:35:09,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2023-12-21 01:35:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:09,732 INFO L225 Difference]: With dead ends: 110 [2023-12-21 01:35:09,732 INFO L226 Difference]: Without dead ends: 108 [2023-12-21 01:35:09,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 01:35:09,733 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:09,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:35:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-21 01:35:09,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2023-12-21 01:35:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2023-12-21 01:35:09,742 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 86 [2023-12-21 01:35:09,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:09,743 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2023-12-21 01:35:09,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:35:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2023-12-21 01:35:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 01:35:09,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:09,744 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:09,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 01:35:09,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:09,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1204557765, now seen corresponding path program 1 times [2023-12-21 01:35:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130282991] [2023-12-21 01:35:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:13,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130282991] [2023-12-21 01:35:13,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130282991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:13,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:13,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 01:35:13,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027127338] [2023-12-21 01:35:13,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:13,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:35:13,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:13,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:35:13,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:35:13,385 INFO L87 Difference]: Start difference. First operand 106 states and 157 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:14,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:14,484 INFO L93 Difference]: Finished difference Result 146 states and 208 transitions. [2023-12-21 01:35:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 01:35:14,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-21 01:35:14,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:14,485 INFO L225 Difference]: With dead ends: 146 [2023-12-21 01:35:14,486 INFO L226 Difference]: Without dead ends: 144 [2023-12-21 01:35:14,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-12-21 01:35:14,486 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 110 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:14,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 231 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:35:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-21 01:35:14,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 113. [2023-12-21 01:35:14,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 169 transitions. [2023-12-21 01:35:14,500 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 169 transitions. Word has length 86 [2023-12-21 01:35:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:14,500 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 169 transitions. [2023-12-21 01:35:14,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 169 transitions. [2023-12-21 01:35:14,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 01:35:14,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:14,501 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:14,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 01:35:14,502 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:14,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:14,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1206404807, now seen corresponding path program 1 times [2023-12-21 01:35:14,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:14,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042293023] [2023-12-21 01:35:14,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:14,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:14,608 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:14,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:14,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042293023] [2023-12-21 01:35:14,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042293023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:14,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:14,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:35:14,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647793488] [2023-12-21 01:35:14,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:14,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:35:14,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:14,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:35:14,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:35:14,609 INFO L87 Difference]: Start difference. First operand 113 states and 169 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:14,690 INFO L93 Difference]: Finished difference Result 186 states and 266 transitions. [2023-12-21 01:35:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:35:14,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-21 01:35:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:14,692 INFO L225 Difference]: With dead ends: 186 [2023-12-21 01:35:14,692 INFO L226 Difference]: Without dead ends: 148 [2023-12-21 01:35:14,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:35:14,693 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:14,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 140 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:35:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-21 01:35:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 126. [2023-12-21 01:35:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 77 states have internal predecessors, (93), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 177 transitions. [2023-12-21 01:35:14,705 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 177 transitions. Word has length 86 [2023-12-21 01:35:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:14,705 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 177 transitions. [2023-12-21 01:35:14,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 177 transitions. [2023-12-21 01:35:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 01:35:14,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:14,706 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:14,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 01:35:14,706 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:14,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:14,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1261816067, now seen corresponding path program 1 times [2023-12-21 01:35:14,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:14,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518602450] [2023-12-21 01:35:14,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:14,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:21,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:21,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518602450] [2023-12-21 01:35:21,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518602450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:21,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:21,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 01:35:21,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253465628] [2023-12-21 01:35:21,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:21,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:35:21,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:21,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:35:21,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:35:21,578 INFO L87 Difference]: Start difference. First operand 126 states and 177 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:22,232 INFO L93 Difference]: Finished difference Result 165 states and 221 transitions. [2023-12-21 01:35:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 01:35:22,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-21 01:35:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:22,235 INFO L225 Difference]: With dead ends: 165 [2023-12-21 01:35:22,235 INFO L226 Difference]: Without dead ends: 163 [2023-12-21 01:35:22,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-21 01:35:22,237 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 93 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:22,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 226 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:35:22,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-21 01:35:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 131. [2023-12-21 01:35:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 81 states have internal predecessors, (98), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 182 transitions. [2023-12-21 01:35:22,258 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 182 transitions. Word has length 86 [2023-12-21 01:35:22,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:22,258 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 182 transitions. [2023-12-21 01:35:22,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 182 transitions. [2023-12-21 01:35:22,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 01:35:22,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:22,259 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:22,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 01:35:22,259 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:22,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1263663109, now seen corresponding path program 1 times [2023-12-21 01:35:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:22,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275644811] [2023-12-21 01:35:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:22,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:23,759 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:23,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:23,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275644811] [2023-12-21 01:35:23,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275644811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:23,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:23,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:35:23,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368402559] [2023-12-21 01:35:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:23,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:35:23,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:35:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:35:23,760 INFO L87 Difference]: Start difference. First operand 131 states and 182 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:24,312 INFO L93 Difference]: Finished difference Result 206 states and 280 transitions. [2023-12-21 01:35:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 01:35:24,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-21 01:35:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:24,317 INFO L225 Difference]: With dead ends: 206 [2023-12-21 01:35:24,317 INFO L226 Difference]: Without dead ends: 165 [2023-12-21 01:35:24,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-12-21 01:35:24,318 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 75 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:24,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 259 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:35:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-21 01:35:24,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 129. [2023-12-21 01:35:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 79 states have internal predecessors, (94), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:24,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 178 transitions. [2023-12-21 01:35:24,331 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 178 transitions. Word has length 86 [2023-12-21 01:35:24,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:24,332 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 178 transitions. [2023-12-21 01:35:24,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2023-12-21 01:35:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 01:35:24,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:24,332 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:24,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 01:35:24,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:24,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1313450494, now seen corresponding path program 1 times [2023-12-21 01:35:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:24,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716293808] [2023-12-21 01:35:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:24,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:26,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716293808] [2023-12-21 01:35:26,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716293808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:26,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:26,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 01:35:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594304632] [2023-12-21 01:35:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:26,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:35:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:35:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:35:26,032 INFO L87 Difference]: Start difference. First operand 129 states and 178 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:26,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:26,861 INFO L93 Difference]: Finished difference Result 154 states and 206 transitions. [2023-12-21 01:35:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 01:35:26,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-21 01:35:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:26,862 INFO L225 Difference]: With dead ends: 154 [2023-12-21 01:35:26,862 INFO L226 Difference]: Without dead ends: 152 [2023-12-21 01:35:26,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2023-12-21 01:35:26,863 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 73 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:26,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 229 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:35:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-21 01:35:26,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 131. [2023-12-21 01:35:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 81 states have internal predecessors, (97), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:26,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 181 transitions. [2023-12-21 01:35:26,875 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 181 transitions. Word has length 87 [2023-12-21 01:35:26,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:26,875 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 181 transitions. [2023-12-21 01:35:26,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:26,876 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 181 transitions. [2023-12-21 01:35:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 01:35:26,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:26,876 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:26,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 01:35:26,876 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:26,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:26,877 INFO L85 PathProgramCache]: Analyzing trace with hash 461556868, now seen corresponding path program 1 times [2023-12-21 01:35:26,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:26,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384335412] [2023-12-21 01:35:26,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:35:29,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:29,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384335412] [2023-12-21 01:35:29,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384335412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:35:29,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:35:29,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 01:35:29,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957397956] [2023-12-21 01:35:29,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:35:29,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 01:35:29,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 01:35:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:35:29,634 INFO L87 Difference]: Start difference. First operand 131 states and 181 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:30,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:30,744 INFO L93 Difference]: Finished difference Result 150 states and 200 transitions. [2023-12-21 01:35:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 01:35:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-21 01:35:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:30,746 INFO L225 Difference]: With dead ends: 150 [2023-12-21 01:35:30,746 INFO L226 Difference]: Without dead ends: 148 [2023-12-21 01:35:30,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-12-21 01:35:30,747 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 77 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:30,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 228 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 01:35:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-21 01:35:30,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2023-12-21 01:35:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 79 states have internal predecessors, (94), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 178 transitions. [2023-12-21 01:35:30,761 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 178 transitions. Word has length 87 [2023-12-21 01:35:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:30,761 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 178 transitions. [2023-12-21 01:35:30,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:35:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2023-12-21 01:35:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-21 01:35:30,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:30,763 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:30,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 01:35:30,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:30,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:30,763 INFO L85 PathProgramCache]: Analyzing trace with hash 324235561, now seen corresponding path program 1 times [2023-12-21 01:35:30,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:30,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812521517] [2023-12-21 01:35:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:30,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 01:35:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 01:35:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 01:35:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 01:35:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 01:35:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 01:35:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 01:35:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 01:35:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 01:35:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:35:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:35:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 01:35:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 01:35:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 01:35:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 01:35:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:34,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812521517] [2023-12-21 01:35:34,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812521517] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:35:34,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452728553] [2023-12-21 01:35:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:34,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:35:34,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:35:34,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:35:34,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 01:35:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:34,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 01:35:34,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:35:34,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 914 proven. 33 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-12-21 01:35:34,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:35:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 31 proven. 75 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2023-12-21 01:35:34,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452728553] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:35:34,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 01:35:34,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 21 [2023-12-21 01:35:34,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230923516] [2023-12-21 01:35:34,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 01:35:34,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 01:35:34,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:35:34,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 01:35:34,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-12-21 01:35:34,616 INFO L87 Difference]: Start difference. First operand 129 states and 178 transitions. Second operand has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-12-21 01:35:39,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:35:39,142 INFO L93 Difference]: Finished difference Result 288 states and 378 transitions. [2023-12-21 01:35:39,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-21 01:35:39,143 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) Word has length 170 [2023-12-21 01:35:39,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:35:39,144 INFO L225 Difference]: With dead ends: 288 [2023-12-21 01:35:39,144 INFO L226 Difference]: Without dead ends: 245 [2023-12-21 01:35:39,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1611 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=825, Invalid=4577, Unknown=0, NotChecked=0, Total=5402 [2023-12-21 01:35:39,146 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 395 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 01:35:39,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 363 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 01:35:39,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-21 01:35:39,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 144. [2023-12-21 01:35:39,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 90 states have internal predecessors, (103), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-21 01:35:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2023-12-21 01:35:39,164 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 170 [2023-12-21 01:35:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:35:39,164 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2023-12-21 01:35:39,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-12-21 01:35:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2023-12-21 01:35:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-21 01:35:39,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:35:39,167 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:35:39,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 01:35:39,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-21 01:35:39,373 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:35:39,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:35:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash -774169141, now seen corresponding path program 1 times [2023-12-21 01:35:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:35:39,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737812725] [2023-12-21 01:35:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:39,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:35:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 01:35:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 01:35:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 01:35:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 01:35:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 01:35:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 01:35:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 01:35:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 01:35:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 01:35:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 01:35:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 01:35:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 01:35:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 01:35:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 01:35:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 01:35:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 01:35:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 01:35:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 01:35:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 01:35:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 01:35:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 01:35:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 01:35:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 01:35:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 01:35:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 01:35:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 01:35:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 01:35:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 01:35:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-21 01:35:41,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:35:41,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737812725] [2023-12-21 01:35:41,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737812725] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 01:35:41,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173220091] [2023-12-21 01:35:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:35:41,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:35:41,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:35:41,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:35:41,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 01:35:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:35:41,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-21 01:35:41,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-21 01:49:28,615 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 01:49:28,626 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 01:49:28,626 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 01:49:28,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:28,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-21 01:49:28,821 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 173 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-19-2-2-2-2-2-2-2-3-2-3-2-3-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-63-3-3-3-3-3-2-3-3-4-3-4-3-4-4-4-3-3-3-3-4-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 context. [2023-12-21 01:49:28,824 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:28,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 01:49:28,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:49:28 BoogieIcfgContainer [2023-12-21 01:49:28,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 01:49:28,827 INFO L158 Benchmark]: Toolchain (without parser) took 865511.40ms. Allocated memory was 215.0MB in the beginning and 887.1MB in the end (delta: 672.1MB). Free memory was 151.1MB in the beginning and 832.9MB in the end (delta: -681.8MB). Peak memory consumption was 515.8MB. Max. memory is 8.0GB. [2023-12-21 01:49:28,827 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 01:49:28,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.27ms. Allocated memory is still 215.0MB. Free memory was 150.9MB in the beginning and 137.9MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-21 01:49:28,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.57ms. Allocated memory was 215.0MB in the beginning and 316.7MB in the end (delta: 101.7MB). Free memory was 137.9MB in the beginning and 282.2MB in the end (delta: -144.3MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. [2023-12-21 01:49:28,828 INFO L158 Benchmark]: Boogie Preprocessor took 38.89ms. Allocated memory is still 316.7MB. Free memory was 282.2MB in the beginning and 276.2MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-21 01:49:28,828 INFO L158 Benchmark]: RCFGBuilder took 421.23ms. Allocated memory is still 316.7MB. Free memory was 276.2MB in the beginning and 256.3MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-21 01:49:28,828 INFO L158 Benchmark]: TraceAbstraction took 864742.50ms. Allocated memory was 316.7MB in the beginning and 887.1MB in the end (delta: 570.4MB). Free memory was 255.7MB in the beginning and 832.9MB in the end (delta: -577.2MB). Peak memory consumption was 518.1MB. Max. memory is 8.0GB. [2023-12-21 01:49:28,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.27ms. Allocated memory is still 215.0MB. Free memory was 150.9MB in the beginning and 137.9MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.57ms. Allocated memory was 215.0MB in the beginning and 316.7MB in the end (delta: 101.7MB). Free memory was 137.9MB in the beginning and 282.2MB in the end (delta: -144.3MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.89ms. Allocated memory is still 316.7MB. Free memory was 282.2MB in the beginning and 276.2MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 421.23ms. Allocated memory is still 316.7MB. Free memory was 276.2MB in the beginning and 256.3MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 864742.50ms. Allocated memory was 316.7MB in the beginning and 887.1MB in the end (delta: 570.4MB). Free memory was 255.7MB in the beginning and 832.9MB in the end (delta: -577.2MB). Peak memory consumption was 518.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 173 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-19-2-2-2-2-2-2-2-3-2-3-2-3-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-63-3-3-3-3-3-2-3-3-4-3-4-3-4-4-4-3-3-3-3-4-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 864.7s, OverallIterations: 12, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1035 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1032 mSDsluCounter, 2181 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1599 mSDsCounter, 547 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2561 IncrementalHoareTripleChecker+Invalid, 3108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 547 mSolverCounterUnsat, 582 mSDtfsCounter, 2561 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 924 GetRequests, 741 SyntacticMatches, 1 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1853 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=11, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 277 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 24.3s InterpolantComputationTime, 1200 NumberOfCodeBlocks, 1200 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1357 ConstructedInterpolants, 0 QuantifiedInterpolants, 9346 SizeOfPredicates, 4 NumberOfNonLiveVariables, 384 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 8122/8257 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