/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/recursive/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:57:52,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:57:52,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:57:52,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:57:52,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:57:52,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:57:52,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:57:52,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:57:52,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:57:52,388 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:57:52,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:57:52,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:57:52,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:57:52,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:57:52,391 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:57:52,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:57:52,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:57:52,392 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:57:52,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:57:52,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:57:52,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:57:52,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:57:52,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:57:52,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:57:52,394 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:57:52,394 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:57:52,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:57:52,394 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:57:52,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:57:52,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:57:52,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:57:52,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:57:52,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:57:52,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:57:52,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:57:52,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:57:52,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:57:52,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:57:52,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:57:52,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:57:52,398 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:57:52,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:57:52,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:57:52,399 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:57:52,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:57:52,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:57:52,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:57:52,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:57:52,663 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:57:52,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2023-12-15 22:57:53,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:57:54,003 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:57:54,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c [2023-12-15 22:57:54,011 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a77b527/4d85c6a710dd46c98833b02b39eb4088/FLAG7fbdb5c77 [2023-12-15 22:57:54,027 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a77b527/4d85c6a710dd46c98833b02b39eb4088 [2023-12-15 22:57:54,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:57:54,030 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:57:54,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:57:54,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:57:54,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:57:54,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753485e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54, skipping insertion in model container [2023-12-15 22:57:54,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,057 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:57:54,184 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c[1168,1181] [2023-12-15 22:57:54,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:57:54,199 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:57:54,212 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c[1168,1181] [2023-12-15 22:57:54,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:57:54,224 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:57:54,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54 WrapperNode [2023-12-15 22:57:54,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:57:54,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:57:54,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:57:54,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:57:54,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,248 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-12-15 22:57:54,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:57:54,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:57:54,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:57:54,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:57:54,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 22:57:54,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:57:54,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:57:54,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:57:54,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:57:54,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (1/1) ... [2023-12-15 22:57:54,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:57:54,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:57:54,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:57:54,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:57:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:57:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:57:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:57:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2023-12-15 22:57:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2023-12-15 22:57:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:57:54,399 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:57:54,401 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:57:54,556 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:57:54,572 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:57:54,573 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 22:57:54,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:57:54 BoogieIcfgContainer [2023-12-15 22:57:54,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:57:54,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:57:54,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:57:54,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:57:54,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:57:54" (1/3) ... [2023-12-15 22:57:54,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5083c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:57:54, skipping insertion in model container [2023-12-15 22:57:54,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:57:54" (2/3) ... [2023-12-15 22:57:54,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5083c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:57:54, skipping insertion in model container [2023-12-15 22:57:54,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:57:54" (3/3) ... [2023-12-15 22:57:54,580 INFO L112 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2023-12-15 22:57:54,597 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:57:54,597 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:57:54,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:57:54,652 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;@7408c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:57:54,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:57:54,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-15 22:57:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-15 22:57:54,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:57:54,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:57:54,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:57:54,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:57:54,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1538870455, now seen corresponding path program 1 times [2023-12-15 22:57:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:57:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424011684] [2023-12-15 22:57:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:57:54,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:57:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:57:54,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:57:54,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424011684] [2023-12-15 22:57:54,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424011684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:57:54,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:57:54,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:57:54,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008641484] [2023-12-15 22:57:54,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:57:54,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:57:54,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:57:54,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:57:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:57:54,971 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:57:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:57:55,102 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2023-12-15 22:57:55,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:57:55,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-12-15 22:57:55,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:57:55,112 INFO L225 Difference]: With dead ends: 46 [2023-12-15 22:57:55,113 INFO L226 Difference]: Without dead ends: 24 [2023-12-15 22:57:55,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:57:55,123 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:57:55,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 52 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:57:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-15 22:57:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-12-15 22:57:55,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-15 22:57:55,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2023-12-15 22:57:55,176 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 11 [2023-12-15 22:57:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:57:55,176 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2023-12-15 22:57:55,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:57:55,177 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2023-12-15 22:57:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:57:55,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:57:55,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:57:55,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:57:55,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:57:55,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:57:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash -108557995, now seen corresponding path program 1 times [2023-12-15 22:57:55,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:57:55,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017321862] [2023-12-15 22:57:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:57:55,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:57:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:55,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:57:55,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:57:55,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017321862] [2023-12-15 22:57:55,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017321862] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:57:55,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952524390] [2023-12-15 22:57:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:57:55,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:57:55,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:57:55,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:57:55,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:57:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:55,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 22:57:55,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:57:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:57:55,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:57:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:57:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952524390] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:57:55,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:57:55,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-12-15 22:57:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868849970] [2023-12-15 22:57:55,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:57:55,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:57:55,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:57:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:57:55,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:57:55,605 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-15 22:57:55,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:57:55,774 INFO L93 Difference]: Finished difference Result 73 states and 125 transitions. [2023-12-15 22:57:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 22:57:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 18 [2023-12-15 22:57:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:57:55,783 INFO L225 Difference]: With dead ends: 73 [2023-12-15 22:57:55,783 INFO L226 Difference]: Without dead ends: 49 [2023-12-15 22:57:55,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:57:55,789 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:57:55,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 68 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:57:55,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-15 22:57:55,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-15 22:57:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 10 states have call successors, (10), 3 states have call predecessors, (10), 6 states have return successors, (27), 12 states have call predecessors, (27), 10 states have call successors, (27) [2023-12-15 22:57:55,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 75 transitions. [2023-12-15 22:57:55,807 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 75 transitions. Word has length 18 [2023-12-15 22:57:55,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:57:55,807 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 75 transitions. [2023-12-15 22:57:55,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-15 22:57:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2023-12-15 22:57:55,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-15 22:57:55,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:57:55,810 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:57:55,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:57:56,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:57:56,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:57:56,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:57:56,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1262121361, now seen corresponding path program 1 times [2023-12-15 22:57:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:57:56,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945102888] [2023-12-15 22:57:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:57:56,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:57:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:57:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:57:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:57:56,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:57:56,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945102888] [2023-12-15 22:57:56,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945102888] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:57:56,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981810929] [2023-12-15 22:57:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:57:56,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:57:56,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:57:56,442 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) [2023-12-15 22:57:56,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:57:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:56,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 22:57:56,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:57:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-15 22:57:56,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:57:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:57:57,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981810929] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:57:57,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:57:57,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2023-12-15 22:57:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769022054] [2023-12-15 22:57:57,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:57:57,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:57:57,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:57:57,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:57:57,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:57:57,100 INFO L87 Difference]: Start difference. First operand 49 states and 75 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-15 22:57:57,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:57:57,206 INFO L93 Difference]: Finished difference Result 119 states and 226 transitions. [2023-12-15 22:57:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:57:57,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 5 states have call successors, (8) Word has length 44 [2023-12-15 22:57:57,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:57:57,211 INFO L225 Difference]: With dead ends: 119 [2023-12-15 22:57:57,211 INFO L226 Difference]: Without dead ends: 52 [2023-12-15 22:57:57,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:57:57,215 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:57:57,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 67 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:57:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-12-15 22:57:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-12-15 22:57:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 36 states have internal predecessors, (39), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (28), 11 states have call predecessors, (28), 8 states have call successors, (28) [2023-12-15 22:57:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2023-12-15 22:57:57,235 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 44 [2023-12-15 22:57:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:57:57,235 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2023-12-15 22:57:57,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 5 states have call successors, (8) [2023-12-15 22:57:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2023-12-15 22:57:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-15 22:57:57,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:57:57,247 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 11, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:57:57,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:57:57,451 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,SelfDestructingSolverStorable2 [2023-12-15 22:57:57,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:57:57,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:57:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1462639456, now seen corresponding path program 2 times [2023-12-15 22:57:57,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:57:57,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465514378] [2023-12-15 22:57:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:57:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:57:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:57:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:57:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:57:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:57:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:57:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:57:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:57:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 127 proven. 266 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 22:57:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:57:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465514378] [2023-12-15 22:57:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465514378] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:57:58,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731546921] [2023-12-15 22:57:58,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-15 22:57:58,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:57:58,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:57:58,321 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:57:58,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:57:58,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-15 22:57:58,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:57:58,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 22:57:58,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:57:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 360 proven. 86 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-12-15 22:57:58,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 115 proven. 179 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2023-12-15 22:58:00,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731546921] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:00,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:00,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 15] total 33 [2023-12-15 22:58:00,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168279510] [2023-12-15 22:58:00,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:00,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-15 22:58:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:00,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-15 22:58:00,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2023-12-15 22:58:00,222 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 33 states, 33 states have (on average 2.303030303030303) internal successors, (76), 27 states have internal predecessors, (76), 11 states have call successors, (18), 2 states have call predecessors, (18), 15 states have return successors, (33), 19 states have call predecessors, (33), 11 states have call successors, (33) [2023-12-15 22:58:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:00,956 INFO L93 Difference]: Finished difference Result 125 states and 252 transitions. [2023-12-15 22:58:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-15 22:58:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.303030303030303) internal successors, (76), 27 states have internal predecessors, (76), 11 states have call successors, (18), 2 states have call predecessors, (18), 15 states have return successors, (33), 19 states have call predecessors, (33), 11 states have call successors, (33) Word has length 118 [2023-12-15 22:58:00,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:00,959 INFO L225 Difference]: With dead ends: 125 [2023-12-15 22:58:00,959 INFO L226 Difference]: Without dead ends: 77 [2023-12-15 22:58:00,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=587, Invalid=2835, Unknown=0, NotChecked=0, Total=3422 [2023-12-15 22:58:00,962 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 102 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:00,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 141 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 22:58:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-15 22:58:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2023-12-15 22:58:00,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 52 states have internal predecessors, (57), 13 states have call successors, (13), 7 states have call predecessors, (13), 11 states have return successors, (46), 16 states have call predecessors, (46), 13 states have call successors, (46) [2023-12-15 22:58:00,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2023-12-15 22:58:00,974 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 118 [2023-12-15 22:58:00,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:00,974 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2023-12-15 22:58:00,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.303030303030303) internal successors, (76), 27 states have internal predecessors, (76), 11 states have call successors, (18), 2 states have call predecessors, (18), 15 states have return successors, (33), 19 states have call predecessors, (33), 11 states have call successors, (33) [2023-12-15 22:58:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2023-12-15 22:58:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 22:58:00,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:00,976 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 11, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:00,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:01,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:01,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:01,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1363865912, now seen corresponding path program 3 times [2023-12-15 22:58:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250814043] [2023-12-15 22:58:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:01,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:58:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 125 proven. 275 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-15 22:58:01,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:01,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250814043] [2023-12-15 22:58:01,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250814043] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:01,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403251746] [2023-12-15 22:58:01,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-15 22:58:01,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:01,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:01,795 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:01,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:58:01,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2023-12-15 22:58:01,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:01,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 22:58:01,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 484 proven. 71 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-12-15 22:58:02,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 131 proven. 269 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-15 22:58:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403251746] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:03,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:03,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 16] total 27 [2023-12-15 22:58:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503781086] [2023-12-15 22:58:03,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:03,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-15 22:58:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:03,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-15 22:58:03,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2023-12-15 22:58:03,562 INFO L87 Difference]: Start difference. First operand 76 states and 116 transitions. Second operand has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 22 states have internal predecessors, (69), 11 states have call successors, (17), 2 states have call predecessors, (17), 12 states have return successors, (27), 13 states have call predecessors, (27), 11 states have call successors, (27) [2023-12-15 22:58:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:04,087 INFO L93 Difference]: Finished difference Result 170 states and 308 transitions. [2023-12-15 22:58:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-15 22:58:04,089 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 22 states have internal predecessors, (69), 11 states have call successors, (17), 2 states have call predecessors, (17), 12 states have return successors, (27), 13 states have call predecessors, (27), 11 states have call successors, (27) Word has length 130 [2023-12-15 22:58:04,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:04,095 INFO L225 Difference]: With dead ends: 170 [2023-12-15 22:58:04,095 INFO L226 Difference]: Without dead ends: 93 [2023-12-15 22:58:04,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 281 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=565, Invalid=1985, Unknown=0, NotChecked=0, Total=2550 [2023-12-15 22:58:04,098 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:04,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 171 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:58:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-15 22:58:04,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2023-12-15 22:58:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 58 states have internal predecessors, (65), 15 states have call successors, (15), 9 states have call predecessors, (15), 11 states have return successors, (46), 16 states have call predecessors, (46), 15 states have call successors, (46) [2023-12-15 22:58:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 126 transitions. [2023-12-15 22:58:04,124 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 126 transitions. Word has length 130 [2023-12-15 22:58:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:04,124 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 126 transitions. [2023-12-15 22:58:04,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 22 states have internal predecessors, (69), 11 states have call successors, (17), 2 states have call predecessors, (17), 12 states have return successors, (27), 13 states have call predecessors, (27), 11 states have call successors, (27) [2023-12-15 22:58:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 126 transitions. [2023-12-15 22:58:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 22:58:04,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:04,126 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 11, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:04,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:04,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:04,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:04,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:04,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1090473022, now seen corresponding path program 4 times [2023-12-15 22:58:04,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:04,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586606255] [2023-12-15 22:58:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:04,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:58:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 152 proven. 295 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2023-12-15 22:58:05,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:05,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586606255] [2023-12-15 22:58:05,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586606255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:05,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746102737] [2023-12-15 22:58:05,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-15 22:58:05,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:05,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:05,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:05,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:58:05,148 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-15 22:58:05,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:05,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 22:58:05,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 475 proven. 114 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-12-15 22:58:05,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 155 proven. 295 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-15 22:58:06,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746102737] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:06,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:06,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 17] total 24 [2023-12-15 22:58:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118718533] [2023-12-15 22:58:06,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:06,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-15 22:58:06,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:06,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-15 22:58:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:58:06,800 INFO L87 Difference]: Start difference. First operand 84 states and 126 transitions. Second operand has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (18), 2 states have call predecessors, (18), 12 states have return successors, (28), 11 states have call predecessors, (28), 12 states have call successors, (28) [2023-12-15 22:58:07,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:07,270 INFO L93 Difference]: Finished difference Result 193 states and 340 transitions. [2023-12-15 22:58:07,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-15 22:58:07,270 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (18), 2 states have call predecessors, (18), 12 states have return successors, (28), 11 states have call predecessors, (28), 12 states have call successors, (28) Word has length 130 [2023-12-15 22:58:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:07,272 INFO L225 Difference]: With dead ends: 193 [2023-12-15 22:58:07,272 INFO L226 Difference]: Without dead ends: 108 [2023-12-15 22:58:07,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 280 SyntacticMatches, 11 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=531, Invalid=1821, Unknown=0, NotChecked=0, Total=2352 [2023-12-15 22:58:07,274 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 78 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:07,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 174 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:58:07,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-15 22:58:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2023-12-15 22:58:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 66 states have (on average 1.121212121212121) internal successors, (74), 67 states have internal predecessors, (74), 18 states have call successors, (18), 9 states have call predecessors, (18), 14 states have return successors, (59), 22 states have call predecessors, (59), 18 states have call successors, (59) [2023-12-15 22:58:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 151 transitions. [2023-12-15 22:58:07,288 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 151 transitions. Word has length 130 [2023-12-15 22:58:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:07,289 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 151 transitions. [2023-12-15 22:58:07,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (18), 2 states have call predecessors, (18), 12 states have return successors, (28), 11 states have call predecessors, (28), 12 states have call successors, (28) [2023-12-15 22:58:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 151 transitions. [2023-12-15 22:58:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-15 22:58:07,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:07,290 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 13, 10, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:07,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:07,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:07,497 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:07,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -511219076, now seen corresponding path program 5 times [2023-12-15 22:58:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731070004] [2023-12-15 22:58:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:58:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 445 proven. 284 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2023-12-15 22:58:08,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:08,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731070004] [2023-12-15 22:58:08,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731070004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:08,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190673762] [2023-12-15 22:58:08,459 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-15 22:58:08,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:08,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:08,461 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:08,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:58:08,624 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2023-12-15 22:58:08,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:08,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-15 22:58:08,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 421 proven. 286 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2023-12-15 22:58:08,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 467 proven. 286 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-12-15 22:58:12,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190673762] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:12,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:12,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 27] total 38 [2023-12-15 22:58:12,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419570421] [2023-12-15 22:58:12,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:12,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-15 22:58:12,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-15 22:58:12,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1220, Unknown=0, NotChecked=0, Total=1406 [2023-12-15 22:58:12,749 INFO L87 Difference]: Start difference. First operand 99 states and 151 transitions. Second operand has 38 states, 38 states have (on average 2.1842105263157894) internal successors, (83), 32 states have internal predecessors, (83), 16 states have call successors, (19), 1 states have call predecessors, (19), 18 states have return successors, (36), 18 states have call predecessors, (36), 16 states have call successors, (36) [2023-12-15 22:58:13,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:13,499 INFO L93 Difference]: Finished difference Result 223 states and 398 transitions. [2023-12-15 22:58:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-15 22:58:13,509 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1842105263157894) internal successors, (83), 32 states have internal predecessors, (83), 16 states have call successors, (19), 1 states have call predecessors, (19), 18 states have return successors, (36), 18 states have call predecessors, (36), 16 states have call successors, (36) Word has length 156 [2023-12-15 22:58:13,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:13,512 INFO L225 Difference]: With dead ends: 223 [2023-12-15 22:58:13,512 INFO L226 Difference]: Without dead ends: 132 [2023-12-15 22:58:13,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 331 SyntacticMatches, 14 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1159 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=945, Invalid=4025, Unknown=0, NotChecked=0, Total=4970 [2023-12-15 22:58:13,516 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 81 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:13,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 227 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 22:58:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-15 22:58:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 114. [2023-12-15 22:58:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 75 states have (on average 1.1066666666666667) internal successors, (83), 76 states have internal predecessors, (83), 21 states have call successors, (21), 9 states have call predecessors, (21), 17 states have return successors, (80), 28 states have call predecessors, (80), 21 states have call successors, (80) [2023-12-15 22:58:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 184 transitions. [2023-12-15 22:58:13,538 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 184 transitions. Word has length 156 [2023-12-15 22:58:13,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:13,539 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 184 transitions. [2023-12-15 22:58:13,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.1842105263157894) internal successors, (83), 32 states have internal predecessors, (83), 16 states have call successors, (19), 1 states have call predecessors, (19), 18 states have return successors, (36), 18 states have call predecessors, (36), 16 states have call successors, (36) [2023-12-15 22:58:13,540 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 184 transitions. [2023-12-15 22:58:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-15 22:58:13,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:13,542 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 15, 12, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:13,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:13,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:13,749 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:13,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:13,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2140695240, now seen corresponding path program 6 times [2023-12-15 22:58:13,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314031130] [2023-12-15 22:58:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:13,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:58:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:58:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 600 proven. 156 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2023-12-15 22:58:15,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314031130] [2023-12-15 22:58:15,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314031130] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:15,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335169145] [2023-12-15 22:58:15,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-15 22:58:15,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:15,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:15,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:15,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 22:58:15,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2023-12-15 22:58:15,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:15,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 79 conjunts are in the unsatisfiable core [2023-12-15 22:58:15,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 583 proven. 158 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2023-12-15 22:58:15,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 597 proven. 189 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2023-12-15 22:58:16,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335169145] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:16,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:16,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 33] total 36 [2023-12-15 22:58:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629390529] [2023-12-15 22:58:16,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:16,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-15 22:58:16,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:16,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-15 22:58:16,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1171, Unknown=0, NotChecked=0, Total=1260 [2023-12-15 22:58:16,770 INFO L87 Difference]: Start difference. First operand 114 states and 184 transitions. Second operand has 36 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 29 states have internal predecessors, (55), 6 states have call successors, (9), 1 states have call predecessors, (9), 14 states have return successors, (22), 13 states have call predecessors, (22), 6 states have call successors, (22) [2023-12-15 22:58:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:19,361 INFO L93 Difference]: Finished difference Result 314 states and 625 transitions. [2023-12-15 22:58:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-15 22:58:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 29 states have internal predecessors, (55), 6 states have call successors, (9), 1 states have call predecessors, (9), 14 states have return successors, (22), 13 states have call predecessors, (22), 6 states have call successors, (22) Word has length 182 [2023-12-15 22:58:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:19,373 INFO L225 Difference]: With dead ends: 314 [2023-12-15 22:58:19,373 INFO L226 Difference]: Without dead ends: 284 [2023-12-15 22:58:19,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1570 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1015, Invalid=7357, Unknown=0, NotChecked=0, Total=8372 [2023-12-15 22:58:19,376 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 146 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 2745 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:19,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 482 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2745 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:58:19,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-15 22:58:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 186. [2023-12-15 22:58:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 121 states have (on average 1.0826446280991735) internal successors, (131), 122 states have internal predecessors, (131), 31 states have call successors, (31), 11 states have call predecessors, (31), 33 states have return successors, (230), 52 states have call predecessors, (230), 31 states have call successors, (230) [2023-12-15 22:58:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 392 transitions. [2023-12-15 22:58:19,404 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 392 transitions. Word has length 182 [2023-12-15 22:58:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:19,405 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 392 transitions. [2023-12-15 22:58:19,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 29 states have internal predecessors, (55), 6 states have call successors, (9), 1 states have call predecessors, (9), 14 states have return successors, (22), 13 states have call predecessors, (22), 6 states have call successors, (22) [2023-12-15 22:58:19,405 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 392 transitions. [2023-12-15 22:58:19,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-15 22:58:19,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:19,408 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 14, 11, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:19,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-15 22:58:19,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:19,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:19,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:19,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1922447937, now seen corresponding path program 7 times [2023-12-15 22:58:19,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:19,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448115976] [2023-12-15 22:58:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:19,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:58:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 502 proven. 372 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2023-12-15 22:58:20,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:20,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448115976] [2023-12-15 22:58:20,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448115976] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:20,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001075849] [2023-12-15 22:58:20,731 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-15 22:58:20,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:20,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:20,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 22:58:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:20,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-15 22:58:20,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 477 proven. 372 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2023-12-15 22:58:21,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 525 proven. 384 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2023-12-15 22:58:25,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001075849] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:25,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:25,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 28] total 35 [2023-12-15 22:58:25,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533816917] [2023-12-15 22:58:25,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:25,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-15 22:58:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:25,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-15 22:58:25,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 22:58:25,043 INFO L87 Difference]: Start difference. First operand 186 states and 392 transitions. Second operand has 35 states, 35 states have (on average 2.4) internal successors, (84), 31 states have internal predecessors, (84), 17 states have call successors, (20), 1 states have call predecessors, (20), 18 states have return successors, (37), 16 states have call predecessors, (37), 17 states have call successors, (37) [2023-12-15 22:58:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:25,810 INFO L93 Difference]: Finished difference Result 381 states and 896 transitions. [2023-12-15 22:58:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-15 22:58:25,811 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.4) internal successors, (84), 31 states have internal predecessors, (84), 17 states have call successors, (20), 1 states have call predecessors, (20), 18 states have return successors, (37), 16 states have call predecessors, (37), 17 states have call successors, (37) Word has length 169 [2023-12-15 22:58:25,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:25,814 INFO L225 Difference]: With dead ends: 381 [2023-12-15 22:58:25,814 INFO L226 Difference]: Without dead ends: 203 [2023-12-15 22:58:25,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 360 SyntacticMatches, 19 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1065, Invalid=4191, Unknown=0, NotChecked=0, Total=5256 [2023-12-15 22:58:25,821 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 54 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:25,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 223 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 22:58:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-15 22:58:25,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 167. [2023-12-15 22:58:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 110 states have internal predecessors, (118), 27 states have call successors, (27), 10 states have call predecessors, (27), 30 states have return successors, (162), 46 states have call predecessors, (162), 27 states have call successors, (162) [2023-12-15 22:58:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 307 transitions. [2023-12-15 22:58:25,844 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 307 transitions. Word has length 169 [2023-12-15 22:58:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:25,844 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 307 transitions. [2023-12-15 22:58:25,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.4) internal successors, (84), 31 states have internal predecessors, (84), 17 states have call successors, (20), 1 states have call predecessors, (20), 18 states have return successors, (37), 16 states have call predecessors, (37), 17 states have call successors, (37) [2023-12-15 22:58:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 307 transitions. [2023-12-15 22:58:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-15 22:58:25,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:25,847 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 16, 13, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:25,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:26,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-15 22:58:26,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:26,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1482736643, now seen corresponding path program 8 times [2023-12-15 22:58:26,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:26,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668230899] [2023-12-15 22:58:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:26,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:58:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:58:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:58:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 664 proven. 533 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2023-12-15 22:58:27,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:27,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668230899] [2023-12-15 22:58:27,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668230899] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:27,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068366292] [2023-12-15 22:58:27,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-15 22:58:27,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:27,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:27,288 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:27,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 22:58:27,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-15 22:58:27,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:27,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-15 22:58:27,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 647 proven. 519 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-12-15 22:58:27,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 685 proven. 580 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2023-12-15 22:58:32,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068366292] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:32,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:32,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 32] total 39 [2023-12-15 22:58:32,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923273648] [2023-12-15 22:58:32,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:32,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-15 22:58:32,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-15 22:58:32,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2023-12-15 22:58:32,467 INFO L87 Difference]: Start difference. First operand 167 states and 307 transitions. Second operand has 39 states, 39 states have (on average 2.4615384615384617) internal successors, (96), 35 states have internal predecessors, (96), 21 states have call successors, (24), 1 states have call predecessors, (24), 20 states have return successors, (45), 18 states have call predecessors, (45), 21 states have call successors, (45) [2023-12-15 22:58:33,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:33,040 INFO L93 Difference]: Finished difference Result 348 states and 743 transitions. [2023-12-15 22:58:33,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-15 22:58:33,041 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.4615384615384617) internal successors, (96), 35 states have internal predecessors, (96), 21 states have call successors, (24), 1 states have call predecessors, (24), 20 states have return successors, (45), 18 states have call predecessors, (45), 21 states have call successors, (45) Word has length 195 [2023-12-15 22:58:33,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:33,045 INFO L225 Difference]: With dead ends: 348 [2023-12-15 22:58:33,045 INFO L226 Difference]: Without dead ends: 189 [2023-12-15 22:58:33,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 416 SyntacticMatches, 21 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=789, Invalid=3243, Unknown=0, NotChecked=0, Total=4032 [2023-12-15 22:58:33,049 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 112 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:33,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 236 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 22:58:33,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-15 22:58:33,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2023-12-15 22:58:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 112 states have (on average 1.0714285714285714) internal successors, (120), 113 states have internal predecessors, (120), 28 states have call successors, (28), 10 states have call predecessors, (28), 31 states have return successors, (166), 48 states have call predecessors, (166), 28 states have call successors, (166) [2023-12-15 22:58:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 314 transitions. [2023-12-15 22:58:33,069 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 314 transitions. Word has length 195 [2023-12-15 22:58:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:33,069 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 314 transitions. [2023-12-15 22:58:33,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.4615384615384617) internal successors, (96), 35 states have internal predecessors, (96), 21 states have call successors, (24), 1 states have call predecessors, (24), 20 states have return successors, (45), 18 states have call predecessors, (45), 21 states have call successors, (45) [2023-12-15 22:58:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 314 transitions. [2023-12-15 22:58:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-15 22:58:33,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:33,071 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 17, 14, 13, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:33,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:33,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 22:58:33,281 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:33,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:33,281 INFO L85 PathProgramCache]: Analyzing trace with hash -599600630, now seen corresponding path program 9 times [2023-12-15 22:58:33,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:33,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777135778] [2023-12-15 22:58:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:58:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:58:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:58:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2320 backedges. 267 proven. 793 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2023-12-15 22:58:34,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:34,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777135778] [2023-12-15 22:58:34,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777135778] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:34,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800289701] [2023-12-15 22:58:34,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-15 22:58:34,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:34,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:34,135 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:34,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 22:58:34,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2023-12-15 22:58:34,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:34,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-15 22:58:34,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:34,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2320 backedges. 1340 proven. 196 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2023-12-15 22:58:34,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2320 backedges. 274 proven. 806 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2023-12-15 22:58:36,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800289701] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:36,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:36,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 21] total 28 [2023-12-15 22:58:36,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614005661] [2023-12-15 22:58:36,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:36,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-15 22:58:36,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:36,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-15 22:58:36,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2023-12-15 22:58:36,678 INFO L87 Difference]: Start difference. First operand 172 states and 314 transitions. Second operand has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 25 states have internal predecessors, (82), 16 states have call successors, (22), 2 states have call predecessors, (22), 14 states have return successors, (36), 13 states have call predecessors, (36), 16 states have call successors, (36) [2023-12-15 22:58:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:37,002 INFO L93 Difference]: Finished difference Result 337 states and 688 transitions. [2023-12-15 22:58:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-15 22:58:37,006 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 25 states have internal predecessors, (82), 16 states have call successors, (22), 2 states have call predecessors, (22), 14 states have return successors, (36), 13 states have call predecessors, (36), 16 states have call successors, (36) Word has length 208 [2023-12-15 22:58:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:37,009 INFO L225 Difference]: With dead ends: 337 [2023-12-15 22:58:37,009 INFO L226 Difference]: Without dead ends: 173 [2023-12-15 22:58:37,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 456 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=423, Invalid=1557, Unknown=0, NotChecked=0, Total=1980 [2023-12-15 22:58:37,012 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 68 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:37,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 226 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:58:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-15 22:58:37,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 172. [2023-12-15 22:58:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 112 states have (on average 1.0714285714285714) internal successors, (120), 113 states have internal predecessors, (120), 28 states have call successors, (28), 10 states have call predecessors, (28), 31 states have return successors, (162), 48 states have call predecessors, (162), 28 states have call successors, (162) [2023-12-15 22:58:37,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 310 transitions. [2023-12-15 22:58:37,029 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 310 transitions. Word has length 208 [2023-12-15 22:58:37,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:37,030 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 310 transitions. [2023-12-15 22:58:37,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 25 states have internal predecessors, (82), 16 states have call successors, (22), 2 states have call predecessors, (22), 14 states have return successors, (36), 13 states have call predecessors, (36), 16 states have call successors, (36) [2023-12-15 22:58:37,030 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 310 transitions. [2023-12-15 22:58:37,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-15 22:58:37,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:37,033 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 23, 19, 18, 18, 18, 18, 18, 18, 18, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:37,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:37,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-15 22:58:37,240 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:37,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1205881647, now seen corresponding path program 10 times [2023-12-15 22:58:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794482122] [2023-12-15 22:58:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:58:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:58:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 22:58:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:58:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:58:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 228 proven. 519 refuted. 0 times theorem prover too weak. 3582 trivial. 0 not checked. [2023-12-15 22:58:37,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:37,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794482122] [2023-12-15 22:58:37,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794482122] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:37,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306639487] [2023-12-15 22:58:37,947 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-15 22:58:37,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:37,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:37,948 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:37,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-15 22:58:38,354 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-15 22:58:38,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:38,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 22:58:38,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 234 proven. 507 refuted. 0 times theorem prover too weak. 3588 trivial. 0 not checked. [2023-12-15 22:58:38,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 234 proven. 522 refuted. 0 times theorem prover too weak. 3573 trivial. 0 not checked. [2023-12-15 22:58:39,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306639487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:39,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:39,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 11] total 15 [2023-12-15 22:58:39,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427679920] [2023-12-15 22:58:39,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:39,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 22:58:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:39,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 22:58:39,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:58:39,099 INFO L87 Difference]: Start difference. First operand 172 states and 310 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 11 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 7 states have call predecessors, (18), 11 states have call successors, (18) [2023-12-15 22:58:39,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:58:39,199 INFO L93 Difference]: Finished difference Result 176 states and 313 transitions. [2023-12-15 22:58:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:58:39,200 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 11 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 7 states have call predecessors, (18), 11 states have call successors, (18) Word has length 280 [2023-12-15 22:58:39,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:58:39,203 INFO L225 Difference]: With dead ends: 176 [2023-12-15 22:58:39,203 INFO L226 Difference]: Without dead ends: 172 [2023-12-15 22:58:39,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 631 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2023-12-15 22:58:39,204 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:39,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 108 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:58:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-15 22:58:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 160. [2023-12-15 22:58:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 104 states have (on average 1.0769230769230769) internal successors, (112), 105 states have internal predecessors, (112), 28 states have call successors, (28), 10 states have call predecessors, (28), 27 states have return successors, (126), 44 states have call predecessors, (126), 28 states have call successors, (126) [2023-12-15 22:58:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 266 transitions. [2023-12-15 22:58:39,220 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 266 transitions. Word has length 280 [2023-12-15 22:58:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:58:39,221 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 266 transitions. [2023-12-15 22:58:39,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 11 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 7 states have call predecessors, (18), 11 states have call successors, (18) [2023-12-15 22:58:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 266 transitions. [2023-12-15 22:58:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-15 22:58:39,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:58:39,224 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 23, 18, 17, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:58:39,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:39,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 22:58:39,431 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:58:39,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:58:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1937041362, now seen corresponding path program 11 times [2023-12-15 22:58:39,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:58:39,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018132543] [2023-12-15 22:58:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:58:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:58:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:58:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:58:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 22:58:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:58:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:58:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-15 22:58:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:58:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:58:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:58:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:58:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:58:40,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 599 proven. 1333 refuted. 0 times theorem prover too weak. 2175 trivial. 0 not checked. [2023-12-15 22:58:40,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:58:40,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018132543] [2023-12-15 22:58:40,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018132543] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:58:40,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033136117] [2023-12-15 22:58:40,810 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-15 22:58:40,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:58:40,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:58:40,812 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:58:40,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-15 22:58:41,173 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2023-12-15 22:58:41,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 22:58:41,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-15 22:58:41,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:58:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 2428 proven. 401 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2023-12-15 22:58:41,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:58:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 700 proven. 1204 refuted. 0 times theorem prover too weak. 2203 trivial. 0 not checked. [2023-12-15 22:58:48,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033136117] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:58:48,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:58:48,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 29] total 39 [2023-12-15 22:58:48,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711519735] [2023-12-15 22:58:48,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:58:48,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-15 22:58:48,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:58:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-15 22:58:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1300, Unknown=0, NotChecked=0, Total=1482 [2023-12-15 22:58:48,176 INFO L87 Difference]: Start difference. First operand 160 states and 266 transitions. Second operand has 39 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 34 states have internal predecessors, (100), 20 states have call successors, (26), 2 states have call predecessors, (26), 19 states have return successors, (46), 19 states have call predecessors, (46), 20 states have call successors, (46) Received shutdown request... [2023-12-15 22:58:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:58:48,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 600 SyntacticMatches, 21 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=340, Invalid=1730, Unknown=0, NotChecked=0, Total=2070 [2023-12-15 22:58:48,360 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 27 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:58:48,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 92 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:58:48,361 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:58:48,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-15 22:58:48,368 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:58:48,393 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:58:48,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-15 22:58:48,562 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (160states) and FLOYD_HOARE automaton (currently 11 states, 39 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-3-1 term,while SimplifyDDA2 was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-15 22:58:48,566 INFO L445 BasicCegarLoop]: Path program histogram: [11, 1, 1] [2023-12-15 22:58:48,568 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:58:48,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:58:48 BoogieIcfgContainer [2023-12-15 22:58:48,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:58:48,570 INFO L158 Benchmark]: Toolchain (without parser) took 54539.92ms. Allocated memory was 216.0MB in the beginning and 574.6MB in the end (delta: 358.6MB). Free memory was 149.6MB in the beginning and 216.8MB in the end (delta: -67.1MB). Peak memory consumption was 292.5MB. Max. memory is 8.0GB. [2023-12-15 22:58:48,570 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 216.0MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:58:48,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.94ms. Allocated memory is still 216.0MB. Free memory was 149.4MB in the beginning and 138.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-15 22:58:48,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.09ms. Allocated memory is still 216.0MB. Free memory was 138.6MB in the beginning and 137.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-15 22:58:48,571 INFO L158 Benchmark]: Boogie Preprocessor took 26.71ms. Allocated memory is still 216.0MB. Free memory was 137.2MB in the beginning and 135.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:58:48,571 INFO L158 Benchmark]: RCFGBuilder took 297.32ms. Allocated memory was 216.0MB in the beginning and 275.8MB in the end (delta: 59.8MB). Free memory was 135.5MB in the beginning and 232.1MB in the end (delta: -96.6MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2023-12-15 22:58:48,572 INFO L158 Benchmark]: TraceAbstraction took 53994.67ms. Allocated memory was 275.8MB in the beginning and 574.6MB in the end (delta: 298.8MB). Free memory was 231.6MB in the beginning and 216.8MB in the end (delta: 14.9MB). Peak memory consumption was 313.7MB. Max. memory is 8.0GB. [2023-12-15 22:58:48,573 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 216.0MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.94ms. Allocated memory is still 216.0MB. Free memory was 149.4MB in the beginning and 138.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.09ms. Allocated memory is still 216.0MB. Free memory was 138.6MB in the beginning and 137.2MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.71ms. Allocated memory is still 216.0MB. Free memory was 137.2MB in the beginning and 135.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 297.32ms. Allocated memory was 216.0MB in the beginning and 275.8MB in the end (delta: 59.8MB). Free memory was 135.5MB in the beginning and 232.1MB in the end (delta: -96.6MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * TraceAbstraction took 53994.67ms. Allocated memory was 275.8MB in the beginning and 574.6MB in the end (delta: 298.8MB). Free memory was 231.6MB in the beginning and 216.8MB in the end (delta: 14.9MB). Peak memory consumption was 313.7MB. 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: 45]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 45). Cancelled while NwaCegarLoop was constructing difference of abstraction (160states) and FLOYD_HOARE automaton (currently 11 states, 39 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-3-1 term,while SimplifyDDA2 was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.9s, OverallIterations: 13, TraceHistogramMax: 42, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 854 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 795 mSDsluCounter, 2267 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1950 mSDsCounter, 926 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7155 IncrementalHoareTripleChecker+Invalid, 8081 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 926 mSolverCounterUnsat, 317 mSDtfsCounter, 7155 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4844 GetRequests, 4150 SyntacticMatches, 116 SemanticMatches, 577 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8093 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=8, InterpolantAutomatonStates: 321, 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, 12 MinimizatonAttempts, 201 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 3819 NumberOfCodeBlocks, 3643 NumberOfCodeBlocksAsserted, 103 NumberOfCheckSat, 5686 ConstructedInterpolants, 0 QuantifiedInterpolants, 10472 SizeOfPredicates, 92 NumberOfNonLiveVariables, 5245 ConjunctsInSsa, 337 ConjunctsInUnsatCore, 37 InterpolantComputations, 1 PerfectInterpolantSequences, 46637/58968 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